Optimum combination of soil amendments under drip irrigation with different water sources in coastal areas of East China

Spanish Journal of Agricultural Research

Xiuping Wang¹  Jianping Sun²  Zaijian Yuan⁴  Yahui Liu⁵  Shumei Zhou⁶ 

[1] Sust. Devel. of Hebei Province, Shijiazhuang 050018;Technol., Center for Ecol. Econ. &Technol., Guangzhou 510650;Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Inst. of Ecoenviron. Sci. &Institute of Coastal Agriculture, Hebei Acad. Agr. For. Sci., Center for Saline and Alkali Land Green. Eng. Technol. of Hebei Province, Key Laboratory of Plant Salt Tolerance Research of Tangshan City, Caofeidian 063299;School of Management and Economics, Hebei Univ. of Sci. &

关键词: saline-alkali soil;    orthogonal test;    fresh water;    brackish water;    soil improvement;   

DOI  :  10.5424/sjar/2018163-13165

学科分类：农业科学（综合）

来源: I N I A

【 摘 要 】

The effects of drip irrigation (DI) with fresh water (FW) and brackish water (BW) on saline-alkali soil improvement were compared under treatments of five amendment combinations. The experiment was designed using the orthogonal test method and performed using an indoor DI system. Soil electrical conductivity (EC), pH, sodium adsorption ratio and soil nutrients were analyzed after DI both before evaporation and after one month of evaporation. The results showed that after one month of evaporation, soil EC increased by an average of 97.26% and 27.76% for the FW and BW treatments, respectively. Furthermore, it was shown that soil nutrients increased greatly under the BW treatment and that cow dung proved to be a leading agent influencing soil nutrients except available soil potassium ( p <0.05). Consequently, the optimum combination of soil amendments was determined as 0.03 m 3 /m 2of straw, 3 kg/m 2of phosphogypsum, 0.04 m 3 /m 2of cow dung, 0.6 kg/m 2of humic acid and 0.18 kg/m 2of microbial fertilizer under the BW treatment.

【 授权许可】

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