First, flowering and seedling stage management flowering and fruiting period strive to make more flowers, early flowers, flowers Qi, increase flowers, increase glutinous, to prevent the loss of calyx is the main task of this period management. It depends on the management of seedlings, the combination of conservation and control, the control of high-yielding fields, and the avoidance of premature closure of ridges and ridges. It is advisable to reach the maximum leaf area at the end of flowering. Specific measures: continue hoeing before mulching, see the seedlings chasing after the water as appropriate, the early flowering period should be top-dressing weak seedlings, seedlings are not top-fat to prevent leggy. Phosphate fertilizer has obvious effect in the flowering stage. In this period, the leaf area of ​​soybean reaches the maximum value, the water consumption increases, and the transpiration intensity and water requirement all reach the peak period. When the leaves are old and green and the noon leaves are wilting, it is necessary to water in a timely manner, otherwise the scapes will fall off easily. At the end of the flowering stage, picking the top heart (6 cm from the top) can prevent lodging and promote the supply of nutrients. However, it is not suitable for picking up soybean varieties with limited knots and soybeans cultivated in infertile soil.
Second, drum grain maturity management Drum ripening period is the period when soybean accumulation of dry matter is the most. Promoting the transfer of nutrients to the grains, promoting grain fullness and increasing grain weight, and prompting premature maturity of soybeans are the main tasks of management during this period. The lack of water during this period will increase the number of maggots and pods, and the weight of 100 grains will decline. In case of drought and no rain, it should be watered in time, and tapping with water has a significant effect on improving soybean yield and quality.
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