Maize soil testing fertilization method

A technology of soil testing and fertilization and fertilization methods, applied in the direction of fertilization methods, fertilization devices, botanical equipment and methods, etc., can solve problems such as imbalance, uncoordinated application ratio, heavy soil acidification, etc.

Inactive Publication Date: 2011-07-13
招远市农业技术推广中心
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AI Technical Summary

Problems solved by technology

[0002] At present, in my country's agricultural fertilization, especially corn fertilization, most farmers apply fertilizer according to experience without knowing the soil nutrient status and the fertilizer requirement of corn. In this way, there are more nitrogen and phosphorus fertilizers, no potassium fertilizer or less application The traditional habit of potassium fertilizer follows the customary fertilization mode. Thi...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] ①Soil nutrient testing:

[0023] 1) Sampling: After the corn is harvested, select a corn field with an area of ​​1.5-10 mu, follow the S-shaped route, and follow the principles of "random", "equal volume" and "multi-point mixing" to sample each sample. Point 15-20 sample points, sampling depth 0-20cm, take 1kg sample according to the quartering method, GPS locates the longitude and latitude of sampling, fills in the questionnaire, so that the sampling site is consistent with the fertilization site;

[0024] 2) Detection: dry the soil samples, perform pretreatment, and use conventional analysis methods to detect soil pH, organic matter, alkali-hydrolyzed nitrogen, available phosphorus, and available potassium. The pH of the soil is measured by the acid meter method, and the organic matter is measured by the potassium dichromate method. , the determination of alkaline hydrolysis nitrogen adopts alkaline hydrolysis diffusion method, the determination of available phosphoru...

Embodiment 2

[0034] ①Soil nutrient testing:

[0035] 1) Sampling: After the corn is harvested, select a corn field with an area of ​​1.5-10 mu, follow the S-shaped route, and follow the principles of "random", "equal volume" and "multi-point mixing" to sample each sample. Point 15-20 sample points, sampling depth 0-20cm, take 1kg sample according to the quartering method, GPS locates the longitude and latitude of sampling, fills in the questionnaire, so that the sampling site is consistent with the fertilization site;

[0036] 2) Detection: dry the soil samples, perform pretreatment, and use conventional analysis methods to detect soil pH, organic matter, alkali-hydrolyzed nitrogen, available phosphorus, and available potassium. The pH of the soil is measured by the acid meter method, and the organic matter is measured by the potassium dichromate method. , the determination of alkaline hydrolysis nitrogen adopts alkaline hydrolysis diffusion method, the determination of available phosphoru...

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Abstract

The invention relates to a maize soil testing fertilization method which is realized by three steps of soil nutrient detection, fertilizing amount calculation and fertilization. The proportion of N, P and K is scientifically and reasonably adjusted, and the soil nutrient proportion is coordinated, therefore, the invention improves the utilization ratio of fertilizer by more than 3 percent on average, does not cause soil nutrient loss and unbalance, diffused pollution and soil acidification, improves the maize yield and is particularly suitable for the fertilization of a maize field.

Description

Technical field: [0001] The invention relates to a soil testing and fertilization method, in particular to a corn soil testing and fertilization method. Background technique: [0002] At present, in my country's agricultural fertilization, especially corn fertilization, most farmers apply fertilizer according to experience without knowing the soil nutrient status and the fertilizer requirement of corn. In this way, there are more nitrogen and phosphorus fertilizers, no potassium fertilizer or less application The traditional habit of potassium fertilizer follows the customary fertilization mode. This fertilization mode is mainly divided into one fertilization, and nitrogen fertilizer is topdressed once from the seedling stage to the small trumpet stage, mainly urea, and ammonium bicarbonate is also applied. The application ratio of nitrogen, phosphorus, and potassium fertilizers Uncoordinated and inappropriate methods lead to soil nutrient loss, imbalance, non-point source pol...

Claims

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Application Information

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IPC IPC(8): A01C21/00A01G1/00G01N33/24
Inventor 周海燕盛坤军董英华吴德敏王淑玲刘海荣原晓玲李作信高常清姜好胜张俊祥吕世祝
Owner 招远市农业技术推广中心
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