根外喷施钾肥对遵椒2号生长发育及产量的影响

针对生产上钾肥施用量不足或施用不合理,影响辣椒产量、质量进一步提高的问题,研究了根外追施钾肥对遵椒2号生长发育、产量及病虫害发生危害的影响。结果表明:在辣椒门花期、第三层开花期、第七层开花期叶面喷施硫酸钾、硫酸钾 尿素、磷酸二氢钾较喷施尿素和清水能加快发育,促进植株生长,提高产量和品质,减少病虫害发生,其中以浓度为0.2%硫酸钾 0.2%尿素和0.2%磷酸二氢钾溶液进行喷施效果最显著。

Effects of Potash Leaf Spray Application on Yield and Growth of Hot Pepper Zunjiao 2

This study indicates that the leaf spray application of potash to Zunjiao 2 can promote its grouth,reduce pests and increase its yield by spraying potassium sulfate,potassium sulfate mixed with urea,and potassium dihydrogen phosphate at the phases of the first,third and seventh blossom.Specifically,to spray 0.2% potassium sulfate mixing 0.2% urea,and 0.2% potassium dihydrogen phosphate has obvious effect.