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第三讲:无土栽培营养液的配制 1.化合物钾的化合物:在无土栽培中常用的钾肥为硝酸钾(KNO_3),其中除钾外,还含有氮。再有磷酸二氢钾(KH_2PO_4),其中除钾外,还含有磷,在营养液中不能有大量的氯化钾(KCJ)和碳酸钾(K_2CO_3)存在。磷化合物:在无土栽培中,最好的磷来源为磷酸铵,其中包括磷酸二氢铵(NH_4
Lecture 3: Preparation of soilless culture nutrient solution 1. Compound Potassium compound: Potassium fertilizer commonly used in soilless culture is potassium nitrate (KNO 3), which contains nitrogen in addition to potassium. Further potassium dihydrogen phosphate (KH_2PO_4), which in addition to potassium, but also contains phosphorus in the nutrient solution can not have a lot of potassium chloride (KCJ) and potassium carbonate (K_2CO_3) exists. Phosphorus compounds: In soilless culture, the best source of phosphorus is ammonium phosphate, which includes ammonium dihydrogen phosphate (NH 4