How to manage soybeans in bad weather and how to plant soybeans.

This year, the drought and flood disasters in China are more serious, with more extreme weather. The phenomenon of waterlogging in the south and drought in the north is obvious, which is very unfavorable for soybean growth. Soybean is the main cash crop in China, and it is cultivated in most areas. Now is the critical period of soybean growth. Due to the influence of weather, it has a great influence on the yield and quality of soybean. So at this time, how to manage soybeans well to ensure the yield?

Check and clean three ditches to eliminate water in the field.

In order to ensure the smoothness of the three ditches, improve the drainage efficiency and prevent the recurrence of waterlogging disasters, it is necessary to match the three ditches, remove the soil in the ditches, ensure the smoothness of the three ditches and improve the drainage efficiency. In order to reduce the soil water holding capacity of soybean field, the accumulated water in the soil should be removed in time. It is necessary to quickly organize elite troops to eliminate stagnant water in the fields, dredge rivers, open large and small drainage valves, and clean up all kinds of floods. Important rivers should be managed by designated personnel. At the end of the rainstorm, the valve should be closed in time to maintain a certain water level to ensure the later farmland water and other water use.

Timely check seedlings, thinning seedlings, transplanting or replanting.

According to the varieties and characteristics of local crops, ensure sufficient seedling density. According to the present situation of seedlings, the seedlings should be inspected, thinned and fixed in time to cultivate strong seedlings; In order to ensure that there is no shortage of seedlings in a large area, transplanting or replanting should be carried out in rainy days.

Weed in time to prevent grass shortage

In order to prevent the growth of weeds in the field after continuous rainfall, we should seize the gap without rain and choose appropriate herbicides for chemical weeding according to crop types. Weeds around all kinds of crop fields are parasitic places for many kinds of diseases and insect pests, especially dry land insects such as spotted bees, smelly bedbugs, Bemisia tabaci and so on. Therefore, it is necessary to use mechanical and chemical weeding techniques to clean them carefully. They like to breed in the weeds near the fields very much. In order to eliminate most monocotyledonous and dicotyledonous weeds in the field, we should make full use of weed stem and leaf treatment agent and adopt the method of mixing herbicide with fomesafen. When spraying, strictly follow the instructions and control the dosage.

Appropriate topdressing

After waterlogging, soil nutrients are easy to lose. Timely and appropriate topdressing has a positive effect on crop growth and recovery. After water removal in the field, about 5 kilograms of urea should be applied per mu. In order to promote the recovery of local stiff seedlings, it is necessary to carry out intertillage management or spray foliar fertilizer and regulator.

Control all kinds of pests and diseases in time.

After the flood, farmland moisture, soil moisture and air humidity are all high, and crops' waterlogging tolerance is weak. Susceptible to a variety of root diseases. According to the specific situation, fungicides such as carbendazim and azoazolin can be used for control. Generally speaking, most pesticides and fungicides have good control effect when there is no rain within 5 hours after use. You can refer to the comparison table of mixed use of pesticides and fungicides to reduce labor and mechanical costs.

It is suggested that short-season disaster relief crops such as mung beans should be planted in a large area with missing or dead seedlings.

For soybean fields lacking seedlings in a large area, crops with short growth periods such as mung beans can be appropriately replanted. The whole growth period of mung bean is generally 65-75 days, and it can mature normally. Generally, the sowing amount per mu is 2-3 kg, the row spacing is 30 cm, the plant spacing is 13 cm, and 2-3 seeds are sown in holes.

The above are the main points of soybean field management in bad weather. Soybean is greatly affected by the weather, which is easy to affect the growth and even reduce the yield and quality of soybean. Therefore, farmers should pay attention to the above points when encountering adverse weather.