ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (4): 124-131. doi: 10.7668/hbnxb.20192160

Special Issue: Corn Soil fertilizer

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Effects of Chemical Fertilizer Combined with Organic Amendments on Soil Fertility and Spring Maize Yield in Mollisol

PANG Na1,2, CHENG Song2, ZHANG Shuimei2, YUAN Jingchao2, LIU Jianzhao2, LIU Songtao2, REN Jun2, LIANG Yao2, CAI Hongguang2   

  1. 1. Agricultural College of Yanbian University, Yanji 133002, China;
    2. Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Key Laboratory of Plant Nutrition and Agro-Environment in Northeast Region Ministry of Agriculture, Changchun 130033, China
  • Received:2021-05-05 Published:2021-08-28

Abstract: To investigate the effects of chemical fertilizer combined with different kinds of organic amendments on soil fertility and spring maize yield in mollisol, which provides theoretical foundation for protection and utilization of mollisol.Five treatments i.e., chemical fertilizer alone(NPK), NPK plus corn stalk(NPK+ST), NPK plus cow manure(NPK+NF), NPK plus chicken manure(NPK+JF) and NPK plus pig manure(NPK+ZF) were selected from a field experiment to monitor contents of soil organic carbon, active organic carbon, available nutrients, and soil enzyme activity at 0-20 cm, 20-40 cm soil layer after five amended years, as well as the annual change in maize yield. The results showed that compared with NPK treatment, NPK+NF and NPK+ZF significantly increased soil organic carbon content at 0-20 cm soil layer by 11.5%, 11.1%, respectively, the application of NPK plus organic amendments significantly increased active organic carbon content at 0-20 cm soil layer with the range of 18.3%-39.2%.Compared with NPK treatment, soil available phosphorus and potassium contents at 0-20 cm soil layer were significantly increased in NPK+NF, NPK+JF and NPK+ZF treatments with the range of 1.19-3.02 times, 14.0%-19.6%. In relative to NPK treatment, cellulase activity at 0-20 cm, 20-40 cm soil layer were significantly increased in NPK+ST, NPK+NF and NPK+ZF treatments with the range of 15.7%-29.3% and 19.4%-41.7%, NPK+JF and NPK+ZF significantly increased the urease activity at 0-20 cm soil layer by 16.0% and 12.1%, the activity of invertase and phosphatase at 0-20 cm and 20-40 cm soil layer was significantly increased in organic amended treatments, with the range of 47.3%-126.0% and 19.0%-31.4% in invertase activity, respectively, and NPK+ZF treatment had greater phosphatase activity than others in both soil depths. During the five years, the average maize yield was increased under combined application of chemical fertilizer and organic amendments in the range of 4.82%-11.70%, as compared with NPK, and the highest average yield was found in NPK+ZF treatment. Therefore, organic amendments could effectively improve the level of soil organic carbon nutrient supply, and enzyme activity in topsoil of mollisol, and subsequently increase the maize yield.

Key words: Spring maize, Straw, Organic manure, Soil organic carbon, Available nutrients, Soil enzyme activity

CLC Number: 

Cite this article

PANG Na, CHENG Song, ZHANG Shuimei, YUAN Jingchao, LIU Jianzhao, LIU Songtao, REN Jun, LIANG Yao, CAI Hongguang. Effects of Chemical Fertilizer Combined with Organic Amendments on Soil Fertility and Spring Maize Yield in Mollisol[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(4): 124-131. doi: 10.7668/hbnxb.20192160.

share this article