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“三料”化肥即三料过磷酸钙,是突尼斯、摩洛哥等国生产的一种高效磷肥,肥效是普通磷肥的3—4倍,含五氧化二磷46％以上,并不含氮、钾等有效成分。它的特点是:可被作物直接吸收利用,性质稳定,呈灰色颗粒状,便于机械施用,肥效较长,在土壤中移动性小,适合各种作物和土壤施用。在碱盐地、破皮黄、白僵土中施用,效果更为显著。对麦类、谷子、糜子、玉米、高粱、蔬菜等作物,增产效果明显,对大豆、甜菜、土豆等作物增产效果更大。平均1斤“三料”肥可增产粮食8—12斤,甜
“Three materials” that is, triple-superphosphate fertilizer, is Tunisia, Morocco and other countries to produce a high-efficiency phosphate fertilizer, fertilizer efficiency is 3-4 times the ordinary phosphate fertilizer, phosphorus dioxide containing more than 46%, does not contain nitrogen and potassium Other active ingredients. It is characterized by: direct absorption of crops can be used, the nature of the stable, gray granularity, easy mechanical application, longer fertilizer, mobility in the soil is small, suitable for a variety of crops and soil applications. In alkaline salt, broken yellow skin, white stiff soil in the application, the effect is more pronounced. For wheat, millet, millet, corn, sorghum, vegetables and other crops, the yield increase effect is obvious, soybean, sugar beet, potato and other crops yield greater effect. An average of 1 kg of “three” fat fertilizer can increase grain yield of 8-12 pounds, sweet