›› 2018, Vol. 30 ›› Issue (1): 117-122.DOI: 10.3969/j.issn.1004-1524.2018.01.15

• Environmental Science • Previous Articles     Next Articles

Effects of silicon, calcium, potassium and magnesium fertilizer on acid paddy soil improvement in Zhejiang Province

HAN Kefeng1, CHEN Yuping2, HU Tiejun2, ZHANG Feng2, ZHOU Fei2, CHENG Jianqiu3, WU Lianghuan1, *   

  1. 1. Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;
    2. Agricultural Technology Station of Yuyao City, Yuyao 315400, China;
    3. State Key Laboratory of Nutrition Resources Integrated Utilization, Kingenta Ecological Engineering Co., Ltd, Linshu 276700, China
  • Received:2017-06-23 Online:2018-01-20 Published:2018-02-09

Abstract: In order to alleviate the acidification of paddy soil in Zhejiang Province, a three-year field plots experiment was conducted to investigate the effects of silicon, calcium, potassium and magnesium fertilizer on rice yield and soil nutrient contents. The main results showed that application of silicon, calcium, potassium and magnesium fertilizer could increase rice yields, and the optimum application rate was 1 500 kg·hm-2. Meanwhile, this fertilizer also could enhance soil pH value, decrease exchangeable hydrogen and exchangeable aluminum contents, increase available silicon and base cation.

Key words: acid soil, soil conditioner, soil amendment, fertilizer

CLC Number: