Effects of New Acid-base Balance Agent on Soil Salinization and Yield of Rice with Drip Irrigation under Mulch Film

doi:10.3969/j.issn.1006-8082.2021.03.014

Abstract

Abstract:

Increased soil salinization will lead to a decline in water and fertilizer use efficiency in paddy fields, which will have a greater impact on yield of rice with drip irrigation under mulch film. In response to this phenomenon, the changes of pH value and electrical conductivity of paddy soil after applying different dosages of new acid-base balance agent（7.5 kg/hm², 15.0 kg/hm², 22.5 kg/hm²）, and their effects on yield of rice with drip irrigation under mulch film were studied. The results showed that applying new acid-base balance agent could significantly reduce the soil pH value and electrical conductivity, and the improvement effect is best in the 20~30 cm soil layer; it significantly increased the effective panicles of rice with drip irrigation under mulch film to achieve the purpose of increasing yield. Comprehensive consideration of economic benefits, the application dosage of 15.0 kg/hm² was appropriate.

Key words: rice, salinization, new acid-base balance agent, drip irrigation under mulch film, soil improvement, yield

摘要：

土壤盐渍化加剧会导致稻田水肥利用效率下降,对水稻产量造成较大影响。针对这一现象,利用市场上已有的新型酸碱平衡剂,试验分析施用不同用量（7.5 kg/hm²、15.0 kg/hm²、22.5 kg/hm²）酸碱平衡剂后稻田土壤pH值和电导率的变化,及对膜下滴灌水稻产量的影响。结果表明,施用新型酸碱平衡剂能显著降低土壤pH值和电导率,且在20~30 cm土层改良效果最佳;显著提高了膜下滴灌水稻有效穗数,达到增产的目的。综合考虑施用后的经济效益,15.0 kg/hm²的用量较为适宜。

关键词: 水稻, 盐渍化, 新型酸碱平衡剂, 膜下滴灌, 土壤改良, 产量

CLC Number:

S511.062

Xiaofeng ZHANG, Xiaojuan WANG, Dong HUANG, Shijiang JIA, Fangjun BAO, Gaohua LI, Guanyun QIAN. Effects of New Acid-base Balance Agent on Soil Salinization and Yield of Rice with Drip Irrigation under Mulch Film[J]. China Rice, 2021, 27(3): 70-72.

张晓峰, 王肖娟, 黄东, 贾世疆, 包芳俊, 李高华, 钱冠云. 新型酸碱平衡剂对膜下滴灌水稻土壤盐渍化的改良效果及对产量的影响[J]. 中国稻米, 2021, 27(3): 70-72.

Figures/Tables 3

References 14

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