{"product_id":"calphos-soft-rock-phosphate-25-lb-bag","title":"Calphos Soft Rock Phosphate (25 lb bag)","description":"\u003cp\u003e\u003cstrong\u003eCalphos Soft Rock Phosphate is a natural, slow-release source of phosphorus and calcium that boosts soil fertility and supports strong root development.\u003c\/strong\u003e This finely ground mineral powder averages 20% P2O5 (about 3% immediately available) and 18% calcium, feeding plants gradually for up to 5 years after application. This is the 25 pound bag.\u003c\/p\u003e\n\u003ch3\u003eAt a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Natural soft rock phosphate amendment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Finely ground mineral powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalysis:\u003c\/strong\u003e About 20% P2O5 (3% immediately available), 18% calcium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 25 lb bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadcast rate:\u003c\/strong\u003e 5 lb per 100 square feet, or 1 ton per acre on deficient soils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting hole rate:\u003c\/strong\u003e 1 to 10 lb per hole by plant size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLongevity:\u003c\/strong\u003e Supplies phosphorus and calcium up to 5 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePhosphate-deficient garden and orchard soils\u003c\/li\u003e\n\u003cli\u003eRoot vegetables, fruiting plants, and flowering ornamentals\u003c\/li\u003e\n\u003cli\u003eTrees and perennials at planting time\u003c\/li\u003e\n\u003cli\u003eNatural and organic-style soil building\u003c\/li\u003e\n\u003cli\u003eLong-term, slow-release fertility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003eApply at about 5 pounds per 100 square feet before planting, or work 1 to 10 pounds into each planting hole depending on plant size. It can also be used as a top dressing through the growing season. Because it releases slowly, a single application supports phosphorus and calcium needs for several years on most crops.\u003c\/p\u003e\n\u003ch3\u003eAbout Grow Organic\u003c\/h3\u003e\n\u003cp\u003eGrow Organic supplies non-GMO seeds and natural soil amendments for growers who build fertility the sustainable way.\u003c\/p\u003e","brand":"Grow Organic","offers":[{"title":"Default Title","offer_id":50394527006998,"sku":"F729","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/5555\/8422\/files\/FT729_Calphos_Soft_Rock_Phosphate_25lbs_w_gloves.jpg?v=1766096338","url":"https:\/\/madelines.sbs\/products\/calphos-soft-rock-phosphate-25-lb-bag","provider":"Madeline's","version":"1.0","type":"link"}