MySheen

Skillful use of Fertilizer to Control crop pests

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, 1. Nitrogen fertilizer: commonly used nitrogen fertilizer, such as urea, ammonium bicarbonate, ammonia, etc., can stimulate, corrode and fumigate pests. It is effective to control small and weak pests such as aphids and red spiders. During the occurrence of pests, 2% urea solution or 1% ammonium bicarbonate solution is sprayed outside the root, once every 7 days, continuously 2 Murray 3.

1. Nitrogen fertilizer: commonly used nitrogen fertilizer, such as urea, ammonium bicarbonate, ammonia, etc., can stimulate, corrode and fumigate pests. It is effective to control small and weak pests such as aphids and red spiders. During the occurrence of pests, 2% urea solution or 1% ammonium bicarbonate solution was sprayed outside the root, once every 7 days, for 3 times in a row, with good control effect. two。 Phosphate fertilizer: spraying phosphate fertilizer on tomato, corn and cotton can control green insects, cotton bollworm and so on. 3. Potash fertilizer: 50kg with 10kg plant ash to water, soak for one day and night, spray with filtrate to control aphids. 4. Calcium fertilizer: the harm of corn borer and bean pod borer can be avoided by applying silicon and calcium fertilizer 30--40kg every 667m2 for corn and soybean, and the harm of armyworm can be reduced by applying 20--30kg every 667m2 to wheat. In addition, spraying with 1% urea and 1% dichlorvos EC can kill red spiders, aphids and other pests on vegetables.

 
0