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Method of using salt tolerant zoysia japonica for reducing salt content of severe saline alkali soil

A technology for saline-alkali soil and severe saline-alkali land is applied in the field of reducing the salt content of severe saline-alkali soil by using salt-tolerant Zoysia japonica, which can solve the problems of inability to grow crops, poor soil structure, and high improvement costs, and achieves reduction of soil water evaporation, The effect of rapid formation and rapid growth

Inactive Publication Date: 2018-05-25
LUDONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to overcome the problems of high salt content, poor soil structure, inability to grow crops, high improvement cost and long time in severe saline-alkali coastal soil, and provide a method for reducing the salt content of severely saline-alkali soil by using salt-tolerant zoysia method

Method used

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  • Method of using salt tolerant zoysia japonica for reducing salt content of severe saline alkali soil
  • Method of using salt tolerant zoysia japonica for reducing salt content of severe saline alkali soil
  • Method of using salt tolerant zoysia japonica for reducing salt content of severe saline alkali soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) The construction season is July 2014, and the site is in Tianjin Dagang Oilfield;

[0027] 2) The soil is coastal heavily saline-alkali land with a salt content of 2.1%. Apply 13 cubic meters of cow dung per mu as the base fertilizer. Combined with plowing the land for 30 cm, mix the cow dung into the soil and rake it flat;

[0028] 3) Pave salt-tolerant Zoysia grass BD-61, the turf is 33-100 cm in strips, and the turf should be planted tightly, leaving no gaps as much as possible. After paving, use a shovel to pat down the soil and keep the soil moist until the root system is established;

[0029] 4) Irrigate with frozen water at the end of November 2014, water thoroughly before turning green in spring of 2014, and apply compound fertilizer NPK: 17-20-8, 20 kg / mu every month during the growing season;

[0030] 5) Cut the grass strictly according to the 1 / 3 principle, cut the grass about once every 7 days, and cut the grass at a height of 3cm;

[0031] 6) Effect eva...

Embodiment 2

[0038] The construction season is summer, and the location is Longju Town, Dongying City, Shandong Province.

[0039] 1) The soil is coastal sandy saline-alkali land with a salt content of 1.1%. Apply 13 cubic meters of cow dung per mu as the base fertilizer, combined with plowing the land for 30 cm, mix the cow dung into the soil, and rake it;

[0040] 2) Plant salt-tolerant Zoysia grass BD-61, about 15-20 grass stems per hole, plant according to the ratio of 1:5, keep the soil moist until the root system is established;

[0041] 3) Irrigate with frozen water at the end of November 2014, water thoroughly before turning green in the spring of 2014, and apply compound fertilizer NPK: 17-20-8, 20 kg / mu every month during the growing season;

[0042] 4) Cut the grass strictly according to the 1 / 3 principle, cut the grass once every 7 days, and cut the grass at a height of 3cm;

[0043] 5) Effect evaluation:

[0044] Such as diagram 2-1 , 2-2 ;

[0045] After 15 days of ber...

Embodiment 3

[0050] 1) The construction season is July 2016, and the location is in Hebei Province;

[0051] 2) The soil is coastal severe saline-alkali land with a salt content of 3.1%. Apply 13 cubic meters of cow dung per mu as the base fertilizer, combined with plowing the land for 30 cm, mix the cow dung into the soil, and rake it;

[0052] 3) Salt-tolerant Zoysias BD-61, the turf is 33-100 cm in strips, planted tightly, leaving no gaps as much as possible; after planting, pat down with a spade to keep the soil moist until the root system is established;

[0053] 4) Cut the grass strictly according to the 1 / 3 principle, cut the grass once every 7 days, and cut the grass at a height of 3cm;

[0054] 5) Effect evaluation:

[0055] Such as Figure 3-1 , 3-2 ;

[0056] Bermudagrass turf takes root in 3 days, and after 15 days, the survival rate of bermudagrass reaches over 95%;

[0057] The soil salinity is significantly reduced, the organic matter content is increased, and the stru...

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Abstract

The invention discloses a method of using salt tolerant zoysia japonica for reducing the salt content of severe saline alkali soil, and relates to the field of severe saline alkali land ecological management. The method of using salt tolerant zoysia japonica for reducing the salt content of the severe saline alkali soil includes the steps of 1, selecting a salt tolerant zoysia japonica species, 2,arranging the saline alkali soil, 3, laying and planting turf in the rainy season, and 4, conducting maintenance management. The method of using salt tolerant zoysia japonica for reducing the salt content of the severe saline alkali soil has the advantages that the selected salt tolerant zoysia japonica species can effectively and rapidly improve the saline alkali soil; the turf is laid and planted in the rainy season when the salt content of the soil is low so that vegetation can be rapidly built, moisture evaporation of the soil is inhibited, salinity increase is controlled, and the purposeof rapidly improving the saline alkali soil is achieved; the selected salt tolerant zoysia japonica species is salt tolerant and low-temperature tolerant sturfgrass which is selectively cultivated bya laboratory, and the method of using salt tolerant zoysia japonica for reducing the salt content of the severe saline alkali soil is suitable for ecological restoration of the saline alkali soil andespecially conducive to stability of saline alkali soil ecosystem.

Description

technical field [0001] The invention relates to the field of ecological management of coastal severe saline-alkali land, in particular to a method for reducing the salt content of severe saline-alkali soil by using salt-tolerant zoysia. Background technique [0002] my country has 550 million mu of various saline-alkali land resources and 33.7 million mu of severe saline-alkali land, which are the largest reserve cultivated land resources. In 2014, the National Development and Reform Commission, the Ministry of Science and Technology, the Ministry of Finance and other ten ministries and commissions jointly promulgated and implemented the "Guiding Opinions on Strengthening Saline-Alkali Land Management". In 2015, the first article of the No. 1 Central Document pointed out that "the implementation of scientific and technological projects for high-yield grain and saline-alkali land improvement technology demonstration" should be "implemented." Domestic improvement and utilizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 傅金民
Owner LUDONG UNIVERSITY
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