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Fertilizer recommending method for winter wheat

A technology that recommends fertilization and winter wheat, applied in fertilization methods, fertilization devices, applications, etc., can solve problems such as non-point source pollution, improper fertilization ratio, soil nutrient loss, etc., and achieve the number of spikes per mu, thousand-grain weight and yield increase, fertilizer utilization rate Improvement, the effect that the recommendation mode is convenient

Inactive Publication Date: 2013-06-05
周海燕
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AI Technical Summary

Problems solved by technology

[0002] At present, in the fertilization of crops in our country, especially the fertilization of winter wheat, most farmers have been using the habitual fertilization mode without knowing the soil nutrient status and the fertilizer demand of wheat, which leads to the problem of excessive fertilization and improper fertilization ratio. Therefore, Cause soil nutrient loss, imbalance, non-point source pollution, and soil acidification are getting heavier; long-term large-scale application of chemical fertilizers, wheat production is generally 300-400kg / mu, and the utilization rate of fertilizers is low. The utilization rate of nitrogen fertilizer is only 24%, and phosphorus fertilizer 21% for potash and 45% for potash

Method used

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  • Fertilizer recommending method for winter wheat

Examples

Experimental program
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Effect test

Embodiment 1

[0027] ①Soil nutrient testing:

[0028] 1) Sampling: After winter wheat is harvested, select a wheat field with an area of ​​1.5-10 mu, follow the S-shaped route, and follow the principles of "random", "equal", and "multi-point mixing", the sampling points of each sample 15-20 pieces, the sampling depth is 0-20cm, and 1kg samples are taken according to the quartering method;

[0029] 2) Detection: Naturally air-dry the soil samples indoors, remove stones and impurities, and then conduct soil testing to detect organic matter, available phosphorus, and available potassium to obtain soil nutrient detection values; organic matter is measured by potassium dichromate method, and available phosphorus is measured by carbonic acid Sodium hydrogen was used to extract molybdenum antimony anti-colorimetric method, and available potassium was determined by acetic acid extraction flame photometer method. The soil nutrient detection value of the sampling plot was 6.2g / kg of organic matter, 2...

Embodiment 2

[0039] ①Soil nutrient testing:

[0040] 1) Sampling: After winter wheat is harvested, select a wheat field with an area of ​​1.5-10 mu, follow the S-shaped route, and follow the principles of "random", "equal", and "multi-point mixing", the sampling points of each sample 15-20 pieces, the sampling depth is 0-20cm, and 1kg samples are taken according to the quartering method;

[0041] 2) Detection: Naturally air-dry the soil samples indoors, remove stones and impurities, and then conduct soil testing to detect organic matter, available phosphorus, and available potassium to obtain soil nutrient detection values; organic matter is measured by potassium dichromate method, and available phosphorus is measured by carbonic acid Sodium hydrogen was used to extract molybdenum pin anti-colorimetric method, and available potassium was determined by acetic acid extraction flame photometer method. The soil nutrient detection value of the sampling plot was 11g / kg of organic matter, 26.0mg / ...

Embodiment 3

[0051] ①Soil nutrient testing:

[0052] 1) Sampling: After winter wheat is harvested, select a wheat field with an area of ​​1.5-10 mu, follow the S-shaped route, and follow the principles of "random", "equal", and "multi-point mixing", the sampling points of each sample 15-20 pieces, the sampling depth is 0-20cm, and 1kg samples are taken according to the quartering method;

[0053] 2) Detection: Naturally air-dry the soil samples indoors, remove stones and impurities, and then conduct soil testing to detect organic matter, available phosphorus, and available potassium to obtain soil nutrient detection values; organic matter is measured by potassium dichromate method, and available phosphorus is measured by carbonic acid Molybdenum and antimony anti-colorimetric method was used to extract hydrogen and sodium, and available potassium was determined by acetic acid extraction flame photometer method. The soil nutrient detection value of the sampling plot was 12.2g / kg of organic ...

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Abstract

The invention provides a fertilizer recommending method for winter wheat. The fertilizer recommending method comprises three steps of detecting soil nutrients, calculating a fertilizer recommending amount and fertilizing. The fertilizer recommending method achieves the purpose of scientific and reasonable fertilization, can prevent soil nutrient loss, imbalance, surface source pollution and soil acidification, can ensure proper fertilization, improve the yield of the winter wheat and enhance the fertilizer utilization rate, and is particularly suitable for fertilization of the winter wheat.

Description

Technical field: [0001] The invention designs a recommended fertilization method, in particular a recommended fertilization method for winter wheat. Background technique: [0002] At present, in the fertilization of crops in our country, especially the fertilization of winter wheat, most farmers have been using the habitual fertilization mode without knowing the soil nutrient status and the fertilizer demand of wheat, which leads to the problem of excessive fertilization and improper fertilization ratio. Therefore, Cause soil nutrient loss, imbalance, non-point source pollution, and soil acidification are getting heavier; long-term large-scale application of chemical fertilizers, wheat production is generally 300-400kg / mu, and the utilization rate of fertilizers is low. The utilization rate of nitrogen fertilizer is only 24%, and phosphorus fertilizer It is 21% and potash fertilizer is 45%. Invention content: [0003] The purpose of the present invention is to provide a r...

Claims

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Application Information

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IPC IPC(8): A01C21/00
Inventor 周海燕王旭芳刘霞张同志孙秀梅时学斌
Owner 周海燕
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