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I. Wheat nitrogen fertilizer post-transplant cultivation technology Nitrogen fertilizer rear-shifting technology is a set of high-yield, high-quality and high-efficiency cultivation techniques for wheat, suitable for strong gluten wheat and medium gluten wheat. In wheat cultivation, nitrogen fertilizer is generally divided into two applications. The first time is to plough a part of nitrogen fertilizer into the ground with the cultivated land before planting, which is called bottom fertilizer; the second is spring dressing combined with spring watering. In traditional wheat cultivation, the base fertilizer generally accounts for 60-70%, and the top dressing accounts for 30-40%; the top dressing time is generally from the regreening period to the rising period. Fertilization time and bottom-dressing ratio make nitrogen fertilizer reapplied in the early stage of wheat growth. In high-yield fields, the wheat field population will be too large, and there will be many inefficient tillers. In the middle stage of wheat growth, the field will be depressed, the risk of lodging will increase, and the early stage will prematurely decay, affecting yield and quality. The nitrogen fertilizer utilization rate is low. Nitrogen fertilizer post-shifting technology reduced the proportion of bottom fertilizer of nitrogen fertilizer to 50%, the proportion of topdressing increased to 50%, the ratio of fertilizer to wheat with high soil fertility was 30-50%, the proportion of topdressing increased to 50-70%; Move back, usually move to the jointing stage.
Second, the application of nitrogen fertilizer after shifting technology should pay attention to the problem of applying nitrogen fertilizer after shifting technology should pay attention to the following two points:
1. This technique should be applied under conditions of high soil fertility.
2, should use the technology under normal cultivation conditions, late wheat, weak seedlings, insufficient population and other wheat fields, should not be used.
Huaxian County Fertilizer Station Zhao Dongli
Wheat nitrogen fertilizer post-transfer high-yield cultivation techniques
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