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Method for reusing saline-alkali waste cultivated land to grow plants

A recycling, saline-alkali technology, applied in the field of soil agricultural chemistry, can solve problems such as inappropriate improvement measures, inability to discharge saline-alkali land, abandoned cultivation of saline-alkali land, etc. Effect

Inactive Publication Date: 2014-11-26
BAIYIN AGRI SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the purpose of the present invention is to provide a method for reusing saline-alkaline abandoned farmland to grow crops in order to improve saline-alkali The environment for growing crops on abandoned land

Method used

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  • Method for reusing saline-alkali waste cultivated land to grow plants
  • Method for reusing saline-alkali waste cultivated land to grow plants
  • Method for reusing saline-alkali waste cultivated land to grow plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Use vermiculite + perlite + fine sand + shed film to cover and isolate

[0036] Matrix material: vermiculite, perlite, fine sand

[0037] Matrix ratio: perlite: vermiculite: fine sand = 1:1:1; 1:1.5:1; 1.5:1:1

[0038] Crop varieties: eggplant, pepper, tomato, melon, radish

[0039] Applying fertilizer: before planting, apply 35g / m of diamine and compound fertilizer in the groove 2 ; Topdressing two times of diamine and compound fertilizer 15g / m after planting 2

Embodiment approach

[0040] Implementation method: The size of the plot is 900cm×50cm, repeated three times, drip irrigation. Each replicate has 12 eggplants, 30cm×20cm; 12 peppers, 30cm×20cm; 10 tomatoes, 30cm×20cm; 6 pumpkins, 50cm (spacing)×20cm (row spacing); 6 radishes, 30cm×20cm. Routine management after crop planting, a small amount of drip irrigation for multiple times. The biological characteristics of the crops were investigated every week, and the yields were counted after the crops were harvested. During planting, the height of eggplant and tomato plants is moderate, and the growth of melon plants is relatively good. The leaves are yellow-green in the early stage of growth, and the color changes after topdressing. The fruiting ability is good.

[0041] The implementation results are shown in the table below:

[0042]

[0043]

Embodiment 2

[0045] Use slag + weathered coal + fly ash + shed film to cover and isolate

[0046] Matrix material: slag, weathered coal, fly ash

[0047] Matrix ratio: slag: weathered coal: fly ash = 1:1:1; 1:1.5:1; 1.5:1:1

[0048] Crop varieties: eggplant, pepper, tomato, melon, radish

[0049] Applying fertilizer: before planting, apply 32.5g / m of diamine and compound fertilizer in the groove 2 ; After planting, topdressing twice diamine and urea each 17g / m 2

[0050] Implementation method: The size of the plot is 900cm×50cm, repeated three times, drip irrigation. Each replicate has 12 eggplants, 30cm×20cm; 12 peppers, 30cm×20cm; 10 tomatoes, 30cm×20cm; 6 pumpkins, 50cm (spacing)×20cm (row spacing); 6 radishes, 30cm×20cm. Routine management after crop planting, a small amount of drip irrigation for multiple times. The biological characteristics of the crops were investigated every week, and the yields were counted after the crops were harvested. During planting, the height of eggpl...

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PUM

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Abstract

The invention discloses a method for reusing saline-alkali waste cultivated land to grow plants, comprising the following steps of: (1) digging grooves and holes, ensuring length according to terrain, setting slight gradient at the bottom of the grooves, and arranging a water outlet at a lower place; (2) building a water discharge groove at the end of the water outlet; (3) digging a water return pool at the head of the land, reflowing redundant water in the grooves and holes, and storing the water in the water return pool; (4) isolating the saline-alkali waste cultivated land from the matrix by an agricultural greenhouses film at the bottom and the periphery of the grooves and holes, or paving furnace clinker at the bottom of the grooves and holes, and isolating the periphery of the grooves and holes by the agricultural greenhouses film; (5) the proper matrix has mixture of pearlstone, vermiculite and silver sand, mixture of furnace clinker, danty and coal ash, mixture of exotic soil and straw fermented substrate and exotic soil of the mixture, respectively filling the matrix into the different grooves and holes; (6) applying compound fertilizer and diamine with fixed quantity before the plants are grown, and topdressing urea and diamine with fixed quantity at twice at the fruiting period of the plants; (7) irrigating by means of trickle irrigation by a drip tape; (8) ridging, film paving and growing when the plants are grown; and (9) leading the grooves and holes to have a certain gap, and replacing the surfaces of the grooves and holes with the straw fermented substrate, so that the influence of the saline alkali to the matrix is reduced.

Description

technical field [0001] The invention belongs to the field of soil agricultural chemistry, and particularly relates to a method for reusing saline-alkali abandoned cultivated land for planting crops. Background technique [0002] Soil salinization is a worldwide resource and ecological problem. At present, the area of ​​saline soil in the world is about 1 billion hectares, of which the area of ​​saline soil in my country is about 34.6 million hectares, and the salinization of cultivated land is 7.6 million hectares, and nearly 1 / 5 of the cultivated land is salinized; among them, the original salinization type, The distribution of secondary salinization type and various alkalization types accounted for 52%, 40% and 8% of the total area respectively; the area of ​​secondary salinization soil caused by poor governance showed an increasing trend year by year. Salinity-alkali hazards have caused a large number of medium and low-yield fields and poor farmers, making it difficult to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G1/00
Inventor 刘继祖孙小东王正凤
Owner BAIYIN AGRI SCI RES INST
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