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腐殖酸复合肥是一种含有腐殖酸及各种营养元素的颗粒肥料。为了进一步了解国产腐酸复合肥在疏菜生产上的效果,于1980—1981连续二年采用北京磷肥公司供应的辽宁省复县化工厂生产的腐殖酸氮,磷,钾复合颗粒肥(出厂说明;含腐殖酸20%,氮,磷,钾各10%).进行试验:1980年是在施基肥基础上,每亩沟施100斤复合肥与等量氮,磷,钾化肥进行对
Humic acid compound fertilizer is a kind of granular fertilizer containing humic acid and various nutrients. In order to further understand the effect of homemade fulvic acid compound fertilizer on the production of vegetables, the nitrogenous, phosphorus and potassium compound fertilizer of humic acid produced by Fuxian County Chemical Plant supplied by Beijing Phosphate Fertilizer Company was used for two consecutive years in 1980-1981 Description; containing humic acid 20%, nitrogen, phosphorus and potassium 10%) .Test: 1980 is based on the basis of fertilizer, per acre ditch facilities 100 pounds of compound fertilizer and the same amount of nitrogen, phosphorus and potassium fertilizer for