{"product_id":"organic-liquid-nitrogen-fertiliser","title":"Organic Nitrogen Fertiliser | Liquid Amino Acid Feed 10% N","description":"\u003c!-- Dr Forest — Organic Liquid Nitrogen Fertiliser 10% N --\u003e\n\u003c!-- Prefix: drf-ln- | Design System v1.0 | 4-tab --\u003e\n\u003c!-- Pure CSS radio tabs. No JavaScript. 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justify-content: center; }\n  .drf-steps li:last-child { border-bottom: none; }\n\n  \/* USE CASES *\/\n  .drf-uses { list-style: none; padding: 0; }\n  .drf-uses li { padding: 0.6em 0; border-bottom: 1px solid var(--drf-gold); }\n  .drf-uses li:nth-child(even) { border-bottom-color: var(--drf-grn); }\n  .drf-uses li:last-child { border-bottom: none; }\n  .drf-uses li strong { color: var(--drf-grn); }\n\n  \/* COMPARISON *\/\n  .drf-compare { margin: 1.2em 0; }\n  .drf-compare-box { border: 1px solid var(--drf-border); padding: 1em 1.2em; margin-bottom: 0.8em; background: var(--drf-grn-light); }\n  .drf-compare-box h4 { margin-top: 0; color: var(--drf-grn); text-transform: none; letter-spacing: 0; font-size: 1.05em; font-family: 'Cormorant Garamond', serif; font-weight: 400; border-bottom: 1px solid var(--drf-gold); padding-bottom: 0.4em; margin-bottom: 0.6em; }\n\n  \/* TABLES *\/\n  .drf-wrap table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: 0.92em; }\n  .drf-wrap table th { background: var(--drf-grn); 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font-size: 0.92em; line-height: 1.7; }\n  .drf-faq-a \u003e div { padding: 0 0 1em; }\n  .drf-faq input:checked ~ .drf-faq-q::after { content: '\\2212'; background: var(--drf-grn); color: #fff; border-color: var(--drf-grn); }\n  .drf-faq input:checked ~ .drf-faq-a { max-height: 900px; }\n\n  \/* REFS + RULE *\/\n  .drf-refs { font-size: 0.78em; color: var(--drf-muted); 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: 1px solid var(--drf-gold); width: 200px; margin: 1.8em auto; }\n\u003c\/style\u003e\n\u003cdiv class=\"drf-wrap\"\u003e\n\u003cdiv class=\"drf-tabs-wrap\"\u003e\n\u003cinput checked id=\"drf-ln-tab1\" name=\"drf-ln-tabset\" type=\"radio\"\u003e \u003cinput id=\"drf-ln-tab2\" name=\"drf-ln-tabset\" type=\"radio\"\u003e \u003cinput id=\"drf-ln-tab3\" name=\"drf-ln-tabset\" type=\"radio\"\u003e \u003cinput id=\"drf-ln-tab4\" name=\"drf-ln-tabset\" type=\"radio\"\u003e \n\u003cdiv class=\"drf-tab-labels\"\u003e\n\u003clabel for=\"drf-ln-tab1\"\u003eOverview\u003c\/label\u003e\n\u003clabel for=\"drf-ln-tab2\"\u003eThe Science\u003c\/label\u003e\n\u003clabel for=\"drf-ln-tab3\"\u003eHow to Use\u003c\/label\u003e\n\u003clabel for=\"drf-ln-tab4\"\u003eFAQ\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-panels\"\u003e\n\u003cdiv id=\"drf-ln-panel1\" class=\"drf-panel\"\u003e\n\u003ch2\u003eOrganic liquid nitrogen fertiliser: 10% N from plant amino acids and peptides\u003c\/h2\u003e\n\u003cdiv class=\"drf-badge-row\"\u003e\n\u003cspan class=\"drf-badge drf-badge-green\"\u003e10% nitrogen\u003c\/span\u003e \u003cspan class=\"drf-badge drf-badge-green\"\u003e45% organic matter\u003c\/span\u003e \u003cspan class=\"drf-badge drf-badge-green\"\u003eAmino acid form\u003c\/span\u003e \u003cspan class=\"drf-badge drf-badge-green\"\u003eSodium free\u003c\/span\u003e \u003cspan class=\"drf-badge drf-badge-gold\"\u003eChloride free\u003c\/span\u003e \u003cspan class=\"drf-badge drf-badge-gold\"\u003eFoliar or root\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eLiquid nitrogen fertiliser\u003c\/strong\u003e supplies 10% total nitrogen in the form plants evolved to use: plant-derived amino acids and short peptides, rather than nitrate or urea. Plants can and do take up intact amino acids through their roots, and a nitrogen source arriving as peptides feeds soil biology on the way in, which a mineral nitrate salt does not. At 45% organic matter, nearly half of every dose is plant-derived organic matter rather than water and dissolved salt.\u003c\/p\u003e\n\u003cp\u003eNitrogen is the nutrient that builds a plant. It is in every protein, every enzyme and every chlorophyll molecule, and it is the one gardeners run short of first because it is the one that leaches out fastest. Shortage shows as uniform yellowing that starts on the oldest leaves and works up, with growth slowing to a halt.\u003c\/p\u003e\n\u003cp\u003eIt carries no sodium and no chlorine, so it can be used in containers, in drip lines and in recirculating systems without the salt build-up that dogs mineral nitrogen feeding. The solution is brown, which is the organic fraction rather than a fault.\u003c\/p\u003e\n\u003cdiv class=\"drf-stats\"\u003e\n\u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e10%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eTotal nitrogen (N)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e45%\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eOrganic matter\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e5 – 7\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003epH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-stat\"\u003e\n\u003cspan class=\"drf-stat-number\"\u003e1.13 – 1.23\u003c\/span\u003e\u003cspan class=\"drf-stat-label\"\u003eDensity kg\/l\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat to use liquid nitrogen for\u003c\/h3\u003e\n\u003cul class=\"drf-uses\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeafy crops through the whole growing period.\u003c\/strong\u003e Lettuce, chard, spinach, kale, cabbage and cutting salads all run on nitrogen from sowing to harvest. This is the most direct application of the product\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrecting nitrogen deficiency quickly.\u003c\/strong\u003e Uniform pale yellowing on older leaves first, with growth stalling. A foliar application is the fastest available correction, days rather than weeks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarly vegetative growth on fruiting crops.\u003c\/strong\u003e Tomatoes, peppers, courgettes and cucumbers need nitrogen to build the frame before they set fruit. Feed hard early, then taper as flowering begins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrassicas and heavy feeders on the plot.\u003c\/strong\u003e Sprouts, purple sprouting broccoli, leeks and sweetcorn all carry high nitrogen demand over a long season\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter heavy rain on light soil.\u003c\/strong\u003e Nitrate leaches readily through sandy and free-draining ground. A liquid top-up is the practical response to a wet fortnight in early summer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding soil life alongside the plant.\u003c\/strong\u003e 45% organic matter means each application delivers carbon and amino nitrogen to the microbial community, not only to the crop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold-season growing under cover.\u003c\/strong\u003e Root nitrate uptake slows in cold soil. Amino acid nitrogen and foliar application both help bridge that gap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAmino acid nitrogen compared with mineral nitrogen\u003c\/h3\u003e\n\u003cdiv class=\"drf-compare\"\u003e\n\u003cdiv class=\"drf-compare-box\"\u003e\n\u003ch4\u003eLiquid amino acid nitrogen 10% N\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eNitrogen as amino acids and peptides, a form plant roots absorb intact\u003c\/li\u003e\n\u003cli\u003e45% organic matter feeds soil biology as well as the crop\u003c\/li\u003e\n\u003cli\u003eFree of sodium and chlorine, so no salt accumulation in containers\u003c\/li\u003e\n\u003cli\u003eWorks as a root drench or a foliar spray from the same bottle\u003c\/li\u003e\n\u003cli\u003eMade from plant residue rather than manufactured from natural gas\u003c\/li\u003e\n\u003cli\u003eLower risk of the soft, sappy growth that heavy nitrate feeding produces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-compare-box\"\u003e\n\u003ch4\u003eAmmonium nitrate and mineral nitrogen salts\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately available and cheap per unit of nitrogen\u003c\/li\u003e\n\u003cli\u003eManufactured through the Haber-Bosch process, which is energy-intensive\u003c\/li\u003e\n\u003cli\u003eLeaches readily and contributes to nitrate in groundwater\u003c\/li\u003e\n\u003cli\u003eNo carbon contribution, so it feeds the plant and nothing else\u003c\/li\u003e\n\u003cli\u003eEasy to overdo, producing soft growth and higher tissue nitrate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eTiming matters more with nitrogen than with anything else\u003c\/span\u003e\n\u003cp\u003eNitrogen late in a fruiting crop pushes leaf at the expense of fruit, delays ripening and softens tissue. Feed nitrogen hard while the plant is building its frame, then taper it off as flowering starts and hand over to potassium. On leafy crops there is no such handover, so keep feeding to harvest.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eMade with organic ingredients. \u003cem\u003eMade by Growers. Backed by Science.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"drf-ln-panel2\" class=\"drf-panel\"\u003e\n\u003ch2\u003eThe science of amino acid nitrogen\u003c\/h2\u003e\n\u003cp\u003eFor most of the twentieth century the working assumption was that plants take up nitrogen only as nitrate or ammonium, and that any organic nitrogen has to be mineralised by soil microbes first. That picture turned out to be incomplete. Plants across a wide range of families take up intact amino acids directly through root transporters, and in some systems organic nitrogen accounts for a substantial share of total uptake (Näsholm et al., 2009).\u003c\/p\u003e\n\u003cp class=\"drf-pullquote\"\u003eNitrogen arriving as amino acids has already done part of the plant’s work for it.\u003c\/p\u003e\n\u003ch3\u003eWhy the form of nitrogen matters\u003c\/h3\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e01\u003c\/span\u003e\n\u003ch4\u003eDirect uptake without reduction\u003c\/h4\u003e\n\u003cp\u003eNitrate taken up by a root has to be reduced to ammonium and then assimilated into amino acids before it can be used, a process with a real energy cost. Amino acid nitrogen arrives past that step (Näsholm et al., 2009).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e02\u003c\/span\u003e\n\u003ch4\u003eBiostimulant effects beyond nutrition\u003c\/h4\u003e\n\u003cp\u003ePlant-derived protein hydrolysates produce responses that cannot be explained by their nutrient content alone: improved root growth, better nutrient uptake and greater tolerance of salinity and drought stress (Colla et al., 2015).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e03\u003c\/span\u003e\n\u003ch4\u003eEffects on the root microbiome\u003c\/h4\u003e\n\u003cp\u003eProtein hydrolysates alter rhizosphere microbial community composition and activity, with knock-on effects on nutrient availability at the root surface (Colla et al., 2017).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e04\u003c\/span\u003e\n\u003ch4\u003eFertiliser source changes tissue nitrate\u003c\/h4\u003e\n\u003cp\u003eIn greenhouse lettuce grown on degraded soil, the choice of organic fertiliser source significantly changed leaf nitrate concentration, with the lowest-nitrate treatment sitting 27% below the other organic treatments (Cardarelli et al., 2023). Nitrate accumulation matters most in leafy salads, which accumulate the most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-mech\"\u003e\n\u003cspan class=\"drf-mech-num\"\u003e05\u003c\/span\u003e\n\u003ch4\u003eCarbon alongside nitrogen\u003c\/h4\u003e\n\u003cp\u003eAt 45% organic matter, each application delivers plant-derived carbon into the root zone. A meta-analysis across tillage systems found organic fertilisation raising soil organic carbon by around 12.9% over mineral-only regimes, rising to 20.6% under no-till (Dal Ferro et al., 2022).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr class=\"drf-sep\"\u003e\n\u003ch3\u003eWhat nitrogen does in the plant\u003c\/h3\u003e\n\u003cp\u003eNitrogen is the backbone of amino acids, and therefore of every protein and every enzyme. It sits at the centre of the chlorophyll molecule, which is why deficiency shows as yellowing. The plant is dismantling chlorophyll in old leaves to move the nitrogen to new growth. That mobility is diagnostic: nitrogen deficiency always appears on the oldest leaves first, where iron or sulphur deficiency appears on the newest (Marschner, 2012).\u003c\/p\u003e\n\u003cp\u003eIt is also the nutrient most easily overdone. Excess nitrogen produces large, soft, thin-walled cells that are more attractive to aphids, more susceptible to fungal problems and slower to ripen. The advantage of a peptide-based nitrogen source is that release is somewhat buffered by the need for partial microbial processing, which softens the peaks that a soluble nitrate salt produces.\u003c\/p\u003e\n\u003ch3\u003eSodium, chloride and container growing\u003c\/h3\u003e\n\u003cp\u003eThe formulation is free of sodium and chlorine. In open ground this matters little. In pots, grow bags and any recirculating system it matters a great deal, because there is no rainfall flushing the root zone. Sodium and chloride accumulate through a season of feeding, raise the osmotic load at the root surface and reduce water uptake. The plant then behaves as though it is short of water while sitting in wet compost.\u003c\/p\u003e\n\u003ch3\u003ePlant-derived rather than manufactured\u003c\/h3\u003e\n\u003cp\u003eIndustrial nitrogen fixation through the Haber-Bosch process consumes roughly 1% to 2% of global energy production. Using nitrogen already fixed in plant material avoids that cost, and the literature on bio-based fertilisers treats plant-derived nitrogen as a credible alternative to manufactured mineral sources (Chojnacka et al., 2020).\u003c\/p\u003e\n\u003cp\u003eBecause the feedstock is real plant material, nutrient content varies slightly around the 10% specification between batches.\u003c\/p\u003e\n\u003cdiv class=\"drf-refs\"\u003e\n\u003ch4\u003eReferences\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eNäsholm, T., Kielland, K. \u0026amp; Ganeteg, U. (2009). Uptake of organic nitrogen by plants. \u003cem\u003eNew Phytologist\u003c\/em\u003e, 182(1), 31–48.\u003c\/li\u003e\n\u003cli\u003eColla, G., Nardi, S., Cardarelli, M., Ertani, A., Lucini, L., Canaguier, R. \u0026amp; Rouphael, Y. (2015). Protein hydrolysates as biostimulants in horticulture. \u003cem\u003eScientia Horticulturae\u003c\/em\u003e, 196, 28–38.\u003c\/li\u003e\n\u003cli\u003eColla, G., Hoagland, L., Ruzzi, M., Cardarelli, M., Bonini, P., Canaguier, R. \u0026amp; Rouphael, Y. (2017). Biostimulant action of protein hydrolysates: unravelling their effects on plant physiology and microbiome. \u003cem\u003eFrontiers in Plant Science\u003c\/em\u003e, 8, 2202.\u003c\/li\u003e\n\u003cli\u003eMarschner, P. (ed.) (2012). \u003cem\u003eMarschner's Mineral Nutrition of Higher Plants\u003c\/em\u003e, 3rd edition. Academic Press.\u003c\/li\u003e\n\u003cli\u003eCardarelli, M., El Chami, A., Iovieno, P., Rouphael, Y., Bonini, P. \u0026amp; Colla, G. (2023). Organic fertilizer sources distinctively modulate productivity, quality, mineral composition, and soil enzyme activity of greenhouse lettuce grown in degraded soil. \u003cem\u003eAgronomy\u003c\/em\u003e, 13(1), 194.\u003c\/li\u003e\n\u003cli\u003eDal Ferro, N. et al. (2022). Influence of organic and mineral fertilizers on soil organic carbon and crop productivity under different tillage systems: a meta-analysis. \u003cem\u003eAgriculture\u003c\/em\u003e, 12(4), 464.\u003c\/li\u003e\n\u003cli\u003eChojnacka, K. et al. (2020). Bio-based fertilizers: a practical approach towards circular economy. \u003cem\u003eBioresource Technology\u003c\/em\u003e, 295, 122223.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"drf-ln-panel3\" class=\"drf-panel\"\u003e\n\u003ch2\u003eHow to use liquid nitrogen fertiliser\u003c\/h2\u003e\n\u003cdiv class=\"drf-callout drf-callout-gold\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eBefore you start\u003c\/span\u003e\n\u003cp\u003eShake the bottle gently before measuring. Use a syringe or measuring cup, because guessing with nitrogen is how people end up with soft, sappy plants covered in aphids. Always dilute into water. The solution is brown; that is the organic fraction, not sediment. Before any first foliar application, spray two or three leaves and leave them 24 hours to check the plant is happy with the rate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplication rates\u003c\/h3\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eRoot drench, regular feeding\u003c\/h4\u003e\n\u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e 2 – 4 ml per litre of water  |  \u003cstrong\u003eFrequency\u003c\/strong\u003e every watering\u003c\/p\u003e\n\u003cp\u003eThe standard rate for container growing, raised beds and greenhouse crops. Use the lower end as a background feed and the upper end for leafy crops in full growth or for plants visibly short of nitrogen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eHeavier root feed, open ground and hungry crops\u003c\/h4\u003e\n\u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e 5 – 10 ml per litre of water  |  \u003cstrong\u003eFrequency\u003c\/strong\u003e weekly\u003c\/p\u003e\n\u003cp\u003eFor brassicas, sweetcorn, leeks and other heavy feeders on the plot, and for recovering ground that has been leached by a wet spell. Water into the root zone rather than over the foliage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-rate\"\u003e\n\u003ch4\u003eFoliar spray, fast correction\u003c\/h4\u003e\n\u003cp class=\"drf-rate-meta\"\u003e\u003cstrong\u003eRate\u003c\/strong\u003e 10 – 15 ml per litre of water  |  \u003cstrong\u003eFrequency\u003c\/strong\u003e 4 – 8 applications per season\u003c\/p\u003e\n\u003cp\u003eA 1% to 1.5% solution. This is a strong foliar rate, so patch-test on a few leaves first and start at 10 ml per litre. Spray to run-off in early morning or evening, never in strong sun. It is the quickest route to correcting a visible deficiency, and useful when cold or waterlogged soil is holding back root uptake.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eMixing\u003c\/h3\u003e\n\u003col class=\"drf-steps\"\u003e\n\u003cli\u003eHalf-fill the watering can or sprayer with water.\u003c\/li\u003e\n\u003cli\u003eMeasure the dose with a syringe and add it to the water.\u003c\/li\u003e\n\u003cli\u003eTop up to full volume and agitate briefly.\u003c\/li\u003e\n\u003cli\u003eApply the same day.\u003c\/li\u003e\n\u003cli\u003eRinse the sprayer through with clean water afterwards.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhen to apply through the season\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCrop\u003c\/th\u003e\n\u003cth\u003eWhen to apply\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalads and leafy greens\u003c\/td\u003e\n\u003ctd\u003eFrom establishment right through to harvest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrassicas, leeks, sweetcorn\u003c\/td\u003e\n\u003ctd\u003eWeekly through the main growing period\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTomatoes, peppers, cucumbers\u003c\/td\u003e\n\u003ctd\u003eFrom transplant until flowering begins, then taper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePotatoes\u003c\/td\u003e\n\u003ctd\u003eThrough tuber development, particularly on sandy soil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop fruit and soft fruit\u003c\/td\u003e\n\u003ctd\u003eSpring flush and early growth; stop well before harvest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLawns\u003c\/td\u003e\n\u003ctd\u003eGrowing season only, never into autumn, which softens turf before winter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrnamentals and bedding\u003c\/td\u003e\n\u003ctd\u003eThrough vegetative growth, easing off as buds form\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"drf-callout drf-callout-dark\"\u003e\n\u003cspan class=\"drf-callout-title\"\u003eWhere nitrogen does harm\u003c\/span\u003e\n\u003cp\u003eLate nitrogen on fruiting crops delays ripening and pushes leaf instead of fruit. Late nitrogen on lawns and woody plants produces soft growth that goes into winter unhardened. And sustained overfeeding produces thin-walled tissue that aphids find far more attractive. More is not better with this one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eStorage\u003c\/h3\u003e\n\u003cp\u003eCap tight, dark and dry, between 10 and 25 °C. Shelf life 18 months to 2 years. Do not let it freeze.\u003c\/p\u003e\n\u003ch3\u003eWhat to pair it with\u003c\/h3\u003e\n\u003cp\u003ePair this with the rest of the Dr Forest liquid range. \u003cstrong\u003eLiquid Seaweed Biostimulant\u003c\/strong\u003e covers alginates and natural growth promoters that a straight nutrient feed does not. \u003cstrong\u003eLiquid Gypsum\u003c\/strong\u003e supplies calcium and sulphur, the two things most liquid feeds leave out. \u003cstrong\u003eMicro 7 chelated micronutrients\u003c\/strong\u003e fills the trace element gap on long cropping runs. For a full-season plan, see the \u003ca href=\"\/pages\/instructions\"\u003eDr Forest feeding programme\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- TODO Joe: add one internal blog link here (the tomato leaf yellowing guide is the natural fit for the deficiency angle). Skill checklist requires \u003e=1 product link and \u003e=1 blog link. --\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"drf-ln-panel4\" class=\"drf-panel\"\u003e\n\u003ch2\u003eLiquid nitrogen fertiliser: common questions\u003c\/h2\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq1\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq1\"\u003eWhat is liquid nitrogen fertiliser and what does it do?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eIt is a nitrogen feed supplying 10% total N as amino acids and short peptides derived from plant material. Nitrogen builds proteins, enzymes and chlorophyll, so it is the nutrient that produces green growth and bulk. This form is taken up directly by roots and also feeds soil biology on the way in.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq2\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq2\"\u003eHow is amino acid nitrogen different from ordinary nitrogen feed?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eMineral feeds supply nitrate or ammonium, which the plant must reduce and then assimilate into amino acids before it can use them. Amino acid nitrogen arrives past that step. Research on plant protein hydrolysates also records effects on rooting, stress tolerance and the root microbiome beyond what the nitrogen content alone would explain.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq3\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq3\"\u003eCan I use it as a foliar spray?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes, at 10 to 15 ml per litre, which is a 1% to 1.5% solution, up to eight times a season. That is a strong foliar rate, so patch-test a few leaves first and start at the lower end. Spray to run-off in early morning or evening. This is the fastest way to correct a visible deficiency.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq4\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq4\"\u003eHow do I know my plants are short of nitrogen?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eUniform pale yellowing starting on the oldest, lowest leaves and working upward, with growth slowing. Nitrogen is mobile inside the plant, so it is stripped out of old leaves to supply new ones, which is why the bottom of the plant goes first. If the newest leaves are yellowing instead, look at iron or sulphur.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq5\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq5\"\u003eCan I overdo it?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eEasily, and this is the nutrient where overdoing it does the most visible damage. Excess nitrogen produces soft, thin-walled growth that aphids prefer and fungal problems exploit, delays ripening on fruiting crops and leaves woody plants unhardened going into winter. Stick to the stated rates.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq6\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq6\"\u003eWhen should I stop feeding nitrogen?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eOn fruiting crops, taper as flowering begins and hand over to a potash feed. On lawns and woody plants, stop by late summer. On leafy crops there is no need to stop, so feed to harvest.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq7\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq7\"\u003eDoes it contain sodium or chloride?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eNeither. That matters most in containers, grow bags and recirculating systems, where there is no rainfall to flush accumulated salts through the root zone.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq8\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq8\"\u003eCan I use it through a drip line or irrigation system?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eYes. Despite the high organic matter content it stays in solution and is suitable for irrigation systems and drip lines. Use the 2 to 4 ml per litre rate, agitate the stock before drawing from it, and flush the lines with clean water at the end of a feeding run.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq9\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq9\"\u003eCan I mix it with other Dr Forest liquids?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eIt combines well with seaweed and with the liquid phosphorus and potassium feeds. Patch-test if you are combining three or more products in one can.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq10\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq10\"\u003eIs it safe around children, pets and wildlife?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eIt is a nutrient solution with no pesticide content. Keep the concentrate capped and out of reach, and treated ground is fine once watered in.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq11\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq11\"\u003eIs this an organic fertiliser?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eIt is made with organic ingredients, and the nitrogen is plant-derived throughout. Dr Forest does not hold organic certification for its own products, so we say made with organic ingredients rather than certified organic.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"drf-faq\"\u003e\n\u003cinput id=\"drf-ln-faq12\" type=\"checkbox\"\u003e\u003clabel class=\"drf-faq-q\" for=\"drf-ln-faq12\"\u003eWhy is the liquid brown?\u003c\/label\u003e\n\u003cdiv class=\"drf-faq-a\"\u003e\u003cdiv\u003eThat is the 45% organic matter. A clear nitrogen solution is a mineral salt in water; this one carries plant-derived carbon alongside the nitrogen, and the colour comes with it.\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dr Forest","offers":[{"title":"500ml","offer_id":58307100115318,"sku":null,"price":13.99,"currency_code":"GBP","in_stock":true},{"title":"1 litre","offer_id":58307100148086,"sku":null,"price":21.99,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/www.drforest.co.uk\/products\/organic-liquid-nitrogen-fertiliser","provider":"Dr Forest","version":"1.0","type":"link"}