Salt-resistant and waterlogging-proof concave-convex cultivation method for cotton in coastal saline-alkali soil

A technology for saline-alkali land and severe saline-alkali land, applied in the agricultural field, can solve the problems of inconvenient mechanized operation, etc., and achieve the effects of stress resistance and yield increase, salt damage reduction, and faster waterlogging drainage

Pending Publication Date: 2021-11-09
VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method plantes cotton in the middle of the slope, it is inconvenient to realize mechanized operation (mechanical mulching, mechanical sowing, mechanical fertilization, cotton mechanical harvesting) etc.

Method used

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  • Salt-resistant and waterlogging-proof concave-convex cultivation method for cotton in coastal saline-alkali soil
  • Salt-resistant and waterlogging-proof concave-convex cultivation method for cotton in coastal saline-alkali soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this experiment, cotton variety K836 was used as the material, and it was carried out in a cotton field in Wudi County, Binzhou City. The cotton field area is 4.5 mu, and the soil salt content is 0.65%. Cotton field is divided into two, and half is planted according to the method for embodiment 1 of the present invention. The specific planting method includes the following steps:

[0026] 1) Ridging before winter and filling with water and salt

[0027] On November 10, after the cotton was harvested, the ground was deeply plowed and prepared, and ridges were raised. The height of the ridge was 28 cm, the width of the ridge was 80 cm, the distance between the two ridges was 160 cm, and the furrow between the ridges was 75 cm wide; Medium irrigation 150m 3 per mu, the salt content of the plow layer in furrows shall be reduced to less than 0.3%;

[0028] 2) Mulching and sowing in spring

[0029] On February 25, the machine was used to spread the mulch film in the d...

Embodiment 2

[0037] 1) Ridging before winter and filling with water and salt

[0038] The salt content of the soil is 1.0%. Before winter, deep loosen the soil and prepare ridges. The height of the ridge is 30 cm, the width of the ridge is 90 cm, the distance between the two ridges is 180 cm, and the furrow between the ridges is 80 cm wide; 3 Press salt per mu to reduce the salt content of the plow layer to less than 0.3%;

[0039] 2) Mulching and sowing in spring

[0040] In the first ten days of March, the furrows are covered with film, and the film width is 90cm; on April 20-30, when the ground temperature of 5cm has stabilized above 15°C, two rows of cotton are drilled on the film, with a row spacing of 50cm, forming a "concave" planting. Use the characteristics of low salinity in the ditch to reduce salt damage and promote emergence and growth.

[0041] 3) Cultivate flat ridges in summer

[0042] In the first ten days of June, after the salt-resistant ability of cotton is enhanced,...

Embodiment 3

[0044] 1) Ridging before winter and filling with water and salt

[0045] The salt content of the soil is 0.5%. Before winter, deep loosen the soil and prepare ridges. The height of the ridge is 25 cm, the width of the ridge is 70 cm, the distance between the two ridges is 140 cm, and the furrow between the ridges is 70 cm wide; 3 Press salt per mu to reduce the salt content of the plow layer to less than 0.3%;

[0046] 2) Mulching and sowing in spring

[0047]Cover the furrows with film in the first ten days of February, with a film width of 80cm; on April 20-30, when the 5cm ground temperature has stabilized above 15°C, two rows of cotton are drilled on the film with a row spacing of 45cm to form a "concave" planting. Use the characteristics of low salinity in the ditch to reduce salt damage and promote emergence and growth.

[0048] 3) Cultivate flat ridges in summer

[0049] In the first ten days of June, after the salt-resistant ability of cotton is enhanced, remove the...

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Abstract

The invention discloses a salt-resistant and waterlogging-proof concave-convex cultivation method for cotton in coastal saline-alkali soil. The method comprises the following steps: ridging before winter, irrigating with water in ditches to press salt, covering with films to preserve soil moisture and inhibit salt in spring, punching holes on furrow films after a certain ground temperature is reached, and sowing to form concave planting; in the first ten-day period of June, uncovering the mulching film, leveling ridges, performing hilling to the base of the cotton, forming furrows into ridges, forming ridges into furrows, and achieving convex planting. The cultivation method is simple, convenient and practical, salt damage is reduced, seedling emergence of saline-alkali soil is facilitated, the method is also suitable for waterlogging prevention and drainage of saline-alkali soil crops, and the lodging-resistant, stress-resistant and yield-increasing effects are obvious.

Description

technical field [0001] The invention relates to a salt-waterlogging and concave-convex cultivation method for cotton in coastal saline-alkali land, which belongs to the field of agricultural technology. Background technique [0002] The coastal saline-alkali land dominated by the Yellow River Delta in Shandong is an important high-quality cotton production base in my country. However, the groundwater level in coastal saline-alkali land is high. On the one hand, it is easy to return to salt in spring. The stress is not only unfavorable to the growth of the root system of cotton plants, but also forces the root system to change from aerobic respiration to anaerobic respiration, destroying the function of the root system, and makes the cotton plants lodging, which in turn affects the formation of cotton yield and quality. The double hazards of waterlogging and salt damage lead to low cotton yield and poor quality in severe coastal saline-alkali land. [0003] Most of the exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/50
CPCA01G22/50
Inventor 张艳军董合忠张冬梅代建龙
Owner VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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