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利用中低品位磷矿生产钙镁磷肥,然后制成养分配方为12-10-8复混肥,为研究含钙镁磷肥的复混肥在作物上的肥效,在早稻上进行了田间试验。结果表明:含钙镁磷肥的复混肥处理与农民习惯施肥处理比较,早稻平均增产15.1%;与高浓度复合肥处理相比,稻谷产量不会降低;含钙镁磷肥复混肥处理均能促进早稻的生长发育,有利于促进早稻的增产。
Low-grade phosphate rock was used to produce Ca-Mg and P fertilizers, and then the fertilizer formula was formulated as 12-10-8 compound fertilizer. In order to study the fertilizer effect of compound fertilizer containing Ca-Mg and P fertilizer on crops, field experiments were conducted on early rice. The results showed that the treatment of compound fertilizer with calcium-magnesium phosphate fertilizer compared with peasants’ habitual fertilization, the average yield of early rice increased by 15.1%; the yield of rice did not decrease compared with that of high-concentration compound fertilizer; Promote the growth and development of early rice, is conducive to promoting early rice yield.