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Method of quickly improving heavy saline-alkaline soil by using saline-alkali-resistant lawn grass

A technology for saline-alkali soil and severe saline-alkali land, which is applied in the field of rapid improvement of severe saline-alkali soil by using saline-alkali-tolerant turfgrass, which can solve problems such as high salt content, poor soil structure, and high improvement cost

Inactive Publication Date: 2018-03-20
LUDONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of high salinity, poor soil structure, inability to grow crops, high improvement cost and long time in the severe saline-alkali soil in the coastal area of ​​East China, and provide a method for rapidly improving severe saline-alkali soil by using saline-alkali-tolerant turfgrass

Method used

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  • Method of quickly improving heavy saline-alkaline soil by using saline-alkali-resistant lawn grass
  • Method of quickly improving heavy saline-alkaline soil by using saline-alkali-resistant lawn grass
  • Method of quickly improving heavy saline-alkaline soil by using saline-alkali-resistant lawn grass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) The construction season is July 2014, and the site is in Tianjin Dagang Oilfield;

[0031] 2) The soil is coastal heavily saline-alkali land, with a salt content of 2.1%. Apply 13 cubic meters of cow dung per acre as base fertilizer, combined with plowing the land for 30 cm, mix cow dung into the soil, and rake it flat;

[0032] 3) Pave the saline-alkali-resistant turfgrass, the turf is 33-100 cm strips, and plant 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;

[0033] 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;

[0034] 5) Strictly cut the grass according to the 1 / 3 principle (that is, the part of the leaves cut off should be less than 1 / 3 of the total number of leaves when pruning each time), cut ...

Embodiment 2

[0042] The construction season is summer, and the location is Longju Town, Dongying City, Shandong Province.

[0043] 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;

[0044] 2) Plant saline-alkali tolerant lawn grass, 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;

[0045] 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;

[0046] 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;

[0047] 5) Effect evaluation:

[0048] Such as diagram 2-1 , 2-2 ;

[0049] After 15 days of pl...

Embodiment 3

[0054] 1) The construction season is July 2016, and the location is in Hebei Province;

[0055] 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;

[0056] 3) Pave and plant salt-tolerant turfgrass, the turf is 33-100 cm strips, tightly pave and plant without leaving gaps as much as possible. After planting, pat with a shovel to keep the soil moist until the root system is established;

[0057] 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;

[0058] 5) Effect evaluation:

[0059] Such as Figure 3-1 , 3-2 ;

[0060] Salt-alkali-tolerant turfgrass turf takes root in 3 days, and after 15 days, the survival rate of saline-alkali-tolerant turfgrass reaches more than 95%;

[0061] The soil salinity is significantly red...

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Abstract

The invention discloses a method for rapidly improving heavy saline-alkaline soil by using saline-alkali-resistant lawn grass, and relates to the field of ecological treatment of coastal heavy saline-alkaline land. The method comprises the steps of 1) finishing saline-alkaline soil; 2) laying and planting salt-resistant lawn; and 3) performing maintenance management. The method is simple, low in cost, efficient and rapid. With the method, growth is rapid, a lawn can be quickly formed, soil moisture evaporation is reduced, increase of soil salinity is effectively inhibited, and rapid improvement of coastal saline-alkali land is facilitated. The method adapts to low temperature in winter in Hebei, Tianjin, Dongying, Jiangsu and other places in China, and has excellent landscape configurationeffect. The method is applicable to ecological restoration of coastal heavy saline-alkali areas in Hebei, Tianjin, Shandong and Jiangsu, especially for stabilization of ecosystems in coastal heavy saline-alkali ecologically fragile areas.

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 rapidly improving severe saline-alkali soil by using saline-alkali-tolerant turfgrass. 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 utiliza...

Claims

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Application Information

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IPC IPC(8): A01G20/18A01G20/35A01B79/02
CPCA01B79/02
Inventor 傅金民
Owner LUDONG UNIVERSITY
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