Saline soil conditioner

A soil conditioner and salinization technology, applied in soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve the problems of ineffective soil pH value improvement, low cost, and high improvement efficiency, so as to improve microbial activity and ensure Ecological safety and efficiency improvement

Active Publication Date: 2014-08-13
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, at present, organic materials composed of manure, straw, and green manure are mostly used, most of which are neutral and have little effect on improving soil pH; furthermore, organic materials are inefficient in replenishing soil carbon pools, and have no obvious effect on improving soil organic matter; Moreover, organic materials composed of manure, straw, and green manure have a slow effect on the improvement of soil microorganisms.
The organic materials used to improve saline soil need to be invested for a long time, resulting in high cost for improving saline soil and low improvement efficiency of saline soil
[0007] For the saline soil conditioner using chemical substances, the chemical substances mainly include: gypsum, phosphogypsum, superphosphate, humic acid, peat, vinegar residue, etc., although it also has a certain effect on improving saline soil, and the cost is low. The improvement efficiency is high, but since the main components of the saline soil conditioner are generated chemically, if the application amount is large, it will have adverse effects on the farmland environment, for example, causing soil compaction; moreover, if it is not applied properly, it will also endanger the farmland environment Ecological security, therefore, based on the long-term consideration of agriculture, it is generally not recommended to use high-frequency and large-scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment one: conditioning the saline soil for planting tomato

[0072] In the embodiment of the present invention, the higher the salt content of the saline soil and the higher the pH value, the higher the weight percentage of sorrel. The salt content of the saline soil is determined to be 1.8g / kg, and the pH value is 7.6, so the proportioning of the saline soil conditioner applied to the tomato rhizosphere can be: 30% of sorrel dried at low temperature, crushed soybean stalk 55%, 5% straw biochar and 10% wheat bran made under the condition of 500°C. In the specific application, it is applied in holes before the transplanted tomato seedlings, and the saline soil conditioner is applied according to 50kg / mu. After applying the saline soil conditioner according to the embodiment of the present invention, compared with the control group without applying the saline soil conditioner, the single fruit weight of tomato increased by 37g, and the fruit firmness increased by 0...

Embodiment 2

[0073] Embodiment two: conditioning the saline soil for planting cotton

[0074] The saline soil salinity measured in the cotton field is 2.3g / kg, and the pH value is 8.2. The ratio of the saline soil conditioner applied to the cotton rhizosphere is: 38% of sorrel dried at low temperature, crushed soybean 40% of straw, 10% of straw biochar and 12% of wheat bran made under the condition of 500°C. The specific application method is: apply in strips before cotton sowing (tomatoes are transplanted seedlings, one hole and one seedling when transplanted, suitable for hole application, cotton is sown, so strips are applied), and the salt is applied according to 70kg / mu. soil conditioner. After using the saline soil conditioner of the embodiment of the present invention, compared with the control group without using the saline soil conditioner, the cotton bolls shedding decreased, the single boll weight increased by 0.31g, the cotton linter length increased by 0.28mm compared with th...

Embodiment 3

[0075] Embodiment three: conditioning the saline soil for planting sunflower fields

[0076] It is 3.8g / kg to measure the saline soil salinity of planting sunflower field, and the pH value is 8.9. 35% of soybean straw, 10% of straw biochar made under the condition of 500°C, and 10% of wheat bran. The specific application method is: apply the saline soil conditioner at the rate of 60kg / mu before planting the sunflower, and apply it once in the root hole at the budding stage of the sunflower, and apply the saline soil conditioner at 30kg / mu, two times. A total of 90kg / mu was applied each time (the salt content of the sunflower field is high, and the pH value is also relatively large. Applying twice can better ensure the action and effect of the conditioner. The key growth period of the salt-resistant sunflower production is mainly the seedling stage and the budding stage. It is scheduled to be applied at this time, which is conducive to the high yield of sunflower). After appl...

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Abstract

The invention discloses a saline soil conditioner, comprising the following raw materials by weight percent in dry weight: 25-55% of oxalis corniculala, 30-55% of soybean straw, 5-15% of straw biochar and 10-25% of wheat bran. The components are mixed by the weight percent after being crushed, and fully mixed evenly. By adopting the saline soil conditioner, the required cost for improving saline soil can be reduced when an ecological and safe farmland environment is ensured, and the efficiency for improving the saline soil is improved.

Description

technical field [0001] The invention relates to saline soil improvement technology, in particular to a crop rhizosphere saline soil conditioner suitable for improving the quality of crop rhizosphere (root system) saline soil with whole plant components. Background technique [0002] Saline-alkali soil or alkaline soil (alkaline soil) and other saline soil is a type of soil in which the concentration of soluble salts or substitutable sodium ions in the soil reaches a certain level, which makes the pH of the soil high and makes it difficult for crops to grow. The problem of soil salinization is widespread in the world. There are about 27 million hectares of saline land in my country, of which 60 million hectares are cultivated land and 21 million hectares are saline-alkali wasteland, mainly distributed in Northeast China and North China. , the northwest inland area and the coastal area north of the Yangtze River. In addition, in arid and semi-arid areas, due to the continental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C05G3/04C09K101/00C09K109/00C05G3/80
Inventor 王婧逄焕成赵永敢
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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