{"title":"Citrus \u0026 Fruit Trees","description":"\u003cp\u003eComplete nutrition for citrus, avocado, stone fruit, and orchard trees — from the balanced seasonal feeding that drives fruit production to the micronutrient corrections trees signal through their leaves. Citrus \u0026amp; Avocado Fertilizer 14-6-4 anchors the program with the nitrogen-forward ratio these evergreen producers want, while the chelated micronutrient line handles what trees are famous for running short on: iron for the pale, yellowing new growth of chlorosis, zinc for small-leaf rosetting in stone fruit, manganese and copper for the deficiencies alkaline California soils create. Elemental Sulfur brings pH down where chlorosis keeps returning. Every product is CDFA registered, third-party tested for heavy metals, and made in our FDA-registered Madera, California facility. Trees tell you what they need through their leaves — this collection is how you answer.\u003c\/p\u003e","products":[{"product_id":"organic-azomite-powder-fertilizer","title":"Organic Azomite Powder Fertilizer 0-0-0.2 (Micronized)","description":"\u003cp\u003eOrganic Azomite 0-0-0.2 Micronized is an OMRI Listed natural mineral soil amendment mined from a single hydrated sodium calcium aluminosilicate (HSCAS) deposit in central Utah — volcanic ash that settled into a mineral-rich seabed roughly 30 million years ago. One product supplies approximately 70 trace and ultra-trace elements, including silica, calcium, magnesium, iron, manganese, zinc, boron, and rare earth elements.\u003c\/p\u003e\n\u003cp\u003eTrace minerals act as cofactors for the enzymatic reactions behind plant metabolism — the work that standard N-P-K fertilizers do not address. Azomite is a long-cycle remineralizer best suited to soils depleted by years of intensive cropping and irrigation, with cumulative benefits typically seen over two to three growing seasons of regular use. It works across vegetable gardens, fruit trees, lawns, and greenhouse potting mixes, and is micronized to roughly −200 mesh for even broadcast distribution and good soil contact.\u003c\/p\u003e\n\u003cp\u003eAzomite is a soil-building amendment, not a primary fertilizer — it supplies almost no nitrogen, phosphorus, or potassium, so it should be paired with a complete fertilizer program. It is largely insoluble and is not intended as a hydroponic reservoir nutrient. It is also approved as a livestock and poultry feed supplement, a separate use that should follow species-specific feed guidance. Work it into the soil, water in, minimize dust when handling, and store sealed and dry.\u003c\/p\u003e\n\u003cp\u003eOMRI Listed and independently lab tested, with heavy metal results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":1476115841,"sku":"701748874143","price":19.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":1476115905,"sku":"701748874150","price":22.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":1476115969,"sku":"701748874167","price":24.99,"currency_code":"USD","in_stock":true},{"title":"4 Pounds","offer_id":1476116033,"sku":"701748874174","price":29.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1476116097,"sku":"701748874181","price":31.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1476116161,"sku":"701748874211","price":41.99,"currency_code":"USD","in_stock":true},{"title":"15 Pounds","offer_id":1476116225,"sku":"701748874280","price":45.99,"currency_code":"USD","in_stock":true},{"title":"20 Pounds","offer_id":1476116289,"sku":"018227120111","price":49.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1476116353,"sku":"0701748873993","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/products\/Rose_and_Flower_Fertilizer.JPG?v=1778389555"},{"product_id":"organic-bone-meal-fertilizer","title":"Organic Bone Meal Fertilizer 3-15-0","description":"\u003cp\u003eOrganic Bone Meal 3-15-0 is a steam-processed bovine bone meal soil amendment supplying 15% available phosphate (P₂O₅) and 24% calcium — one of the highest organic calcium concentrations in a single amendment — plus a small amount of slow nitrogen.\u003c\/p\u003e\n\u003cp\u003ePhosphorus drives root development, flowering, and fruit set, and in bone meal it is released gradually over roughly 3 to 4 months as soil microbes break down the bone matrix — a sustained curve rather than the spike-and-tail of fast-release synthetic phosphates, with low burn risk when used as directed. The 24% calcium supports cell-wall strength and root development. Bone meal is a go-to amendment for flowering bulbs, transplants, root crops, fruiting vegetables, roses, and fruit trees, worked into the soil at planting.\u003c\/p\u003e\n\u003cp\u003eIt is a soil amendment, not a water-soluble product — it cannot be used in hydroponic systems or as a foliar spray, and it performs best in soils at or below pH 7.0 with active microbial life; above roughly pH 7.5 phosphate availability drops. Because the 24% calcium is alkaline, it is not suited to acid-loving plants such as azaleas, rhododendrons, and blueberries. Always incorporate it into the soil rather than leaving it on the surface, and store sealed and dry.\u003c\/p\u003e\n\u003cp\u003eRepackaged from OMRI Listed® organic, non-GMO source material. CDFA registered and third-party lab tested for heavy metals, with results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"2 Pounds","offer_id":1476319105,"sku":"018227120166","price":19.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1476319297,"sku":"726670283412","price":29.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1476319361,"sku":"701748873832","price":47.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1476319553,"sku":"726670283429","price":76.99,"currency_code":"USD","in_stock":true},{"title":"50 Pounds (or 2 x 25 pound bags)","offer_id":1476319617,"sku":"018227120173","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/files\/Organic_Bone_Meal_Fertilizer_3-15-0_2_Pounds_157347cc-0529-4c86-a259-522efa80aabf.png?v=1781143127"},{"product_id":"dolomite-lime","title":"Dolomite","description":"\u003cp\u003eDolomite Lime is a finely ground natural limestone soil amendment supplying 22.7% calcium and 11.8% magnesium — two nutrients in a single application — while gradually raising the pH of acidic soil. Unlike calcitic lime, which delivers calcium alone, dolomite is a double-carbonate mineral that supplies both calcium and magnesium in a roughly 2:1 ratio close to what most plants take up.\u003c\/p\u003e\n\u003cp\u003eCalcium supports cell-wall strength and root development; magnesium is the central atom of every chlorophyll molecule. Dolomite neutralizes soil acidity through a carbonate reaction, and because the magnesium fraction dissolves more slowly than calcium carbonate, it buffers pH gradually over months rather than producing a rapid spike — a more forgiving curve that is less likely to overshoot the target range. It suits vegetable gardens, lawns, fruit trees, flower beds, compost piles, and peat-based container mixes.\u003c\/p\u003e\n\u003cp\u003eDolomite works best applied several weeks before planting and worked into the soil; a soil test is the best way to set the correct rate. It is not appropriate for acid-loving plants such as blueberries, azaleas, rhododendrons, and potatoes, which prefer a lower soil pH. It is sold as an agricultural soil amendment, not as an animal feed or livestock supplement. Minimize dust when handling, wear eye protection, and store sealed and dry.\u003c\/p\u003e\n\u003cp\u003eCDFA registered, made in the USA, and third-party lab tested for heavy metals, with results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":41067942547,"sku":"018227120234","price":19.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":14248129031,"sku":"018227120241","price":21.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":41068037651,"sku":"018227120258","price":24.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1556587201,"sku":"701748873627","price":31.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1556587265,"sku":"701748873658","price":43.99,"currency_code":"USD","in_stock":true},{"title":"20 Pounds","offer_id":1556587393,"sku":"701748873665","price":54.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1556587457,"sku":"018227120265","price":61.99,"currency_code":"USD","in_stock":true},{"title":"50 Pounds (or 2 x 25 pound bags)","offer_id":1556587521,"sku":"018227120272","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/products\/Dolomite_Lime_Organic.JPG?v=1711585594"},{"product_id":"epsom-salt","title":"Epsom Salt USP Grade (Magnesium Sulfate) — Bath, Foot Soak \u0026 Garden","description":"\u003cp\u003eGreenway Biotech Epsom Salt is pure USP-Grade magnesium sulfate heptahydrate (MgSO\u003csub\u003e4\u003c\/sub\u003e·7H\u003csub\u003e2\u003c\/sub\u003eO) - the same pharmaceutical-purity specification used for pharmaceutical excipients. Fine-grain crystals dissolve quickly in warm water with no stirring or gritty residue, making it well suited to relaxing bath soaks, foot soaks, and DIY body scrubs.\u003c\/p\u003e\n\n\u003cp\u003eBeyond the bathtub, the same bag works in the garden as a fast-acting source of magnesium and sulfur for plants showing confirmed magnesium deficiency - tomatoes, peppers, roses, citrus, and leafy greens are the most common responders. Available in 2 lb, 5 lb, 10 lb, and 25 lb resealable bags.\u003c\/p\u003e\n\n\u003cp\u003eSourced within the United States and packaged at our family-owned Madera, California facility - registered with the FDA. Third-party lab tested and screened for heavy metals; results consistently well below required limits. 100% magnesium sulfate with no added fragrance, dye, filler, or preservative. External use only. Backed by a 90-day money-back guarantee.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":1556659521,"sku":"0701748873580","price":17.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":1556659649,"sku":"0701748873894","price":21.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1556659777,"sku":"0701748874013","price":24.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1556659841,"sku":"0701748873801","price":33.99,"currency_code":"USD","in_stock":true},{"title":"20 Pounds","offer_id":1556659969,"sku":"0726670283368","price":41.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1556660033,"sku":"0726670283344","price":51.99,"currency_code":"USD","in_stock":true},{"title":"2 X 25 Pounds","offer_id":30755152232483,"sku":"726670283337","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/files\/Organic_Epsom_Salt_-_Magnesium_Sulfate_USP_grade_25_Pounds.png?v=1781065239"},{"product_id":"organic-ferrous-sulfate","title":"Organic Ferrous Sulfate (Iron Sulfate) | 20% Iron (Fe)","description":"\u003cp\u003eFerrous Sulfate 20% Iron is a high-purity ferrous sulfate heptahydrate (FeSO₄·7H₂O) supplying 20% soluble iron and 12% sulfur — a fast-acting, versatile single-ingredient amendment for correcting iron deficiency, supporting soil pH reduction, and managing lawn moss.\u003c\/p\u003e\n\u003cp\u003eIron deficiency (interveinal chlorosis — yellow tissue between green veins on new leaves) is usually a solubility problem rather than a supply problem: above roughly pH 7.0, soil iron converts to forms roots cannot absorb. Ferrous sulfate supplies iron already in the plant-available Fe²⁺ form, so foliar applications can produce visible green-up in new growth within days, and the oxidation chemistry that follows soil application gradually lowers root-zone pH — faster than elemental sulfur, which depends on slower microbial activity. It dissolves completely for foliar spray and soil application and also serves as an iron source for lawn moss management.\u003c\/p\u003e\n\u003cp\u003eFerrous sulfate works best in acidic to neutral soils; in persistently alkaline or free-lime calcareous soils a chelated iron source is more reliable, and it is not preferred for recirculating hydroponic systems, where Fe²⁺ precipitates out of solution. Important handling note: ferrous sulfate stains concrete, brick, stone, and fabric rust-brown on contact — sweep granules off hardscape immediately and rinse spray drift before it dries. Apply foliar sprays in cool conditions, wear gloves, and store sealed and dry, away from metal containers.\u003c\/p\u003e\n\u003cp\u003eCDFA registered and third-party lab tested for heavy metals, with results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":1556793985,"sku":"701748874129","price":19.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":1556794049,"sku":"701748874136","price":22.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":1556794113,"sku":"018227120289","price":26.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1556794241,"sku":"701748874198","price":31.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1556794305,"sku":"701748874204","price":49.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1556794561,"sku":"018227120302","price":79.99,"currency_code":"USD","in_stock":true},{"title":"50 Pounds (or 2 x 25 pound bags)","offer_id":1556794625,"sku":"018227120296","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/files\/Ferrous_Sulfate_Fertilizer_-_Heptahydrate_-_20_Fe_-_1_Pound.png?v=1782246058"},{"product_id":"chelated-iron-edta","title":"Chelated Iron EDTA Fertilizer","description":"\u003cp\u003eChelated Iron EDTA 13% is a 100% water-soluble micronutrient fertilizer delivering 13.2% EDTA-chelated iron — one of the highest iron concentrations among chelated iron forms — formulated to prevent and correct iron deficiency (interveinal chlorosis) in gardens, raised beds, containers, and hydroponic systems.\u003c\/p\u003e\n\u003cp\u003eIron is essential for chlorophyll synthesis and photosynthesis, and deficiency shows first as yellowing between still-green veins on the newest leaves. Iron is often abundant in soil yet chemically unavailable: above roughly pH 6.5 it converts to insoluble forms roots cannot absorb. The EDTA chelate wraps each iron ion in a stable ring that shields it from reacting with soil calcium, phosphate, and carbonate, keeping iron plant-available through the pH 4.0–7.0 range — where unprotected iron sulfate can lock up within hours. It dissolves cleanly for foliar sprays, soil drenches, fertigation, and hydroponic reservoirs.\u003c\/p\u003e\n\u003cp\u003eEDTA is effective only in acidic to neutral conditions: confirm soil or solution pH before applying, and for soils above roughly pH 7.0–7.5 a DTPA or EDDHA chelate performs better. Apply foliar sprays in cool conditions, avoid drought-stressed plants, wear gloves and eye protection, and store sealed and dry.\u003c\/p\u003e\n\u003cp\u003eCDFA registered and third-party lab tested for heavy metals, with results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":1556850497,"sku":"726670283399","price":29.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":1556850561,"sku":"726670283450","price":45.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1556850753,"sku":"701748873641","price":95.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":7275787681827,"sku":"018227121484","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/files\/Chelated_Iron_EDTA_Fertilizer_1_Pound_380bbfce-b776-4ec4-9f71-ef33a2d56fc6.png?v=1781046663"},{"product_id":"monopotassium-phosphate-mkp-0-52-34","title":"Monopotassium Phosphate 0-52-34","description":"\u003cp\u003eMonopotassium Phosphate (MKP) 0-52-34 is a nitrogen-free, 100% water-soluble P-K fertilizer — a single technical-grade crystal (potassium dihydrogen phosphate) supplying 52% available phosphate (P₂O₅) and 34% soluble potash (K₂O) with no nitrogen and no fillers.\u003c\/p\u003e\n\u003cp\u003eThe zero-nitrogen profile is what defines MKP: at flowering and fruit set it delivers concentrated phosphorus and potassium without pushing new vegetative growth, which is why it is a standard bloom-phase source in commercial hydroponic and fertigation programs. Phosphorus supports energy transfer, root development, and flower initiation, while potassium supports fruit size, sugar movement, and post-harvest quality. MKP also has a low salt index, making it usable as a foliar spray at concentrations that would burn most other phosphate sources.\u003c\/p\u003e\n\u003cp\u003eIt dissolves completely with no residue and works in foliar sprays, drip and field fertigation, and recirculating hydroponic systems. The one essential rule: phosphate and calcium should never be combined in a concentrated stock tank, as they form an insoluble precipitate — keep MKP and calcium-containing fertilizers in separate stock tanks and combine them only in the dilute stream. Spray in cool hours, and store sealed and dry.\u003c\/p\u003e\n\u003cp\u003eCDFA registered and third-party lab tested for heavy metals, with results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":1557347585,"sku":"701748874389","price":29.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":1557347649,"sku":"701748873702","price":39.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":1557347713,"sku":"018227120739","price":49.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1557347841,"sku":"701748874372","price":59.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1557347905,"sku":"701748874051","price":129.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1557348097,"sku":"018227120753","price":234.99,"currency_code":"USD","in_stock":true},{"title":"50 Pounds (or 2 x 25 pound bags)","offer_id":1557348161,"sku":"018227120760","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/files\/Monopotassium_Phosphate_0-52-34_Fertilizer_1_Pound.png?v=1781325028"},{"product_id":"sulfate-of-potash-magnesia","title":"Sulfate of Potash Magnesia 0-0-22","description":"\u003cp\u003eK-Mag Fertilizer 0-0-22 (sulfate of potash magnesia, also called langbeinite) is a naturally mined mineral fertilizer that delivers three nutrients in a single soil-applied product: 22% soluble potash (K₂O), 11% magnesium, and 22% sulfur, with less than 2.5% chloride and no nitrogen.\u003c\/p\u003e\n\u003cp\u003ePotassium supports fruit size, sugar movement, and stress tolerance; magnesium is the central atom of every chlorophyll molecule; and sulfur is required for protein synthesis and enzyme function. The low chloride content makes K-Mag well suited to chloride-sensitive crops such as potatoes, tomatoes, peppers, berries, and tobacco, and the absence of nitrogen makes it useful for late-season feeding during fruit development. Because langbeinite is less soluble than refined potassium salts, it dissolves gradually as soil moisture moves through the root zone, providing nutrient availability over weeks.\u003c\/p\u003e\n\u003cp\u003eK-Mag is a soil-applied fertilizer for vegetables, fruit trees, berries, field crops, and pastures — broadcast, top-dress, or side-dress, then water in. It is not fully water-soluble and is not intended for foliar spraying or recirculating hydroponic systems. Keep the product away from direct stem and trunk contact, and store sealed and dry.\u003c\/p\u003e\n\u003cp\u003eCDFA registered and third-party lab tested for heavy metals, with results consistently well below required limits.\u003c\/p\u003e","brand":"Greenway Biotech, Inc.","offers":[{"title":"1 Pound","offer_id":1558061825,"sku":"018227120623","price":17.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":1558061889,"sku":"018227120630","price":20.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":1558061953,"sku":"018227120647","price":23.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":1558062081,"sku":"701748874020","price":31.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":1558062145,"sku":"701748874440","price":42.99,"currency_code":"USD","in_stock":true},{"title":"20 Pounds","offer_id":1558062273,"sku":"701748873740","price":49.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":1558062337,"sku":"018227120654","price":61.99,"currency_code":"USD","in_stock":true},{"title":"50 Pounds (or 2 x 25 pound bags)","offer_id":1558062401,"sku":"018227120661","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/0900\/products\/s-l500.jpg?v=1711585927"},{"product_id":"organic-elemental-sulfur-powder","title":"Organic Elemental Sulfur Powder","description":"\u003cp\u003eOrganic Elemental Sulfur Powder is a CDFA-registered, finely milled elemental sulfur (≥98% S) for lowering soil pH and supplying sulfur as a plant nutrient. The fine particle size gives soil bacteria more surface area to colonize, which speeds the conversion to plant-available sulfate.\u003c\/p\u003e\n\u003cp\u003eElemental sulfur is not directly acidic — soil bacteria oxidize it into sulfuric acid, which gradually lowers soil pH over a period of months. This makes it well suited to acid-loving plants such as blueberries, azaleas, rhododendrons, and hydrangeas, and to acidifying alkaline lawns and beds. Sulfur is also the fourth most-needed plant nutrient after nitrogen, phosphorus, and potassium, supporting protein synthesis and chlorophyll production, with deficiencies increasingly common on sandy and low-organic-matter soils.\u003c\/p\u003e\n\u003cp\u003eBecause conversion is biological, results are gradual and depend on warm, moist, well-aerated soil; calcareous (free-lime) soils resist acidification. Test soil pH before applying, do not exceed recommended single-application rates, and retest before reapplying. 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It is one of the most concentrated chloride-free potassium sources available.\u003c\/p\u003e\n\u003cp\u003ePotassium regulates water movement, enzyme activity, and sugar transport into developing fruit, supporting fruit size, color, firmness, and storage quality. The chloride-free chemistry makes this product well suited to quality-sensitive and chloride-sensitive crops such as tomatoes, peppers, berries, grapes, potatoes, citrus, and tobacco, and to recirculating hydroponic systems where chloride would otherwise accumulate. The 17% sulfur is supplied as plant-available sulfate, supporting amino acid synthesis without a separate amendment.\u003c\/p\u003e\n\u003cp\u003eIt dissolves cleanly for soil, foliar, fertigation, and hydroponic use — keep it in Tank B, separate from calcium-containing fertilizers, since combining them in concentrated stock causes precipitation. 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Each pound delivers 61% available phosphate (P₂O₅) and 12% ammoniacal nitrogen, dissolving completely with no residue.\u003c\/p\u003e\n\u003cp\u003ePhosphorus supports root development, flowering, and fruit set, and the ammonium-form nitrogen helps acidify the root zone to keep phosphate plant-available. Because it dissolves clear without clogging emitters, MAP 12-61-0 is engineered for drip irrigation, fertigation, hydroponic reservoirs, banded liquid starter applications, and foliar correction. Its mildly acidic solution makes it especially useful on alkaline and hard-water soils where phosphorus would otherwise lock up.\u003c\/p\u003e\n\u003cp\u003eThis is the water-soluble grade; for dry broadcast on fields, lawns, and garden beds, the granular MAP 11-52-0 grade is the appropriate choice. 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