Songnen plain saline-alkali soil comprehensive improvement method

A technology of saline-alkali soil and formula, which is applied in the fields of municipal management and agriculture, city appearance and environmental protection, and urban landscaping. It can solve the problems of no structural compaction, low organic matter and nutrient content, and short duration of improvement effect, so as to facilitate leaching, Enhance soil permeability and improve the effect of structure

Inactive Publication Date: 2016-10-26
博大绿泽生态建设集团有限公司 +1
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Problems solved by technology

[0006] The invention provides a method for comprehensively improving the saline-alkali soil in the Songnen Plain to solve the problem of short duration of the improvement effect in the prior art, and in the prior art, only the high-salt and strong-alkaline soil in the Songnen Plain is improved , without improving structural compaction, low organic matter and nutrient content

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  • Songnen plain saline-alkali soil comprehensive improvement method

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[0031] In order to further illustrate, through the technical effect of the improved Songnen Plain saline-alkali soil of the present invention, Table 1 is respectively provided with 5 groups of repeated tests, see Table 1, and each group of experiments is set 3 repetitions, and with Songnen Plain salt before improvement. Alkaline soil for control tests. After the saline-alkali soil in the Songnen Plain is evenly mixed with the formula of the present invention, it is placed in a permeable flower pot, watered twice, and the soil is no longer leached out of the filtrate before testing. The specific data is shown in Table 2. The reference standard is the construction industry Standard CJ / T 340-2011.

[0032] Table 1 Test group formula table

[0033] Group No

Saline-alkali soil

sand

Peat

Organic Fertilizer

Desulfurization gypsum

Test group 1

75 copies

20 copies

15 copies

3 copies

0.10 parts

Test group 2

70 copies

...

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PUM

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Abstract

The invention discloses a Songnen plain saline-alkali soil comprehensive improvement method. The method includes: fully mixing stripped and smashed Songnen plain saline-alkali soil to be improved, sand, turf, organic fertilizers, and desulfurization gypsum, wherein the volume ratio of the Songnen plain saline-alkali soil is 65-75, the volume ratio of the sand is 20-30, the volume ratio of the turf is 15-20, the volume ratio of the organic fertilizers is 3-6, and the volume ratio of the desulfurization gypsum is 0.06-0.15; backfilling the mixed Songnen plain saline-alkali soil, and watering the Songnen plain saline-alkali soil for more than two times to obtain the improved Songnen plain saline-alkali soil. The method reduces poison of saline and alkali to plants, provides an acid-base buffer effect, improves organic content of the saline-alkali soil, suppresses aggregation of salt on surface soil, and provides nitrogen phosphorus and potassium nutrients required by the plants; and in addition, the sand can improve the structure of the saline-alkali soil, enhance the permeability of soil, and facilitate leaching of saline and alkali.

Description

technical field [0001] The invention belongs to the fields of urban landscaping, city appearance environmental protection, municipal management and agricultural technology, and particularly relates to a method for comprehensively improving saline-alkali soil in Songnen Plain. Background technique [0002] The Songnen Plain saline-alkali land is one of the three concentrated distribution areas of soda saline-alkali land in the world. It is also a rare land resource in China with well-matched water and soil resources, a relatively good concentration, and a large-scale land resource for reclamation. The total amount of saline-alkali land to be developed and utilized The area is about 20.32 million mu. Songnenping is affected by the semi-humid and semi-arid continental monsoon climate in the middle temperate zone. The soil anti-salt period mainly occurs in spring and autumn, and due to the low water level, winter soil freeze-thaw, low rainfall and strong evaporation in spring U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01B77/00
CPCA01B79/02A01B77/00
Inventor 王铖吕子文徐杰
Owner 博大绿泽生态建设集团有限公司
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