Cassava starch mainly accumulates in the middle and later stages of growth. If the nutrient level is high during this period, more starch is accumulated. Therefore, in the late and late cassava growth, multiple foliar dressings are required to increase the nutritional level of the leaves. The specific approach is as follows: During the middle and later stages of cassava growth, 0.1% magnesium sulfate, 0.2% urea, 0.3% potassium dihydrogen phosphate, 800 times humic acid active liquid fertilizer, 1000 times triacontanol, and 1500 times Sangnoxin were sprayed once every 7-10 days. The chelating fertilizer mixture was sprayed continuously for 5-6 times, and all the leaves were evenly sprayed so as to start dropping drops of water. Spray in the morning or in the afternoon or on a cloudy day. Do not spray in strong sunlight or windy weather, so as not to reduce the effect of foliar dressing. Fingerprint Tripod Turnstile,Full Height Turnstile,Automatic Flap Swing Tripod Turnstile,Full Height Swing Tripod Turnstile Shenzhen BIO Technology Co.,Ltd. , https://www.hfsecuritytech.com