The booting stage is a crucial period for the multi-grain weight of wheat grains. In this period, sufficient supply of water and fertilizers should be provided to increase grain accumulation and accumulate more nutrients, which has a good effect on preventing premature aging of leaves and increasing grouting strength. Field management is mainly to protect the roots and leaves, to extend the green time of the upper leaves, prevent premature aging or greed, increase flower growth, promote grouting, and strive to get grain full weight. Management should pay attention to the following points:
1. Timely watering. Wheat needs a lot of water in the later period of childbirth. This period is in the dry season with less rainfall and more dry hot wind. In order to ensure the normal solid grouting of wheat, heading, flowering, and grouting should be well-watered in areas where conditions are favorable after heading to meet the water requirements of wheat.
2. Prevent lodging. First of all, we must combine the actual selection of lodging resistant varieties with proper close planting, deep plowing and improving the quality of soil preparation, and promote the development of root system before winter and return to the green period, and regulate the population structure. Especially in the jointing period, we must accurately determine the condition of the seedlings, and rationally apply fertilizer and water and chemical regulation. In addition, the irrigation during grain filling should pay close attention to the weather and prevent the lodging caused by watering in the windy days.
3. Top dressing. After the flowering of wheat, in the initial stage of grouting, spraying two phosphate fertilizers can increase the grain weight by 2 to 3 grams and increase the yield by about 10%. Because the later spraying of phosphorus is beneficial to increase the content of available phosphorus and sugar in the stems and leaves of wheat, it can promote grouting and make 1000-grain weight. Increase, maturity ahead of schedule. If wheat leaves are yellowish-green after flowering, there are signs of premature death, which can be combined with spraying phosphorus and spraying urea at a concentration of 1% to 2% (do not over-concentrate).
4. Remove the wheat field weeds in time. After the jointing of wheat, it is not appropriate to carry out chemical weeding. It is necessary to seize the time manually to remove it so as to prevent seeds from causing trouble.
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