红薯叶面施肥增产增收试验

红薯叶面施肥试验研究结果表明：在红薯茎叶封垄期前开始喷施,每隔7-10 d根据天气情况连续喷施3次。用叶面肥高钾营养素、磷酸二氢钾、肽蛋白、沼液分别处理红薯后,可显著提高红薯产量;高钾营养素、磷酸二氢钾、肽蛋白分别处理红薯后,可显著提高红薯商品薯率,而以肽蛋白和高钾营养素效果最好。高钾营养素、磷酸二氢钾、肽蛋白、沼液叶面肥均可增加红薯的纯收入,可以在生产上推广应用,但以肽蛋白、高钾营养素为最佳。

Test on Foliar Fertilizer Increase Production of Sweet Potato

The result of sweet potato foliar fertilization experiment show that spraying foliar fertilizer before ridge closure period of sweet potato,according to the weather conditions,every 7~10 days spraying fertilizer three times continuously.With foliar potassium nutrients,potassium dihydrogen phosphate,peptide proteins,biogas slurry processing sweet potato respectively,the yield may significantly increase,The peptide protein and potassium nutrients have the best treatment effect to increase commodity potato rate significantly, The potassium nutrients, potassium dihydrogen phosphate, peptide protein, biogas slurry all could increase the sweet potato foliar net income, so they can be widely applied in production, The peptide protein and potassium nu- trients are the best choices.