复盐型硝酸钾钙镁复合肥对马铃薯产量及效益的影响

Effect of Double Salt Potassium Nitrate Calcium Magnesium Compound Fertilizer on Yield and Economic Benefit of Potato

采用大田试验研究了球状复盐型硝酸钾钙镁复合肥对马铃薯产量和经济效益的影响。结果表明:按照每0.067 hm^(2)马铃薯生长中后期喷施3次复盐型硝酸钾钙镁肥30 g兑水15 kg喷施,可显著提高马铃薯产量和产值,喷施复盐型硝酸钾钙镁肥料马铃薯产量比不喷施增产17.1%,净增收374.8元/0.067 hm^(2),比喷施等量清水增产13.3%,净增收341.7元/0.067 hm^(2)。因此,硝酸钾钙镁复合肥在马铃薯生产中具有极大的推广应用价值。

Field experiments were conducted to study the effects of spherical compound salt potassium calcium magnesium nitrate fertilizer on potato yield and economic benefit.The results show that spraying three times of double salt potassium calcium magnesium nitrate fertilizer 30 g and 15 kg water spraying each time,in the middle and late stages of potato growth can significantly increase potato yield and output value.Spraying double salt potassium calcium magnesium nitrate fertilizer increases potato yield by 17.1%compared with no spraying,and the net increase is 374.8 yuan/0.067 hm^(2).Compared with spraying the same amount of water,the increase was 13.3%,and the net increase was 341.7 yuan/0.067 hm^(2).Therefore,potassium calcium magnesium nitrate compound fertilizer has great application value in potato production.