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Alkaline soil alkali-digesting, improving and plant growth promoting method

A technology of alkaline soil and alkali elimination agent, which is applied in the fields of soil preparation methods, applications, agricultural machinery and implements, etc. It can solve the problems of long improvement effect cycle, difficulty in small changes in soil pH value, and slow effect, so as to reduce the improvement cycle of alkaline soil and improve Effect of Alkaline Soil Improvement Efficiency

Inactive Publication Date: 2017-03-15
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, making small changes in soil pH is quite difficult because soil is a huge buffer system
Previous studies have shown that the implementation of manure, straw, and green manure overturning technology for many years can reduce the soil pH value by 0.40-0.65, and can create a more suitable plow layer for crop growth, which has a significant improvement effect, but this method is slow Therefore, even though it is known in principle that the more effective method of improving alkaline soil is to apply acidic substances, in the actual improvement process, the improvement effect often takes a long period and the efficiency is low

Method used

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  • Alkaline soil alkali-digesting, improving and plant growth promoting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Taking alkaline soil as an example to cultivate cotton as an example, the alkali elimination improvement of alkaline soil is carried out.

[0070] according to figure 1 The process shown is carried out.

[0071] 1) Initial alkali elimination

[0072] After harvesting cotton on alkaline land in autumn, use a straw cutting machine to overwhelm the straw on the site, cut it into 15-20cm long and short straw and spread it on the surface, spray urea phosphate, the pH of the soil is 8.0, and the amount of urea phosphate sprayed is 1.5g / m 2 According to the ratio of 1kg urea phosphate mixed with 100kg water, prepare urea phosphate into an aqueous solution and spray it.

[0073] 2) rinse

[0074] After spraying urea phosphate in the initial alkali elimination step, perform rotary tillage and leveling on the ground surface to build a plow layer with high organic matter content and low pH value. 3 per mu, to wash the saline-alkali to the core soil layer under the root layer...

Embodiment 2

[0085] Taking alkaline soil as an example to cultivate cotton as an example, the alkali elimination improvement of alkaline soil is carried out.

[0086] according to figure 1 The process shown is carried out.

[0087] 1) Initial alkali elimination

[0088] Same as step 1) in Example 1.

[0089] 2) rinse

[0090] Same as step 2) in Example 1.

[0091] 3) Mulch film drip irrigation sowing

[0092] Same as step 2) in Example 1.

[0093] 4) Alkali elimination and fertilization during the growth period

[0094] The measured soil pH value is 8.6. In the alkali elimination agent for drip irrigation applied to alkaline soil, the mass percentages of each component are: urea phosphate 96%, EDTA chelated iron 1.5%, EDTA chelated zinc 1.5%, EDTA chelated Manganese and EDTA chelated copper add up to 1%.

[0095] It is configured into a solution with a concentration of 1wt%, and at the cotton seedling stage, bud stage and flowering and boll stage, the same amount of drip irrigation...

Embodiment 3

[0099] Taking alkaline soil as an example for cultivating sunflower crops, the alkali elimination improvement of alkaline soil is carried out.

[0100] according to figure 1 The process shown is carried out.

[0101] 1) Initial alkali elimination

[0102] Same as step 1) in Example 1.

[0103] 2) rinse

[0104] Same as step 2) in Example 1.

[0105] 3) Mulch film drip irrigation sowing

[0106] Same as step 2) in Example 1.

[0107] The measured soil pH value is 9.2, and in the applied alkaline soil alkali elimination agent for drip irrigation, the mass percentages of each component are: urea phosphate 97%, EDTA chelated iron 1.2%, EDTA chelated zinc 1.1%, EDTA chelated The total amount of manganese and EDTA chelated copper is 0.7%.

[0108] It is configured into a solution of 1wt% concentration. At the sunflower seedling stage, budding stage and full bloom stage, equal amounts of drip irrigation are applied to alkaline soil with drip irrigation alkali elimination agent...

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Abstract

The invention discloses an alkaline soil alkali-digesting, improving and plant growth promoting method. The alkaline soil alkali-digesting, improving and plant growth promoting method comprises the following steps that 1, initial alkali digestion is performed, standing straw in alkaline soil is cut into smashed straw and laid on the earth's surface after crop harvesting, and urea phosphate is sprayed; 2, drip washing is performed, rotary tillage and flatting are performed on the earth's surface of the alkaline soil to obtain a plough layer, the plough layer is irrigated, and salt and alkali drip washing is perform to a subsoil layer of the plough layer; 3, mulching film laying, drop irrigation and sowing are performed, wherein a mulching film is laid on the alkaline soil surface, and crops are sowed by punching the surface of the plastic mulching film or before the plastic mulching film is laid; 4, alkali digestion and fertilization are performed in a growth period, an alkali-digesting agent for alkaline soil is drop-irrigated in the growth period of the crops, and alkali digestion and improvement of alkaline soil are achieved. By the adoption of the alkaline soil alkali-digesting, improving and plant growth promoting method, the alkaline soil can be remarkably improved in a long-acting mode, a relatively ideal growth environment can be also rapidly created for crop root system in a short time, accordingly an alkaline soil improving period is effectively shortened, and alkaline soil improving efficiency is improved.

Description

technical field [0001] The invention relates to a method for improvement and growth promotion of alkali elimination in alkaline soil, which belongs to the technical field of soil quality regulation. Background technique [0002] Alkaline soil is widely distributed in my country, and it is widely distributed in Northeast China, North China and Northwest China. In addition, in the vast arid and semi-arid areas, due to the continental climate, the precipitation is scarce and the evaporation is strong. If the irrigation measures are not appropriate, the secondary salinization of the soil is also very easy to occur. [0003] The high pH value in alkaline soil has adverse effects on the transformation and supply of crop nutrient elements. Due to the high alkalinity, soil organic matter is easily damaged and leached, and trace elements are scarce, resulting in a relative decrease in soil organic matter content and changes in nutrient supply conditions. Poor soil quality makes the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 逄焕成王婧赵永敢张莉
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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