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不溶性钾矿含钾砂岩、钾长石等，采用熔融热化学转化法，加入特制的转化剂，使钾矿石中的结构钾（无效钾）变成可被植物吸收的有效钾，从而形成一种含有效钾、镁、铁、硅、硫等多种元素的无机螯合态肥料，ｗ（Ｋ２Ｏ）８％～１０％、ｗ（ＭｇＯ）１０％左右，钾的转化率可达９５％以上。钾镁肥经连续４年的农田试验和示范，可使农作物增产１０％～３０％；特别对烟草、水果、蔬菜有明显效果。
Insoluble potassium potassium-containing sandstone, potassium feldspar, etc., by melting thermochemical conversion method, adding a special converter, the potassium in the structure of potassium (potassium) into potassium can be absorbed by plants to form a The inorganic chelated fertilizer containing various elements such as potassium, magnesium, iron, silicon and sulfur has the conversion rate of more than 95% of K (K2O) about 8% -10% and about 10% of w (MgO). After 4 years of trial and demonstration of farmland, potassium and magnesium fertilizer can increase the yield of crops by 10% ~ 30%, especially for tobacco, fruits and vegetables.