Field Experimental Study on Saline and Alkaline Soil Amelioration through Combining Chemical Method and Under-Mulch Drip Irrigation

Abstract:

Chemistry amelioration measure is a means of regulating soil water and salt movement, the paper introduced the method of combined the under-mulch drip irrigation with applying of chemicals, such as PAM, Handilong and Gypsum. The Field experimental results indicate that the surface soil bulk density reduced degree for applying chemistry matters is higher than without applying chemical farmland (as comparison treatment), the reduced rate shows to reduce one after the other increase with applying increasing. The holding water capacity for applying chemicals is higher than comparison treatment except the treatments for applying Handilong (3750Kg•ha-1) and Gypsum (5340Kg•ha-1), and the holding water effect applying PAM is the highest and the lowest for Gypsum. Applying chemicals also increases the soil water infiltration depth, and the soil water is held within 0-60cm soil layers for applying chemical soils and 0-40cm for comparison treatment. The desalinization rate is lowest for comparison treatment, the desalinization effect is biggish in upper initial soil salt content, and the highest for applying Handilong and the lowest for Gypsum. The output is lowest in comparison treatment, it reduces for applying PAM as applying increased, but to reduce one after the other increase with applying Handilong and Gypsum increasing.

• Periodical: Advanced Materials Research (Volume 599)
• Pages: 832-837
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.599.832
• Online since: November 2012
• Authors: Chun Xia Wang, Quan Jiu Wang, Zhuang Liang
• Keywords: Chemistry Regulatory Measures, Holding-Water Rate, Output, Saline and Alkaline Soil, Soil Water and Salt Movement

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