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Accurate ratio method for improving acidified soil through lime matter and organic fertilizers

A technology for improving soil and organic fertilizers, applied in the fields of organic fertilizers, chemical instruments and methods, soil conditioning materials, etc.

Active Publication Date: 2017-09-19
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, how to mix lime and organic fertilizer? There is still a lack of a simple and effective method

Method used

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  • Accurate ratio method for improving acidified soil through lime matter and organic fertilizers
  • Accurate ratio method for improving acidified soil through lime matter and organic fertilizers
  • Accurate ratio method for improving acidified soil through lime matter and organic fertilizers

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Experimental program
Comparison scheme
Effect test

Embodiment

[0042] The test period is from October 2013 to June 2015. The test site is located in the farmer's contracted land in Qujing City, Yunnan Province. The soil type is acidic red soil with loose texture and low-to-medium fertility. The basic physical and chemical indicators of the soil are: soil pH 5.0, soil organic matter 21.1g / kg, CEC 12.2cmol / kg, total nitrogen 1.42g / kg, available phosphorus 13.1mg / kg, available potassium 134mg / kg.

[0043] Test crops: potato (food crop) and Chinese cabbage (vegetable crop)

[0044] In the same test plot, the effect tests of multiple growing season crops (over 6 months) were carried out, wherein: the test crop in the first growing season was potato, and the variety was "Lishu No. 6"; the test crop in the second growing season was The variety of Chinese cabbage is "Luchunbai No. 1", which is rotated twice a year, and the varieties are all excellent varieties suitable for local planting. When crops are rotated in the growing season, the layout ...

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Abstract

The invention provides an accurate ratio method for improving acidified soil through lime matter and organic fertilizers. The accurate ratio method comprises the steps: (1) respectively calculating the calcium carbonate equivalent of general lime matter and the calcium carbonate equivalent of general organic fertilizers; (2) testing a pH value, cation exchange capacity and base saturation percentage of soil to be improved and calculating the lime application amount according to the pH value, the cation exchange capacity and the base saturation percentage; (3) choosing and determining an appropriate match proportion of the organic fertilizers to the lime matter; (4) determining specific kinds of the organic fertilizers to be used and the matter to be used and calculating out physical quantities required by a specific farmland of the organic fertilizers and the lime matter according to the equivalent weight of calcium carbonate corresponding to the specific kinds. An organic fertilizers and lime matter organic and inorganic compound type acidified soil improving agent prepared in the method disclosed by the invention not only can eliminate side effects of independently applying lime to the soil, further can achieve the purpose of stably and durably improving the acidified soil and has important application value in the aspect of soil acidification soil improvement.

Description

technical field [0001] The invention relates to a precise proportioning method of "lime substance + organic fertilizer" for improving acidified soil. Background technique [0002] In the past 30 years, my country's farmland has generally been rapidly acidified. In 2010, the internationally renowned journal "Science" reported that the pH of farmland soil in my country has dropped by an average of 0.5 units compared with the 1980s. Statistics from the Ministry of Agriculture's soil testing and formula fertilization also show that at present, there are as many as 226 million mu of strongly acidic cultivated land with a pH lower than 5.5 in my country. Acidification has changed the physical, chemical and biological properties of the soil, leading to the decline of the basic soil fertility of the cultivated land, causing a sharp decline in crop yields or even extinction. If reasonable measures are not taken in time to improve the acidified soil, it will seriously threaten my coun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/06C09K109/00C09K101/00
CPCC09K17/06C09K2101/00C09K2109/00
Inventor 徐明岗周海燕李聪平李荣张才贵赵会玉周世伟顾朝令
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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