Spring wheat sowing early, rapid development speed, short growing season, spring wheat fertilizer needed to determine early enough, fast characteristics. Judging from the fertility of wheat itself, it entered the three-leaf stage ten days after emergence and began to differentiate into ears. From the growth cone to the stamen and the differentiation of only 37 days, the nutrient supply during this period is sufficient or not, which directly affects the development of wheat's fruit organs and the yield. According to the study, in the whole growth and development stage of spring wheat, more than 90% of nitrogen, more than 80% of phosphorus and more than 90% of potassium are absorbed before heading. Therefore, the fertilization of spring wheat should be mastered in the early application of fertilizer, making it "rich in the fetus." It is of great significance to apply sufficient fertilizer to wheat seedlings, seedlings, drought, cold, accelerated fertility and high yield.
The ideal fertilization method for spring wheat should be to apply the fertilizer to the soil layer of 12-15 cm in combination with the autumn land preparation. 1500 kg of fertilizer per 667 square meters, 12 kg of diammonium phosphate. At the time of sowing, 667 square meters of fertilizer urea is 7-8 kg.
The ideal fertilization method for spring wheat should be to apply the fertilizer to the soil layer of 12-15 cm in combination with the autumn land preparation. 1500 kg of fertilizer per 667 square meters, 12 kg of diammonium phosphate. At the time of sowing, 667 square meters of fertilizer urea is 7-8 kg.
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