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Movement of Soil Water and Salt of Drip Irrigation Under Different Ridge Cultivation Methods With Root Domain Restrictions

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年09
Page:
93-103
Research Field:
Publishing date:

Info

Title:
Movement of Soil Water and Salt of Drip Irrigation Under Different Ridge Cultivation Methods With Root Domain Restrictions
Author(s):
JIN Wei1; WANG Hao1; CHEN Yongwei1; WANG Shiping2; ZHANG Hongyin1; MA Wenli1
(1.Agricultural Technology Extension and Service Center,Ningxia Agticultural Reclamation Management Bureau,Yinchuan,Ningxia 750011;2.School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai 200240)
Keywords:
ridge cultivation; root domain restrictions; drip irrigation; water and salt migration
PACS:
-
DOI:
10.11937/bfyy.20202819
Abstract:
Two-year-old ‘Ningqi No.7’ was used as experiment material,movement of soil water and salt of drip irrigation under different ridge cultivation methods with root domain restrictions was researched in order to explore the ridge cultivation methods with root domain restrictions under drip irrigation.In order to provide a reference for planting Lycium barbarum in arid saline alkali land of Ningxia.The results showed that when the cumulative irrigation amount reached 1 715.7 m3?hm-2,the total salt content of the whole sand ridge,1/2 original soil+1/2 sand ridge,2/3 original soil+1/3 sand ridge could be effectively reduced to the range of mild saline-alkaline soil and non-salinized soil,which was beneficial to the growth of Lycium barbarum.Compared with the rate of decrease in ridge salinity,the treatment of full sand ridge,1/2 original soil+1/2 sand ridge,2/3 original soil+1/3 sand ridge with sandy soil root-limiting ridge was beneficial to salt contemt reduction;comparing the survival rate of seedlings,the survival rate of Lycium barbarum in the root-limit ridge cultivation mode was higher than CK,and the survival rate of the plants in the root-limit ridge cultivation mixed with sandy soil was the highest,96.3%,93.1%,and 100.0%,respectively.There was no significant difference between the three.Conclusion based on the severe saline alkali soil,which the water and salt regulation mode of ‘drip irrigation+guest sand soil+ridge root restriction’ could be used for Lycium barbarum planting,and the ridge Lycium barbarum planting can be carried out only when the drip irrigation and enhanced leaching irrigation are more than 1 715.7 m3?hm-2.

References:

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Last Update: 2021-08-06