What should watermelons pay attention to when using herbicides?

Watermelon herbicide application should pay attention to what? In order to reduce and prevent the mistakes of chemical herbicide application in watermelon, the following problems should be paid attention to in application technology. 1. Correct choice of herbicide. There are many kinds of herbicides available in watermelon production. The most commonly used herbicides are 48% trifluralin EC, 25% herbicide ether WP, 33% benethapyr EC, 48% dinoseb EC, 12.5% chlorpyrifos EC, 15% fenvalerate EC, 48% lasso EC, 10% clofenac EC, etc. Second, strictly control the dosage. 48% trifluralin 75- 125ml/mu, 25% benazox 100- 150g/mu, 33% benazox 80- 130ml/mu, 48% dinoseb 200ml/mu, 12.5% gaicao 65- 150ml/mu, 15% stable killing 75- 130ml/mu, 15% fine killing 50- 60ml/mu, 48% lasso 150- 200ml/mu, 10% clopramide 65-100 ml per mu. 40-50 kg of water are mixed respectively, and sprayed on the surface layer of soil before watermelon transplanting. Among them, trifluralin is easy to decompose after seeing sunlight. After spraying, it should be evenly raked by tooth rake to a depth of 5 cm, so as to give full play to its efficacy. 3. Flexible application according to place and time. The effect of herbicide application on watermelon is closely related to ecological environment. For example, herbicide application on sandy loam soil is faster than clay soil, but it is safer after application in clay soil. It is necessary to accurately master the dosage according to the soil. When the temperature is above 20℃, the effect of weeding is better. When the temperature is not high in spring and autumn, the dosage should be increased appropriately. When the temperature is high in summer, the dosage should be reduced. When the soil moisture is good, the weed killing efficiency is high, and when the soil moisture is poor, the weed killing effect decreases. Click to get mass herbicide application technology Click to get mass pesticide application technology Click to get mass watermelon planting technology