Method for improving secondary salinization of soil in facility cultivation

A technology for secondary salinization and facility cultivation, applied in the field of improving soil secondary salinization in facility cultivation, can solve problems such as inconsistent effects, improve quality, increase pH value and CEC value, and improve fertilizer retention. effect of action

Inactive Publication Date: 2019-04-16
TAICANG AGRI TECH EXTENSION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Predecessors have made a lot of beneficial attempts to overcome secondary salinization by adding ...

Method used

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  • Method for improving secondary salinization of soil in facility cultivation
  • Method for improving secondary salinization of soil in facility cultivation
  • Method for improving secondary salinization of soil in facility cultivation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 (ROF)

[0027] A method for improving secondary salinization of soil in protected cultivation, specifically comprising the following steps: selecting three test plots, each of which is 26m2 2 , Plant protection rows around the test plot, then sow spinach and fertilize in the test plot with a seeding rate of 300kg / hm 2 , irrigate until the soil is moist, cover the film to keep moisture, remove the film after the seeds germinate, and cut the seedlings up to 36cm. The whole production cycle is cut 7 times. After each cut, there is no top dressing, and the whole production cycle does not prevent diseases and insect pests.

[0028] The fertilizer fertilized in the present embodiment is the rice bran fungus base fertilizer, and the one-time base application is 16500kg / hm 2 . Rice bran base fertilizer is prepared from crushed rice bran and organic material decomposing agent, wherein the mass ratio of crushed rice bran to organic material decomposing agent is 10:...

Embodiment 2

[0030] Embodiment two (OF)

[0031] This embodiment is the same as Embodiment 1, the difference is that the fertilizer fertilized in this embodiment is microbial fertilizer, and the one-time basal application is 7500kg / hm 2 , which is a powder, the number of effective viable bacteria ≥ 200 million / g, organic matter ≥ 55%, total nutrients ≥ 5%, produced by Jurong Lantian Bishui Biotechnology Co., Ltd.

Embodiment 3

[0036] Embodiment three test and result analysis

[0037] (1) Test content and method

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Abstract

The invention discloses a method for improving secondary salinization of soil in facility cultivation, which comprises the following steps of: selecting a test plot, planting protection rows around the test plot, sowing plants and fertilizing in the test plot by adopting a drill sowing mode, wherein the seeding amount is 250-350kg/hm<2 >, irrigation is carried out until the soil is moist, a film is paved and moistened, the film is removed after the seeds sprout and come out of the soil, the seedlings are mowed after reaching 30-40cm, during the whole production period, the seedlings are mowedfor 6-8 times, no topdressing is carried out after each mowing, and the whole production period does not control plant diseases and insect pests; and the fertilizer for fertilizing is a microbial bacterial fertilizer or a rice chaff fungus matrix fertilizer. The method for improving the secondary salinization of the soil in the facility cultivation can obviously improve the pH value and CEC valueof the soil, can improve the fertilizer conservation effect of the soil and reduce the nitrate content in the soil; by planting the water spinach, the residual nitrogen in the soil can be reduced, andthe purposes of reducing the salt content of the soil and relieving the secondary salinization of the soil can be achieved.

Description

technical field [0001] The invention relates to the technical field of agricultural land management and agricultural utilization, in particular to a method for improving secondary salinization of soil in protected cultivation. Background technique [0002] Secondary salinization refers to the process of soil salinization caused by unreasonable cultivation and irrigation. Due to the high multiple cropping index, the long-term use of chemical fertilizers and the lack of natural leaching in protected cultivation, the secondary salinization of the soil has become the main soil obstacle factor restricting the development of protected vegetables, hindering the development of protected agricultural production. sustainable development. Secondary salinization not only directly endangers the normal growth of crops, but also easily causes other related production problems. [0003] Studies have shown that paddy and dry crop rotation can make the salt in the soil infiltrate with the w...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 张绪美沈文忠胡青青左其东李梅曹亚茹刘文涛王琪陈建中丁新红朱凤珍
Owner TAICANG AGRI TECH EXTENSION CENT
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