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Wheat before nitrogen high-yield cultivation techniques are suitable for use in wheat fields with high soil fertility (more than 350 kg per mu). Late wheat fields and under-populated wheat fields should not be used. After demonstration and promotion in various places, this technology shows good economic and social benefits: First, it can significantly increase wheat yield, increasing production by 10% to 15% compared with traditional fertilization methods; second, it can significantly improve wheat quality, not only can improve wheat The content of protein and wet gluten in the grain can also prolong the dough formation time and dough stability time, significantly improve the nutritional quality and processing quality of high-quality strong gluten wheat; thirdly, it can reduce the loss of nitrogen fertilizer and increase the utilization rate of nitrogen fertilizer by more than 10%. To reduce the environmental pollution of nitrogen fertilizer.
Pre-nitrogen migration improves wheat quality
The former nitrogen shift is a new high-quality and high-yield wheat technology that has been promoted and promoted in various places in recent years. It has been identified by the Ministry of Agriculture as one of the 10 promotion technologies for wheat production from 2004 to 2005. The main point is: in the nitrogen fertilizer applied in the whole growth period of wheat, the nitrogen fertilizer applied in the base fertilizer is reduced to 50%, the nitrogen fertilizer applied in the top dressing is increased to 50%; the wheat field with high soil fertility is 30%-50% in the base fertilizer. Nitrogen fertilizer, applying 50% to 70% of nitrogen fertilizer in topdressing. At the same time, the time of spring topdressing will be moved to the jointing stage, and the land with high soil fertility can be postponed until the jointing stage to the flag leaf tip.
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