Soil Moisture Requirements of Longxin Mianlong
Before applying the pesticide, it is necessary to ensure that the soil water holding rate reaches 60%~70% and lasts for more than 3~5 days. When the soil humidity is appropriate, various pathogens are sensitive to chemicals, and weed seeds begin to germinate, which is more likely to be killed by methyl isothiocyanate, a decomposition of gossypol. The control effect of perennial weeds may be poor.
Rain or flood irrigation is the best, and artificial water supplement is uneven