Optimized fertilization method for winter rape

A fertilization method and technology for winter rapeseed can be applied to fertilization methods, fertilization devices, leaf crop cultivation, etc., and can solve the problems of high fertilizer input cost, environmental risks, large fertilizer application amount, etc., and achieve strong pertinence and improve fertilizer utilization rate. and economic benefits, the effect of increasing production

Inactive Publication Date: 2019-01-18
HUAZHONG AGRI UNIV
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Problems solved by technology

At the same time, according to the survey, in the cultivation of rapeseed, the cost of fertilization has accounted for about 60% of the total direct investment in rapeseed planting. The high cost of fertilizer input has become an important factor restricting farmers' income from planting rapeseed.
The research also shows that the fertilizer utilization

Method used

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  • Optimized fertilization method for winter rape
  • Optimized fertilization method for winter rape
  • Optimized fertilization method for winter rape

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1 field verification test

[0050] The experiment was carried out from October 2016 to May 2017 in Xiantao City, Shayang County, Chibi City, Wuxue City and other main winter rapeseed producing counties (cities) in Hubei Province (variety Huayouza No. 11, sponsored by Huazhong Agriculture A high-quality rapeseed variety selected by the University and widely used in the winter rapeseed area of ​​the Yangtze River Basin). Before the start of the test, investigate and record the planting conditions, fertilization habits and yield of each test site, determine the target yield and soil basic nutrient supply level according to the survey results, and calculate the yield response and nitrogen and phosphorus levels through the optimized recommended fertilization method of the present invention. Potassium fertilizer consumption (Table 3), at the same time set the local farmers' habits and soil testing formula fertilization treatment as a control. The area of ​​the plo...

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Abstract

The invention discloses an optimized fertilization method for winter rape. The optimized fertilization method comprises the following steps: 1) determining the target yield of the winter rape in a target area according to the recent three-year output in the target area; 2) determining the soil nutrient supply grade and the winter rape fertilization yield response as well as the agronomic efficiency; 3) calculating in combination with the target yield, the yield response, the agronomic efficiency and the soil nutrient supply grade to obtain the recommended fertilization amount of nitrogen, phosphorus and potassium required by the winter rape to obtain the target yield; 4) fertilizing soil according to the recommended fertilization amount of the nitrogen, the phosphorus and the potassium. The fertilization method is suitable for a winter rape rotation planting area in the Yangtze River Basin of China; the recommended fertilization method obtained by calculation has the characteristic ofbeing highly-targeted, and can effectively improve the yield of the winter rape and improve the fertilizer utilization rate and the economic efficiency.

Description

technical field [0001] The invention relates to a method for optimizing fertilization of winter rapeseed. Background technique [0002] Winter rapeseed is the most common crop planted in the Yangtze River Basin, and it is also the only oil crop in my country that does not compete with food crops for land. At present, the annual planting area is 7 to 8 million hectares, and about 60% of the domestically produced edible vegetable oil comes from rapeseed. Therefore, Increasing the yield of rapeseed is an important measure to ensure the safety of edible oil in our country and meet the living needs of the people. [0003] In rapeseed planting and production, fertilization is the most important production measure in cultivation. According to research, if no fertilization is applied, the yield of rapeseed will be reduced by 50-60% or even more, and the contribution rate of fertilization in high-yield rapeseed planting has exceeded 50%. , significantly higher than that of other crop...

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Application Information

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IPC IPC(8): A01C21/00A01G22/15
CPCA01C21/005A01G22/15
Inventor 丛日环鲁剑巍李小坤任涛何萍马军伟张洋洋张智
Owner HUAZHONG AGRI UNIV
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