Soybeans entered the late growth stage, and the roots became old. After the watering, the humidity was high and the ground temperature was decreased. The conduction function of the roots was inhibited and affected, and the decline of the root conduction was accelerated, which accelerated the aging process and decline of the soybean roots, resulting in partial loss of conduction function. At the same time, the relative humidity is too large, the root system is also easy to get soybean root rot and cause the whole plant to die dry. However, some water is still needed in this period to promote the accumulation and maturation of soybeans and increase the seed-setting rate. Drying during the grain stage adversely affects the maturity of the top and upper soybean pods. This period should be prudent when it comes to drought and watering. In order to avoid causing some branches to die before the yellow or even death, thus reducing production.

Soybean irrigation should pay attention to the following points:

1, irrigation should be carried out before the drum grain. At this time, the soybean roots were not all in the aging stage, and their resistance to low temperature, humidity, and disease resistance was strong. After irrigation, they were both beneficial to the rapid development of soybean pods and grains, and were not easy to cause root rot. The grain was full and the yield was increased. It was soybeans. The key period of production increase.

2, to choose sprinkler time. If the weather temperature is high, avoid high temperature watering (except river water), and watering should be selected in the morning and evening to reduce the temperature difference between soybean and well water.

3, late irrigation should reduce or shorten the irrigation time, minimize the high humidity of the soil. When soybeans enter the drum grain, they should be treated with irrigation water and well water should pay attention to the temperature and humidity so as to avoid causing root rot in soybeans. When the temperature is high, the irrigation should be connected with the humidity in the soil. When the temperature is low, slow water infiltration with small water, the surface does not produce runoff and water is appropriate, to meet the needs of soybean grain.

Metallurgical Chemicals

Metallurgical Chemicals,Metallurgical Processing Chemical,Calcium Cyanamide Granule,Mining Metallurgical Chemical

Ningxia Darong Chemicals & Metallurgy Co., Ltd. , https://www.darong-cyanamide.com