How to adopt drought-resistant seedling protection technology for soybean?

There are many farming methods for drought resistance and seedling protection, and the most basic methods are: pushing, grabbing, borrowing and resisting. In arid and semi-arid areas, it is entirely possible to protect seedlings by ploughing, grabbing ploughing, borrowing ploughing and resisting ploughing. However, the effect is different. Generally, the survival rate of seedlings sown with top pulp is above 90%, those sown with soil moisture are about 85%, those planted with soil moisture are generally less than 80%, and those irrigated with water for drought resistance are generally above 95%.

(1) top. It is to top the pulp and sow it early. On the ground with retrogradation, when thawing the ploughed soil, the top slurry should be prepared immediately and sown early, so as to catch the retrogradation water and ensure the emergence of seedlings.

(2) grab. Is to catch the spring rain or autumn moisture to sow. Make full use of autumn moisture to sow early or use spring rain to grab seeds, such as sowing in the original ridge or deducting seeds, in order to gain agricultural time and use the only moisture to ensure seedling emergence.

(3) borrow. It is deep sowing, borrowing soil moisture. In hilly areas where there is no pulp to return, the sowing depth can be increased, and the seeds can be sown in deep soil to borrow water. After the seeds germinate, part of the soil is removed to ensure the emergence of seedlings.

(4) resistance. Is irrigation to fight drought. For plots with irrigation conditions, irrigation or hydroponics can be carried out before sowing, and seeds can be planted on wet soil to ensure the whole seedling.

(Hu Guohua)