Method for planting astragalus adsurgens pall by using drip irrigation in arid region shallow groundwater strongly saline-alkaline soil

A technology for severely saline-alkali land and groundwater, applied in the fields of botany equipment and methods, plant cultivation, climate change adaptation, etc., can solve the problems of difficult ecological sustainable construction, low survival rate, etc. Simple, easy-to-promote effects

Inactive Publication Date: 2017-11-17
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

However, the existing saline-alkali land with shallow groundwater in arid areas has a low survival rate and it is difficult to achieve ecological sustainab

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  • Method for planting astragalus adsurgens pall by using drip irrigation in arid region shallow groundwater strongly saline-alkaline soil
  • Method for planting astragalus adsurgens pall by using drip irrigation in arid region shallow groundwater strongly saline-alkaline soil

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Embodiment Construction

[0020] As an efficient irrigation method, drip irrigation has the characteristics of small flow, long time, and high frequency. At the beginning, the irrigation water diffuses the salt in the soil in the form of point water source diffusion to the outside of the distribution range of the plant root zone. Under certain conditions, the soil moisture can maintain a continuous downward movement trend, and the soil salinity will continue to move downward with the moisture, so as to achieve the purpose of salt leaching and salt control. In areas with shallow groundwater burial, raised ridges can relatively lower the groundwater level. The present invention will be further described below in conjunction with specific examples.

[0021] In 2015-2017, the saline-alkali wasteland on the saline-alkali land ecological restoration key technology research and demonstration base (38°1′44″N, 105°56′36″E) in the northwest of Shuxin Forest Farm, Qingtongxia City, Wuzhong City, Ningxia Hui Auton...

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Abstract

The invention provides a method for planting astragalus adsurgens pall by using drip irrigation in arid region shallow groundwater strongly saline-alkaline soil, and belongs to the technical field of saline-alkaline soil vegetation construction. The method comprises the steps of A, ridging, wherein soil is subjected to ridging, the interval between adjacent ridge bodies is controlled to be 30-35 cm, and ridge surfaces after ridging are subjected to flattening and hardening breaking processing; B, sowing, wherein a drip irrigation zone is laid on the ridge surfaces, and astragalus adsurgens pall seeds are sowed in line at the positions, 10 cm far away from two sides of the drip irrigation zone; C, salt-water regulation, wherein after sowing, drip irrigation is continuously conducted for 3-5 days, then the soil water matrix potential is controlled to be -5 kPa or above for 40-50 days, and then the soil water matrix potential is controlled to be -20 kPa or above; D, field management, wherein weeding, disease and pest controlling, fertilizing and irrigation are conducted. The method improves the emergence rate and yield of the astragalus adsurgens pall and solves the problems that the soil salinization degree of the arid region shallow groundwater saline-alkaline soil is high, the underground water level is high, accumulation of salt easily occurs, and the vegetation does not easily survive and is poor in growing condition.

Description

technical field [0001] The invention belongs to the technical field of vegetation construction on saline-alkali land, and in particular relates to a method for planting sandawang by drip irrigation on heavily saline-alkali land under shallow buried groundwater in arid areas. Background technique [0002] There is a large area of ​​low-lying saline-alkali land on the edge of the Yellow River irrigation area in the arid area of ​​Northwest China. Due to the shallow buried depth of the groundwater and the fact that the groundwater is mostly brackish water, the soil has a high degree of salinization. Vegetation is difficult to survive, the ecology is fragile, and vegetation construction is extremely difficult. With the continuous increase of national ecological construction, the vegetation restoration of degraded land such as saline-alkali land has become an important direction of ecological construction. However, on low-lying saline-alkali land, the traditional vegetation cons...

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Application Information

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IPC IPC(8): A01G1/00
CPCA01G22/00Y02A40/10
Inventor 康跃虎万书勤董世德李晓彬
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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