Spring wheat fertilizer and water management

Pouring well after jointing and fertilizer application of nitrogen fertilizer in the jointing stage of wheat, can not only significantly increase the protein content, but also is a key period to increase wheat yield. Therefore, we should use well-established jointing fertilizer and water. Wheat grain yield and protein content depend largely on the level of nitrogen supply during development. Within the range of 16 kg of pure nitrogen applied per 667 square meters, grain protein content increased with increasing nitrogen content. In fertilization, the “pre-promoting, middle-control, and post-reform” fertilization methods were adopted, ie, 50% of base fertilizer, 50% of jointing and panicle-fertilizer, and the weight of attacking grains prevented premature aging. In the case of suitable soil moisture conditions, for the general land and suitable plots, the first watering in the spring should be postponed to the beginning of the jointing stage to control the excessive breeding of invalid tillers in spring and the elongation between one or two stalk bases. Watering applies about 30 kg of standard nitrogen fertilizer per 667 square meters; the land with high fertility and luxuriant seedlings may be delayed to the end of jointing; the poor soil and weak seedling plots will spring up. The first time the fertilizer can be advanced to the period of getting up.

Applying good and medium-term fertilizer and water to make a small amount of fertilizer after the booting stage of wheat not only has a certain effect on reducing flowering period degradation and increasing grains per spike, but also increases grain protein content and improves the quantity and quality of gluten. In the middle and later stages of wheat breeding, 5-7 kg of urea should be applied per 667 m2 of water from the flag-booting stage to the heading and flowering stage, and 2%-3% of urea solution can also be sprayed in the flowering stage. 0.3% ~ 0.5% potassium dihydrogen phosphate solution, spray 50 ~ 60 kg per 667 square meters. However, the fertilizer should not be too late in this period, and the soil fertilization should be no later than the flowering period, and the foliar spray should not be later than the grain filling period.

In the later stage, reasonable control of the watering stage of the watered wheat to the harvesting stage and appropriate control of watering can increase the glossiness and cutin quality of the grain, significantly reduce the “black embryo” phenomenon, increase the protein content of the grain, and prolong the stability time of the dough, so the yield and quality Simultaneous optimization considers that the number of waterings should be appropriately controlled during the later period of wheat growth.


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