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Method for planting cotton on low waterlogged saline-alkali land

A saline-alkali land and cotton technology, applied in botany equipment and methods, horticulture, application, etc., can solve the problems of cotton planting in low-lying waterlogged saline-alkali land, high groundwater salinity, and alleviate waterlogging hazards, so as to reduce fertilizer volatilization Loss or loss with water, increase of seedling rate, improvement of ecological conditions and growth environment

Inactive Publication Date: 2013-12-11
SHANDONG COTTON RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coastal saline-alkali land has a large area, high soil salinity, high groundwater salinity and relatively shallow burial depth, especially in low-lying saline-alkali land cotton fields with poor drainage. Difficult to grow seedlings, severe lack of seedlings and severe ridge breakage, slow growth and reduced yield
At present, although the conventional cotton planting method in saline-alkali land has a good effect of reducing or avoiding soil salt damage, it cannot reduce both salt damage and waterlogging damage at the same time, and cannot meet the needs of cotton planting in low-lying waterlogged saline-alkali land

Method used

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  • Method for planting cotton on low waterlogged saline-alkali land

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Experimental program
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Embodiment 1

[0017] In Dongying District, Dongying City, a cotton field in low-lying waterlogged saline-alkali land was selected. The basic situation is: the area is 0.5 hectares, the soil is medium-level, and cotton has been planted for the first 5 years; ; The results of multi-point measurement are average, and the total salt content of the soil is 0.39% ± 0.02%. Except for the different planting methods, other field management measures are the same as those of the local saline-alkali cotton field.

[0018] Half of the cotton field (called A1) is planted according to this planting method. 30-35 days before sowing, 600m2 per hectare is irrigated. 3 Press fresh water and salt, and when the soil moisture is suitable (75% to 80% of the maximum water holding capacity of the field soil), plow and harrow the land to make the ground level.

[0019] Apply sufficient base fertilizer after soil preparation, and concentrate fertilization along the ridge to the position that will be the top of the r...

Embodiment 2

[0025] In the Hekou District of Dongying City, a cotton field in low-lying waterlogged saline-alkali land was selected. The basic situation is: the area is 0.7 hectares, the soil fertility is above the middle level, and the previous crop is cotton; Heavy; multi-point measurement results are average, and the total salt content of the soil is 0.33% ± 0.01%. Sowing time is April 26, 2011. Except for the different planting methods, other field management measures are the same as those of the local saline-alkali cotton field.

[0026] Half of the cotton field (called A2) is planted by this planting method, which is the same as in Example 1.

[0027] The other half of the cotton field (called B2) was planted by the conventional cotton planting method in saline-alkali land, which was the same as in Example 1.

[0028] The implementation results show that, compared with the conventional planting method, the cotton seedling rate of the large ridge and slope planting method increases ...

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Abstract

The invention discloses a method for planting cotton on a low waterlogged saline-alkali land, which includes making large ridges before seeding; planting a row of cotton in the middle of each of slopes on two sides of each large ridge; and keeping low salt content and suitable water content for soil in a middle root area of each slope of the large ridge by gathering salt at ridge tops and draining water via furrows, thereby lessening cotton salt damage for the cotton and avoiding waterlog. Each large ridge in an arc shape is about 40cm in height and 160cm in bottom width. Using the method can effectively relieve salt damage and waterlog of the low waterlogged saline-alkali land and promote the cotton to germinate, grow seedlings and develop, and generally yield increase is more than 15%. The method is simple, practical, and not only applicable to cotton planting on low waterlogged saline-alkali lands, but also planting of other crops on the low waterlogged saline-alkali lands.

Description

technical field [0001] The invention relates to a cotton planting method, specifically a cotton planting method in low-lying, waterlogged saline-alkali land, which not only reduces salt damage but also avoids waterlogging, by gathering salt in ridges and draining water in furrows, and planting a row of cotton in the middle of the slope on both sides of a large ridge. Background technique [0002] The development and utilization of saline-alkali land in my country first started with land reclamation, followed by digging ditches to drain salt (alkali), diverting water for irrigation, planting rice, planting trees, and rearing to improve saline-alkali land and promote the development and utilization of saline-alkali land. However, many serious problems have also been brought about. The main manifestation is that in the past, the development and utilization of saline-alkali land was mainly based on engineering measures and relied on the serious consumption of fresh water resource...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00
Inventor 辛承松罗振张琮董合忠
Owner SHANDONG COTTON RES CENT