{"product_id":"sulfate-of-potash-magnesia-0-0-22","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":44274210046040,"sku":"018227120623","price":17.99,"currency_code":"USD","in_stock":true},{"title":"2 Pounds","offer_id":44274210078808,"sku":"018227120630","price":20.99,"currency_code":"USD","in_stock":true},{"title":"3 Pounds","offer_id":44274210111576,"sku":"018227120647","price":23.99,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":44274210144344,"sku":"701748874020","price":31.99,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":44274210177112,"sku":"701748874440","price":42.99,"currency_code":"USD","in_stock":true},{"title":"20 Pounds","offer_id":44274210209880,"sku":"701748873740","price":49.99,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":44274210242648,"sku":"018227120654","price":61.99,"currency_code":"USD","in_stock":true},{"title":"50 Pounds (or 2 x 25 pound bags)","offer_id":44274210275416,"sku":"018227120661","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/9165\/8584\/files\/s-l500.jpg?v=1782322942","url":"https:\/\/gridwiseliving.com\/products\/sulfate-of-potash-magnesia-0-0-22","provider":"Gridwise Living","version":"1.0","type":"link"}