1. What does the wheat filling period mean?
1. Wheat grain filling is a stage of wheat grain formation. At this stage, the starch produced by wheat photosynthesis is stored in wheat seeds through assimilation. This filling process has two stages, one is the stage of milk ripening and the other is the stage of dough. These two stages play a great role in wheat grain growth, during which attention should be paid to the prevention and control of the invasion of pathogens and pests.
2. Wheat filling is also a stage of wheat pollination. At this stage, wheat will produce a lot of pollen. At this time, fractional pollination will become very simple and very fast.
3. Wheat filling is also a stage of accelerating wheat growth. At this stage, wheat will produce a large number of wheat grains, and the yield of good wheat cultivated at this stage will increase greatly, otherwise the yield of wheat will decrease.
Second, how to manage the wheat filling period?
1, supplement nitrogen fertilizer. Topdressing nitrogen fertilizer at wheat flowering stage (May 1 or so) has obvious effect on increasing grain number per spike and 1000-grain weight. The method is to water and topdressing urea 3-5 kg per mu.
2, timely pouring grouting water. According to the soil moisture, irrigate grouting water timely and properly, and the watering time should be controlled within 15 days after wheat flowering. Strong gluten wheat is forbidden to be watered with wheat yellow water; Pay close attention to the weather forecast when pouring slurry, and do not water before the rainstorm to avoid lodging.
3. Spraying fertilizer on the leaves. In the middle stage of grain filling (mid-May), the leaves were sprayed with Sanyang amino acid with 300 times of high-purity fulvic acid and 300 times of high-purity fulvic acid, and sprayed again every 7 days to improve the 1000-grain weight, optimize the quality and prevent dry and hot wind.