1. Technical definition. The technology of shifting nitrogen fertilizer in wheat is to postpone the application of nitrogen fertilizer to the early stage of jointing (early April) in high-yielding wheat fields, and the proportion of nitrogen fertilizers as base fertilizer and top dressing is about 50% each.

2. The principle of production increase. Using this technology can effectively control excessive hypertrophy of ineffective delivery, shape the robustness and uprightness of the flag leaves and the inverted two leaves; increase the root activity of the late growth period, and help to delay aging and increase grain weight. A reasonable population structure with a large accumulation of photosynthetic products and a large proportion of distribution to the grains after flowering can be established. Finally, the objective is to increase the content of wheat grain protein and wet gluten, prolong the dough stability time, and improve the nutritional quality and processing quality of strong gluten and medium-gluten wheat.

3. The scope of application. The technology must fully exert its effect in wheat fields with high fertility, and it is suitable for varieties with strong tillering ability and high spike rate. For late crops, weak seedlings, and inadequately populated wheat fields, it should not be used. Specific applications should be based on local weather, seedlings, sensation and many other factors, local conditions, and flexibility in order to receive better results.

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