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磁性复合肥是一种以粉煤灰为介质经强磁场磁化制成的颗粒状复混肥料,含有氮、磷、钾和多种中微量元素。通过连续多年在大豆上进行的磁性复合肥田间试验结果表明:磁性复合肥可以改善土壤环境,增加土壤的透气性和蓄水性,能够促进大豆对养分的吸收。施用磁性复合肥750~1 050 kg/hm2就能够满足大豆的生长发育,提高作物产量,并且土壤容重在不同耕层深度(0~10 cm1、0~20 cm)中都有降低的趋势,孔隙度随着施用量的增加而变大,对土壤有较好的改良作用。施用磁性复合肥与传统施用单一无机化肥相比,投入成本低,增产幅度大,经济效益高。
Magnetic compound fertilizer is a granular compound fertilizers made of fly ash as magnetic medium and containing nitrogen, phosphorus, potassium and various trace elements. The results of magnetic compound fertilizer experiments conducted on soybean for many years showed that magnetic compound fertilizer can improve soil environment, increase soil permeability and water storage, and promote the absorption of nutrients by soybean. The application of magnetic compound fertilizer 750 ~ 1050 kg / hm2 can meet the growth and development of soybean and increase crop yield, and the soil bulk density tends to decrease at different depths (0 ~ 10 cm1 and 0 ~ 20 cm) Degree increases with the increase of the amount of application, the soil has a better improvement. Compared with the traditional application of single inorganic fertilizer, the magnetic compound fertilizer has the advantages of low input cost, large yield increase and high economic benefit.