How to treat the dried leaves of beans suddenly?

Soon after the wheat harvest, some beans will appear dry leaf deformities. The author found that most of these plots are close to the corn field, which is caused by the herbicide drift in the corn field. The drift of spraying herbicide in corn field is mainly affected by the wind, and the greater the wind is, the farther the drift is. Many vegetable farmers regard this kind of drug damage as disease control, which not only fails to achieve the desired control effect, but also delays the opportunity of control. The symptoms showed that after spraying herbicides in the corn field, the old leaves of beans were dried up at first, and the stems were still green. With the growth of beans, the new leaves were deformed and the leaves were wrinkled and uneven. If the bean is in the podding stage, there will be falling flowers. The plant growth is poor, which seriously affects the yield. Rinsing with clean water: the period for farmers to spray herbicides is generally 7-10 days. During this period, bean stems and leaves should be often sprayed with water to reduce herbicide residues on bean stems and leaves. Timely topdressing: ammonium bicarbonate or urea is the main topdressing, and it can also be properly combined with some phosphate and potash fertilizer. The amount of topdressing should be determined according to the severity of drug damage and the growth of beans. Adequate watering: timely watering after topdressing to promote fertilizer effect as soon as possible and reduce the relative concentration of harmful substances in beans. Foliar spraying plant growth regulator and foliar fertilizer: the mixed spraying effect of brassine 7500 times liquid and foliar fertilizer was better. According to the degree of drug damage, spray once every 10-15 days, can be sprayed for 1-3 times.