{"product_id":"liquid-suspension-fertiliser-micronised-calcium-phosphate","title":"Liquid Phosphate Fertiliser UK | Calcium Phosphate Suspension | Foliar Spray","description":"\u003c!-- Dr Forest — Liquid Micronised Calcium Phosphate Suspension Product Page --\u003e\n\u003c!-- Prefix: cp --\u003e\n\u003cstyle\u003e\n  .drf-wrap *, .drf-wrap *::before, .drf-wrap *::after { box-sizing: border-box; margin: 0; padding: 0; }\n  .drf-wrap { font-family: 'Jost', sans-serif; font-weight: 400; color: #2c2c2c; font-size: 14px; line-height: 1.65; width: 100%; max-width: 100%; overflow: hidden; }\n  :root { --drf-grn:#1B3D2F; --drf-grn-light:#E8F0EB; --drf-grn-mid:#4a7a5e; --drf-grn-dark:#0f2a1e; --drf-gold:#C5A55A; --drf-gold-light:#FAF7F0; --drf-cream:#F5F2EC; --drf-border:#d4cfc5; --drf-muted:#666; }\n  .drf-wrap h2 { font-family: 'Cormorant Garamond', serif; font-weight: 600; font-size: 1.9em; color: var(--drf-grn); line-height: 1.25; margin-bottom: 0.5em; }\n  .drf-wrap h3 { font-family: 'Cormorant Garamond', serif; 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}\n  .drf-callout { background: var(--drf-grn-light); border-left: 3px solid var(--drf-grn); padding: 1em 1.2em; margin: 1.2em 0; border-radius: 0 3px 3px 0; }\n  .drf-callout-gold { background: var(--drf-gold-light); border-left-color: var(--drf-gold); }\n  .drf-callout p:last-child { margin-bottom: 0; }\n  .drf-callout-title { font-size: 0.72em; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--drf-grn); margin-bottom: 0.4em; display: block; }\n  .drf-callout-gold .drf-callout-title { color: var(--drf-gold); }\n  .drf-mech { border: 1px solid var(--drf-border); border-left: 3px solid var(--drf-gold); padding: 1em 1.2em; margin: 0.8em 0; border-radius: 0 3px 3px 0; background: var(--drf-grn-light); }\n  .drf-mech-num { font-family: 'Cormorant Garamond', serif; font-size: 2em; font-weight: 600; color: var(--drf-gold); line-height: 1; }\n  .drf-mech h4 { margin-top: 0.2em; color: var(--drf-grn); text-transform: none; letter-spacing: 0; font-size: 1em; }\n  .drf-mech p { font-size: 0.92em; 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}\n  .drf-faq:last-child { border-bottom: none; }\n  .drf-faq input[type=\"checkbox\"] { display: none; }\n  .drf-faq-q { display: flex; justify-content: space-between; align-items: center; padding: 0.8em 0; cursor: pointer; font-weight: 600; color: var(--drf-grn); font-size: 0.95em; }\n  .drf-faq-q::after { content: '+'; font-size: 1.3em; font-weight: 300; color: var(--drf-gold); width: 1.5em; height: 1.5em; border-radius: 50%; background: var(--drf-grn-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-left: 0.6em; }\n  .drf-faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; font-size: 0.92em; color: #555; line-height: 1.7; }\n  .drf-faq-a \u003e div { padding: 0 0 1em; }\n  .drf-faq input:checked ~ .drf-faq-q::after { content: '−'; background: var(--drf-grn); color: #fff; }\n  .drf-faq input:checked ~ .drf-faq-a { max-height: 600px; }\n  .drf-refs { font-size: 0.78em; color: #888; line-height: 1.5; margin-top: 1.5em; padding-top: 0.8em; border-top: 1px solid var(--drf-border); }\n  .drf-refs ol { padding-left: 1.4em; margin: 0; }\n  .drf-refs li { margin-bottom: 0.3em; }\n  .drf-sep { border: none; border-top: 2px solid var(--drf-gold); margin: 1.5em 0; }\n  .drf-wrap table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 0.92em; }\n  .drf-wrap table th { background: var(--drf-grn); color: #fff; font-weight: 600; padding: 0.6em 0.8em; text-align: left; font-size: 0.85em; letter-spacing: 0.04em; }\n  .drf-wrap table td { padding: 0.55em 0.8em; border-bottom: 1px solid var(--drf-border); }\n  .drf-wrap table tr:nth-child(even) td { background: var(--drf-grn-light); }\n\u003c\/style\u003e\n\n\u003cdiv class=\"drf-wrap\"\u003e\n\u003cdiv class=\"drf-tabs-wrap\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-cp-tabset\" id=\"drf-cp-tab1\" checked\u003e\n  \u003cinput type=\"radio\" name=\"drf-cp-tabset\" id=\"drf-cp-tab2\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-cp-tabset\" id=\"drf-cp-tab3\"\u003e\n  \u003cinput type=\"radio\" name=\"drf-cp-tabset\" id=\"drf-cp-tab4\"\u003e\n  \u003cdiv class=\"drf-tab-labels\"\u003e\n    \u003clabel for=\"drf-cp-tab1\"\u003eOverview\u003c\/label\u003e\n    \u003clabel for=\"drf-cp-tab2\"\u003eThe Science\u003c\/label\u003e\n    \u003clabel for=\"drf-cp-tab3\"\u003eHow to Use\u003c\/label\u003e\n    \u003clabel for=\"drf-cp-tab4\"\u003eFAQ\u003c\/label\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"drf-panels\"\u003e\n\n  \u003c!-- ═══════════ TAB 1 — OVERVIEW ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-cp-panel1\"\u003e\n    \u003ch2\u003eLiquid micronised calcium phosphate — calcium and phosphorus together in one product\u003c\/h2\u003e\n    \u003cdiv class=\"drf-badge-row\"\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e24.56% Calcium\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e10.71% Phosphorus\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003e10.73% Silicon\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eRecycled Plastic Bottle\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eACO Certified Organic\u003c\/span\u003e\n      \u003cspan class=\"drf-badge drf-badge-green\"\u003eContains Fulvic Acid\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eCalcium and phosphorus are the two most important minerals for photosynthesis and sugar production in plants. But here is the problem: in ionic form, they are chemically incompatible. Mix dissolved calcium with dissolved phosphate and they precipitate out of solution instantly — locked up and unavailable. This is why no conventional liquid fertiliser can deliver both. \u003cstrong\u003eThis product solves that problem.\u003c\/strong\u003e By suspending micronised mineral calcium phosphate in colloidal form with fulvic acid, both elements coexist in a single plant-available liquid — something that is not possible with any dissolved salt formulation.\u003c\/p\u003e\n    \u003cp\u003eThe source is \u003cstrong\u003enatural mineral calcium phosphate\u003c\/strong\u003e — rich in calcium, phosphorus, silicon, manganese, and iron. Micronised and suspended in a fulvic acid carrier that improves foliar and root uptake while feeding soil biology. \u003cstrong\u003eACO certified organic\u003c\/strong\u003e (456AI). Suitable as a foliar spray, soil drench, or fertigation input across all growth stages from pre-planting to fruit fill.\u003c\/p\u003e\n\n    \u003cdiv class=\"drf-stats\"\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e24.56%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eCalcium (Ca)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e10.71%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003ePhosphorus (P)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e10.73%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eSilicon (Si)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003eACO\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eCertified Organic\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003ch3\u003eFull analysis\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n\u003cth\u003eNutrient\u003c\/th\u003e\n\u003cth\u003eContent (w\/v)\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCalcium (Ca)\u003c\/td\u003e\n\u003ctd\u003e24.56%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSilicon (Si)\u003c\/td\u003e\n\u003ctd\u003e10.73%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTotal Phosphorus (P)\u003c\/td\u003e\n\u003ctd\u003e10.71%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e  — citrate insoluble P\u003c\/td\u003e\n\u003ctd\u003e7.56%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e  — citrate soluble P\u003c\/td\u003e\n\u003ctd\u003e3.15%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e  — water soluble P\u003c\/td\u003e\n\u003ctd\u003e20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eManganese (Mn)\u003c\/td\u003e\n\u003ctd\u003e1.66%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eIron (Fe)\u003c\/td\u003e\n\u003ctd\u003e0.86%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMagnesium (Mg)\u003c\/td\u003e\n\u003ctd\u003e0.34%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePotassium (K) — organic\u003c\/td\u003e\n\u003ctd\u003e0.15%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eZinc (Zn)\u003c\/td\u003e\n\u003ctd\u003e0.14%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCopper (Cu)\u003c\/td\u003e\n\u003ctd\u003e162 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\n    \u003cp\u003e\u003cem\u003eSG: 1.5  |  pH: 6.5–8.5  |  Appearance: thick, mid-brown liquid, citrus odour\u003c\/em\u003e\u003c\/p\u003e\n\n    \u003ch3\u003eWhat this calcium phosphate is used for\u003c\/h3\u003e\n    \u003cul class=\"drf-uses\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDelivering calcium and phosphorus together\u003c\/strong\u003e — the only liquid format that combines both minerals in plant-available form; eliminates the need for separate Ca and P applications that risk antagonistic lock-up\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBoosting brix and sugar levels\u003c\/strong\u003e — calcium and phosphorus are both required for photosynthesis; supplying them together directly increases the plant's capacity to produce and transport sugars to fruit\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRoot development and establishment\u003c\/strong\u003e — phosphorus drives root cell division; calcium builds the cell walls of every new root tip; together they produce faster, stronger root establishment at planting\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFlowering and fruit set\u003c\/strong\u003e — phosphorus fuels the energy metabolism of flowering; calcium strengthens pollen tube formation and fruit cell walls; critical from pre-flower through to fruit fill\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSilicon for plant defence\u003c\/strong\u003e — 10.73% silicon strengthens cell walls, improves drought tolerance, and increases resistance to fungal attack; an often-overlooked mineral that most fertilisers do not supply\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBonus trace minerals\u003c\/strong\u003e — 1.66% manganese, 0.86% iron, plus zinc and copper; delivers meaningful micronutrient supplementation alongside the primary calcium and phosphorus\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSoil biology stimulation\u003c\/strong\u003e — fulvic acid carrier feeds beneficial soil microorganisms and improves cation exchange capacity alongside delivering minerals\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eWhy micronised mineral calcium phosphate instead of conventional phosphorus?\u003c\/h3\u003e\n    \u003cdiv class=\"drf-compare\"\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eMicronised Mineral Suspension — this product\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003eCalcium and phosphorus coexist in colloidal form — no precipitation\u003c\/li\u003e\n          \u003cli\u003eNatural mineral source: Ca, P, Si, Mn, Fe, Zn, Cu in one product\u003c\/li\u003e\n          \u003cli\u003eFulvic acid improves foliar uptake and feeds soil biology\u003c\/li\u003e\n          \u003cli\u003eACO certified organic — audited and compliant\u003c\/li\u003e\n          \u003cli\u003eNo nitrogen included — apply P and Ca without forcing unwanted N\u003c\/li\u003e\n          \u003cli\u003eCompatible with most fertiliser inputs (non-ionic)\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"drf-compare-box\"\u003e\n        \u003ch4\u003eConventional P Sources (MAP\/DAP, Bone Meal)\u003c\/h4\u003e\n        \u003cul\u003e\n          \u003cli\u003eMAP\/DAP: highly acidic near the root zone; contains nitrogen whether you want it or not\u003c\/li\u003e\n          \u003cli\u003eBone meal: slow to break down, coarse particle size, unavailable for weeks\u003c\/li\u003e\n          \u003cli\u003eNeither can be combined with calcium in liquid form — they precipitate\u003c\/li\u003e\n          \u003cli\u003eNo silicon, no manganese, no fulvic acid — single-purpose inputs\u003c\/li\u003e\n          \u003cli\u003eBone meal is a slaughterhouse by-product — not suitable for plant-based growing systems\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"drf-callout\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eHandcrafted in Stockport\u003c\/span\u003e\u003cp\u003eEvery Dr Forest product is made by hand in small batches at our workshop in Stockport, Greater Manchester. We source ingredients for quality, not cost. Supplied in recycled plastic bottles.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 2 — THE SCIENCE ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-cp-panel2\"\u003e\n    \u003ch2\u003eThe science of calcium-phosphorus delivery from micronised mineral calcium phosphate\u003c\/h2\u003e\n    \u003ch3\u003eThe incompatibility problem\u003c\/h3\u003e\n    \u003cp\u003eCalcium (Ca²⁺) and phosphate (PO₄³⁻) ions are strongly attracted to each other. In any dissolved solution, they react immediately to form insoluble calcium phosphate precipitate — a white solid that drops out of solution and becomes unavailable to plants. This is why no conventional liquid fertiliser can contain both. It is also why adding soluble phosphate to calcium-rich soil often results in rapid lock-up. The colloidal micronised form sidesteps this chemistry entirely: the minerals are suspended as ultra-fine particles, not dissolved ions. They do not react with each other because they are not in ionic form.\u003c\/p\u003e\n    \u003chr class=\"drf-sep\"\u003e\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e01\u003c\/span\u003e\u003ch4\u003eNon-Ionic Colloidal Delivery\u003c\/h4\u003e\n\u003cp\u003eIn a micronised mineral suspension, the mineral particles are ground to sub-200-micron size and held in liquid by fulvic acid and surfactant action. Because the calcium and phosphorus remain locked in their mineral matrix rather than dissolved as free ions, they cannot precipitate. Once applied to soil or leaf surfaces, the particles are broken down by root exudates, microbial activity, and organic acids into plant-available ionic forms — but by that point they are in the rhizosphere, not in a mixing tank. This is why micronised suspensions can deliver mineral combinations that dissolved solutions cannot.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e02\u003c\/span\u003e\u003ch4\u003eCitrate Soluble Phosphorus\u003c\/h4\u003e\n\u003cp\u003eThe phosphorus in this product exists in three forms: citrate insoluble (7.56%), citrate soluble (3.15%), and water soluble (20 mg\/L). The citrate-soluble fraction is the most agronomically significant — it represents phosphorus that dissolves in the weak organic acids produced by plant roots and soil microorganisms. This is precisely the mechanism by which plants access phosphorus from rock-based sources. The high citrate-soluble fraction confirms that this phosphorus is genuinely plant-available through natural root activity, not just on paper.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e03\u003c\/span\u003e\u003ch4\u003eCalcium — Cell Walls, Signalling, Sugar Transport\u003c\/h4\u003e\n\u003cp\u003eCalcium cross-links pectin chains in cell walls, providing structural rigidity. It also functions as a secondary messenger in cellular signalling pathways — triggering defence responses to pathogen attack, regulating stomatal opening, and controlling pollen tube growth during fertilisation. Calcium is phloem-immobile: once deposited in a cell wall, it cannot be redistributed. This means actively growing tissues — root tips, shoot tips, developing fruit — require continuous external supply. Foliar and drench application of micronised calcium delivers it directly to where demand is highest.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e04\u003c\/span\u003e\u003ch4\u003ePhosphorus — Energy Currency of the Plant\u003c\/h4\u003e\n\u003cp\u003ePhosphorus is a component of ATP (adenosine triphosphate) — the molecule that stores and transfers energy in every living cell. Every metabolic reaction that requires energy — photosynthesis, sugar transport, cell division, root growth, flowering — depends on phosphorus. Deficient plants cannot produce enough ATP to power normal growth, resulting in stunted root systems, delayed flowering, and poor fruit set. Phosphorus is also a key component of DNA, RNA, and cell membranes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e05\u003c\/span\u003e\u003ch4\u003eSilicon — The Forgotten Defence Mineral\u003c\/h4\u003e\n\u003cp\u003eAt 10.73%, the silicon content of this product is unusually high. Silicon deposits in cell walls as amorphous silica, forming a physical barrier against fungal penetration and insect feeding. Research consistently demonstrates that silicon-supplemented plants show improved resistance to powdery mildew, botrytis, and other foliar pathogens. Silicon also improves water use efficiency by reducing transpiration through thickened cuticles, and increases tolerance to heavy metal toxicity in contaminated soils.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e06\u003c\/span\u003e\u003ch4\u003eManganese and Iron — Hidden Bonus\u003c\/h4\u003e\n\u003cp\u003eAt 1.66% Mn and 0.86% Fe, this product delivers meaningful micronutrient supplementation as a secondary benefit. Manganese is required for the water-splitting reaction in photosystem II — the first step of photosynthesis. Iron is essential for chlorophyll synthesis and electron transport. Both are commonly deficient in alkaline or calcareous soils. Receiving them alongside calcium and phosphorus from a single product simplifies the nutrition programme and reduces the number of separate inputs required.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-refs\"\u003e\n\u003ch4\u003eScientific References\u003c\/h4\u003e\n\u003col\u003e\n      \u003cli\u003eMarschner, P. (2012). \u003cem\u003eMarschner's Mineral Nutrition of Higher Plants\u003c\/em\u003e. 3rd ed. Academic Press.\u003c\/li\u003e\n      \u003cli\u003eMa, J.F. \u0026amp; Yamaji, N. (2006). Silicon uptake and accumulation in higher plants. \u003cem\u003eTrends in Plant Science\u003c\/em\u003e, 11(8), 392–397.\u003c\/li\u003e\n      \u003cli\u003eWhite, P.J. \u0026amp; Broadley, M.R. (2003). Calcium in plants. \u003cem\u003eAnnals of Botany\u003c\/em\u003e, 92(4), 487–511.\u003c\/li\u003e\n      \u003cli\u003eNardi, S. et al. (2009). Physiological effects of humic substances on higher plants. \u003cem\u003eSoil Biol. Biochem.\u003c\/em\u003e, 41, 215–229.\u003c\/li\u003e\n      \u003cli\u003eLiang, Y. et al. (2007). Importance of plant species and external silicon concentration to active silicon uptake and transport. \u003cem\u003eNew Phytologist\u003c\/em\u003e, 172(1), 63–72.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 3 — HOW TO USE ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-cp-panel3\"\u003e\n    \u003ch2\u003eHow to use liquid micronised calcium phosphate: application rates \u0026amp; guide\u003c\/h2\u003e\n    \u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eShake vigorously before every use\u003c\/span\u003e\u003cp\u003eThis is a heavy mineral suspension (SG 1.5) — significantly denser than water. The particles settle rapidly during storage. Shake vigorously for 15–20 seconds before measuring. Add to a small amount of warm water (20–30°C) and stir for at least 30 seconds before topping up. Maintain constant agitation during sprayer use. Use a coarse inline filter (500 micron \/ 35 mesh) to prevent blockages from contaminants.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003ch3\u003eApplication rates — professional \u0026amp; commercial\u003c\/h3\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFoliar spray — vegetables\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 10 ml per litre of water (1 L per 100 L)  |  \u003cstrong\u003eMax per hectare:\u003c\/strong\u003e 5 L\/ha\u003c\/div\u003e\n\u003cp\u003eApply weekly or as required. Target all growth stages from planting through to fruit fill. Ensure thorough foliage coverage. Where higher water volumes are needed, do not exceed the maximum product rate per hectare.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFoliar spray — orchards \u0026amp; vineyards\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 10 ml per litre of water (1 L per 100 L)  |  \u003cstrong\u003eMax per hectare:\u003c\/strong\u003e 10 L\/ha\u003c\/div\u003e\n\u003cp\u003eApply every 2–4 weeks or as required. Particularly valuable from pre-flower through fruit fill for calcium-dependent fruit quality and phosphorus-driven energy metabolism.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFoliar spray — ornamentals \u0026amp; turf\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 10 ml per litre of water (1 L per 100 L)  |  \u003cstrong\u003eMax per hectare:\u003c\/strong\u003e 7 L\/ha\u003c\/div\u003e\n\u003cp\u003eApply every 2–4 weeks or as required. Silicon content improves disease resistance and structural strength in managed landscapes.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eBroadacre crops \u0026amp; pasture\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 2–3 L\/ha in 60–100 L water  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e As required\u003c\/div\u003e\n\u003cp\u003eAdjust water volume depending on canopy closure. Apply at key growth stages based on crop monitoring and soil test data.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFertigation \u0026amp; soil amelioration\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 10–30 L\/ha  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e As required\u003c\/div\u003e\n\u003cp\u003eUse the higher rate for soil amelioration where phosphorus and calcium deficiencies have been identified. Use the lower rate for maintenance fertigation. Always consider nitrogen and phosphorus crop requirements based on reliable soil test data.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eLiquid inject — in-furrow at planting\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 2–5 L\/ha  |  \u003cstrong\u003eDilution:\u003c\/strong\u003e Minimum 1 part product to 3 parts water\u003c\/div\u003e\n\u003cp\u003eApply in-furrow at planting for immediate root-zone access to calcium and phosphorus. Rate depends on crop, row spacing, and soil type.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eSpot spraying\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 5 ml per litre of water (50 ml per 10 L)  |  \u003cstrong\u003eFrequency:\u003c\/strong\u003e As required\u003c\/div\u003e\n\u003cp\u003eFor targeted foliar application to individual plants or small areas showing deficiency symptoms.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003ch3\u003eApplication rates — home garden\u003c\/h3\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFoliar spray \u0026amp; soil drench\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eRate:\u003c\/strong\u003e 45 ml per 9-litre watering can  |  \u003cstrong\u003eCoverage:\u003c\/strong\u003e Apply 1 litre of diluted mix per m²\u003c\/div\u003e\n\u003cp\u003eShake well before use. Dilute 45 ml into a 9-litre watering can. The diluted mix can be applied as a soil drench around the root zone or poured over foliage as a foliar feed. Repeat every 2–4 weeks or as required during the growing season.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eGrowth stage guide\u003c\/h4\u003e\n\u003cdiv class=\"drf-rate-meta\"\u003e\n\u003cstrong\u003eAll stages:\u003c\/strong\u003e Pre-planting through to fruit fill\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePre-planting:\u003c\/strong\u003e Drench soil before planting to build calcium and phosphorus reserves. \u003cstrong\u003ePlanting \u0026amp; establishment:\u003c\/strong\u003e Apply as a root drench to support root cell division. \u003cstrong\u003eVegetative growth:\u003c\/strong\u003e Every 2–4 weeks to support strong structural development. \u003cstrong\u003ePre-flower to fruit fill:\u003c\/strong\u003e Every 2–3 weeks to fuel flowering energy and fruit cell wall construction.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003ch3\u003eStep-by-step preparation\u003c\/h3\u003e\n    \u003col class=\"drf-steps\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eShake the bottle vigorously\u003c\/strong\u003e for 15–20 seconds. This is a heavy suspension — particles settle quickly.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMeasure the required volume.\u003c\/strong\u003e Home garden: 45 ml per 9L watering can. Use a measuring cup or syringe.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAdd to a small amount of warm water\u003c\/strong\u003e (20–30°C) and stir vigorously for 30 seconds. Then top up to the full volume.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eApply immediately.\u003c\/strong\u003e For foliar, spray both leaf surfaces in early morning or late evening. For soil drench, apply at 1L per m² around the root zone.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eClean equipment after use.\u003c\/strong\u003e The mineral particles can settle and clog sprayer nozzles if left to dry. Flush with clean water immediately after application.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eVisible residue on foliage\u003c\/span\u003e\u003cp\u003eMicronised mineral suspensions leave a visible residue on leaves and fruit. This is normal and not harmful. If produce appearance matters close to harvest, switch to soil drench application or spray earlier in the growing season.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"drf-callout\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eWorks well combined with…\u003c\/span\u003e\u003cp\u003eUse alongside \u003cstrong\u003eYorkshire Polyhalite\u003c\/strong\u003e for slow-release K, Ca, Mg, and S in the soil. Pair with \u003cstrong\u003eMicro-7\u003c\/strong\u003e for complete chelated trace element coverage. Add \u003cstrong\u003eSeaweed Powder\u003c\/strong\u003e for biostimulant activity and improved foliar wetting. Compatible with most fertiliser inputs due to the non-ionic colloidal format — but avoid combining with concentrated dissolved calcium or phosphate solutions. Jar-test before mixing with any new product.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ═══════════ TAB 4 — FAQ ═══════════ --\u003e\n  \u003cdiv class=\"drf-panel\" id=\"drf-cp-panel4\"\u003e\n    \u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq1\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq1\"\u003eWhy can't normal liquid fertilisers contain both calcium and phosphorus?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eDissolved calcium ions (Ca²⁺) and phosphate ions (PO₄³⁻) react to form insoluble calcium phosphate precipitate. It drops out of solution and becomes unavailable. This is basic chemistry — you cannot dissolve both in the same liquid. The micronised colloidal form solves this: the minerals are suspended as ultra-fine solid particles, not dissolved ions, so they cannot react with each other.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq2\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq2\"\u003eWhat is the phosphorus source?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eNatural mineral calcium phosphate — a mineral deposit rich in calcium phosphate, silicon, manganese, and iron. It is micronised (ground to ultra-fine particles) and suspended in a fulvic acid carrier. This is not a synthetic phosphate source. ACO certified organic.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq3\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq3\"\u003eIs the phosphorus actually plant-available?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes. The analysis shows 3.15% citrate-soluble phosphorus — this is the fraction that dissolves in the weak organic acids produced by plant roots and soil microbes. This is the standard measure of plant-available phosphorus from rock-based sources. The micronised particle size also accelerates breakdown compared to coarser rock phosphate products.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq4\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq4\"\u003eHow is this different from bone meal?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eThree differences: particle size, mineral complexity, and source. This product is micronised to sub-200-micron particles — it breaks down in days, not months. It also delivers silicon (10.73%), manganese (1.66%), and iron (0.86%) that bone meal does not contain. And it is mineral-sourced — plant-based growers who avoid slaughterhouse by-products can use this without compromise.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq5\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq5\"\u003eWhy is the silicon content important?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eSilicon deposits in cell walls as amorphous silica, creating a physical barrier against fungal penetration and insect feeding. Research consistently shows silicon-supplemented plants have improved resistance to powdery mildew, botrytis, and aphids. Silicon also improves water use efficiency and drought tolerance. Most fertilisers contain no silicon — the 10.73% in this product is a significant bonus.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq6\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq6\"\u003eDoes this contain nitrogen?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eNo. This is a nitrogen-free source of calcium and phosphorus. This is a significant advantage when you need P and Ca without forcing additional nitrogen — conventional options like MAP, DAP, and calcium nitrate all include nitrogen whether you want it or not. Use this product when you need calcium and phosphorus at any growth stage without pushing vegetative growth.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq7\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq7\"\u003eWill it leave marks on my plants?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes — micronised mineral suspensions leave a visible residue on foliage and fruit. This is harmless. If appearance matters close to harvest, use as a soil drench instead of foliar spray, or time foliar applications earlier in the growing season.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq8\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq8\"\u003eCan I use this in drip irrigation?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes, with appropriate precautions. Maintain constant agitation in the mixing tank. Use a coarse inline filter (500 micron \/ 35 mesh). The product passes through standard irrigation equipment under normal conditions. Flush lines with clean water after use to prevent residue buildup.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq9\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq9\"\u003eHow should I store it?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eStore upright in a cool, dry place between 5–25°C, out of direct sunlight. Keep sealed. Shake vigorously before each use. Do not store below 5°C — sedimentation may occur. Do not store in diluted form — mix fresh for each application.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"drf-faq\"\u003e\n\u003cinput type=\"checkbox\" id=\"drf-cp-faq10\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-cp-faq10\"\u003eIs the bottle recyclable?\u003c\/label\u003e\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes. This product is supplied in recycled plastic bottles.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\n\u003chr class=\"drf-sep\"\u003e\n\u003ch3\u003eFrom our phosphorus range\u003c\/h3\u003e\n\u003cul\u003e\n      \u003cli\u003e\n\u003ca href=\"\/products\/rock-phosphate-fertiliser-uk-31\"\u003eRock Phosphate Fertiliser\u003c\/a\u003e — 31% P, 46% Ca, micronised mineral powder\u003c\/li\u003e\n      \u003cli\u003e\n\u003ca href=\"\/products\/organic-phosphorus-fertiliser-15\"\u003ePhosphorus Meal\u003c\/a\u003e — 15% P, calcined plant meal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Dr Forest","offers":[{"title":"1 litre","offer_id":55997624451446,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true},{"title":"500ml","offer_id":55997624484214,"sku":null,"price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0049\/8194\/8504\/files\/liquid-suspension-fertiliser-micronised-calcium-phosphate-969.webp?v=1772229770","url":"https:\/\/www.drforest.co.uk\/products\/liquid-suspension-fertiliser-micronised-calcium-phosphate","provider":"Dr Forest","version":"1.0","type":"link"}