Nitrogen-saving synergistic fertilization method which is suitable for annual crop rotation of winter wheat/summer corn and takes soil environmental capacity into account

A technology of environmental capacity and fertilization method, applied in fertilization methods, nitrogen fertilizers, fertilization devices, etc., can solve problems such as difficulty in taking into account yield, economic benefits, and ecological benefits, and achieve sustainable development, increase grain yield, and improve nitrogen absorption. The effect of transshipment

Inactive Publication Date: 2018-10-12
HENAN AGRICULTURAL UNIVERSITY +1
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a nitrogen-saving and efficiency-enhancing fertilization method for annual winter wheat / summer corn annual crop rotation that takes into account the soil environmental capacity, aiming to solve the output, economic benefits, Difficult to take into account the technical problems of ecological benefits

Method used

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  • Nitrogen-saving synergistic fertilization method which is suitable for annual crop rotation of winter wheat/summer corn and takes soil environmental capacity into account
  • Nitrogen-saving synergistic fertilization method which is suitable for annual crop rotation of winter wheat/summer corn and takes soil environmental capacity into account
  • Nitrogen-saving synergistic fertilization method which is suitable for annual crop rotation of winter wheat/summer corn and takes soil environmental capacity into account

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Embodiment 1

[0031] Embodiment 1: Winter wheat / summer corn annual crop rotation fertilization test

[0032] (1) Test conditions

[0033] 1. Experiment site: The experiment was set up at the Fengqiu Agricultural Ecological Experimental Station of the Chinese Academy of Sciences in Fengqiu County, Henan Province (N 34°01′, E114°45′), which is located in the northeast of Henan Province and the southeast corner of Xinxiang City, belonging to the warm temperate zone Continental monsoon climate, annual average temperature of 14°C, uneven distribution of precipitation, mostly concentrated in June, July and August, frost-free period of 214 days, sunshine hours of 1928.5 hours, monthly rainfall of two consecutive crop rotation cycles in this experiment See figure 1 . The soil in the test site is a sandy fluvo-aquic soil developed on the sediments of the Yellow River. The basic nutrients of the 0-20 cm plow layer are total nitrogen content 0.79 g / kg, organic matter content 11.2 g / kg, available pho...

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Abstract

The invention discloses a simple nitrogen-saving synergistic fertilization method which is suitable for annual crop rotation of winter wheat/summer corn in the Huang-huai area and takes the soil environmental capacity into account. The method comprises the steps of: performing one-time basal application of 155-180 kg/hm<2> of N, 100-150 kg/hm<2> of P2O5 and 80-90 kg/hm<2> of K2O by combining fieldpreparation before sowing of the wheat in a wheat planting season; and in a corn planting season, performing one-time basal application of 155-180 kg/hm<2>, 100-150 kg/hm<2> of P2O5 and 80-90 kg/hm<2> of K2O when the corn is sowed, wherein the N comes from slow release urea. The fertilization method is environmentally friendly and labor-saving and time-saving, and has low cost and high economic benefits, the application amount of labor can be reduced, and the method has broad market and application prospects.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a nitrogen-saving and efficiency-enhancing fertilization method for annual winter wheat / summer corn annual rotation, which is suitable for the Huanghuai region and takes soil environmental capacity into consideration. Background technique [0002] The annual rotation of wheat and corn is a typical crop planting system in the Huanghuai Plain. Nitrogen fertilizer application, especially the rational application of nitrogen fertilizer, is an important factor to increase the yield of wheat, corn and other crops. The amount of nitrogen fertilizer and the method of fertilization have important effects on the yield and nitrogen use efficiency of wheat and maize. According to statistics in 2015, the amount of chemical fertilizers used in China has reached 6022.6×10 4 t, of which the amount of nitrogen fertilizer is 2361.6×10 4 t, accounting for 39.2% of the total amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01C21/00C05G1/00
CPCA01C21/005A01G22/20C05B1/02C05B1/04C05B13/02C05C9/00C05D1/02
Inventor 谢迎新张伟纳刘宇娟董成赵旭马冬云岳艳军王晨阳郭天财王慎强
Owner HENAN AGRICULTURAL UNIVERSITY
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