Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (4): 922-930.DOI: 10.3969/j.issn.1004-1524.2023.04.19

• Environmental Science • Previous Articles     Next Articles

Effect of organic-inorganic compound fertilizer on wheat growth, nutrients and heavy metal content of soil and wheat

LU Shuai1(), LUO Xiaogang2, LIU Quanwei2, ZHANG Yi3, MENG Yanghao1, LI Jie1, ZHANG Jinglai1,*()   

  1. 1. School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
    2. Jiangxi Shengjian Fertilizer Co., Ltd., Jiujiang 332600, Jiangxi, China
    3. Hefei Institute of Intelligent Machinery, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2022-05-17 Online:2023-04-25 Published:2023-05-05

Abstract:

To investigate the effect of organic-inorganic compound fertilizer on wheat growth, nutrients and heavy metal content of soil and wheat, Hebei winter wheat was used to conduct the field experiments. Six treatment groups were set up in this experiment: CK (without fertilizer), FP (regular fertilizer), SJ40 (600 kg·hm-2 organic-inorganic compound fertilizer+225 kg·hm-2urea as additional fertilizer), SJ60 (900 kg·hm-2 organic-inorganic compound fertilizer+225 kg·hm-2urea as additional fertilizer), SJ80 (1200 kg·hm-2 organic-inorganic compound fertilizer+225 kg·hm-2urea as additional fertilizer), SJ40+30 (600 kg·hm-2 organic-inorganic compound fertilizer+450 kg·hm-2 organic-inorganic compound fertilize as additional fertilizer). Results showed that wheat yield gradually increased with the increase amount of organic-inorganic compound fertilizer and reached a maximum of 9.26 t·hm-2, inorganic nitrogen, effective phosphorus, fast-acting potassium and organic matter content in the soil showed an increasing tendency compared with the control group. The use of organic-inorganic compound fertilizers also significantly reduced the contents of Cd and Pb in wheat grain, with maximum reductions of 28.8% and 30.3%, respectively. In conclusion, the rational use of organic-inorganic compound fertilizers could increase wheat yield, improve soil properties, and reduce the content of heavy metals in wheat, which had great application prospects in agricultural production.

Key words: organic fertilizer, wheat, soil nutrients, heavy metals

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