Winter wheat-summer maize rotation high-yield cultivation fertilizing method

Abstract

The invention relates to a fertilizing method, in particular to a winter wheat-summer maize rotation high-yield cultivation fertilizing method. The fertilizing method disclosed by the invention comprises the following steps: applying compound / mixed fertilizer of 600-750kg / hm<2> in a wheat planting season and dressing controlled release urea of 150-225kg / hm<2> in a period of seedling establishment, and changing traditional wheat ripening stage harvesting into full ripening stage harvesting, wherein the full ripening stage means that the wheat grain weight is maximum; sowing seeds and the fertilizer simultaneously at a time in a maize planting season, wherein a seed fertilizer is controlled release urea of 450-600kg / hm<2>+P2O5 of 90-225kg / hm<2>+K2O of 90-150kg / hm<2>, or controlled release BB fertilizer of 550-750kg / hm<2>; moreover, harvesting after maize kernel milk lines disappear. According to the fertilizing method disclosed by the invention, annual balanced increase production can be realized, the yield of wheat and maize double cropping cultivation is increased, and the labor cost is reduced; the invention provides the winter wheat-summer maize rotation high-yield cultivation fertilizing method.

Description

technical field [0001] The invention relates to a fertilization method, in particular to a winter wheat-summer corn rotation high-yield cultivation fertilization method. Background technique [0002] The Huang-Huai-Hai region is the main grain-producing area in my country, especially the typical cropping system of winter wheat and summer corn, which is a two-cropping system in one year, is the main grain planting method in this area. The grain products produced ensure the food security of our country to a great extent, and fertilization is an important measure to improve its yield level. Winter wheat in this area is generally sown in October and harvested in early or mid-June, followed by summer corn in mid-June and harvested from mid-September to early October. Nutrients account for more than 50% of the contribution in the process of increasing grain yield, so the distribution of fertilizer in the rotation cycle of winter wheat and summer maize is particularly important. ...

AI Technical Summary

Problems solved by technology

[0005] In recent years, due to the transfer of most of the rural labor force, especially the young and middle-aged laborers, to the city, the limitation of labor has reduced the frequency of fertilization of wheat and corn, which cannot meet the nutrient requirements of crops.

In addition, the individual plants in the late stage of crop growth are relatively large, which is not suitable for mechanized operations. Farmers often manually sprinkle quick-acting nitrogen fertilizers into the field and combine watering for topdressing in the later period. This method increases the risk of nitrogen leaching downward. , thus affecting groundwater quality, waste fertilizer, and reduce nitrogen use efficiency. Some farmers simply do not carry out this key topdressing due to operational difficulties, thus entering a misunderstanding in production

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