Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (4): 198-205. doi: 10.7668/hbnxb.20192883

Special Issue: Oil crops Soil fertilizer Plant protection

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

Effect of Nitrogen Fertilizer on Soybean Cyst Nematode Disease

JIA Jianping1,2, LI Jinhong1, YU Jingwen2, YU Xiyue2, PENG Deliang2, LI Huixia1, , HUANG Wenkun2,   

  1. 1 College of Plant Protection,Gansu Agricultural University,Lanzhou 730070,China
    2 State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China
  • Received:2022-01-29 Published:2022-08-28
  • Contact: LI Huixia, HUANG Wenkun

Abstract:

In order to explore the control effect of nitrogen fertilizer on soybean cyst nematode disease,pot experiment and field experiment were carried out to analyze the effect of nitrogen fertilizer on the egg hatching,nematode development of soybean cyst nematode and the yield of soybean. Four nitrogen application levels were set as 0.016,0.032,0.048,0.064 g/kg soil,respectively,to analyze the effect of soil eluviating solution and root exudate solution on egg hatching. In the field experiment,four nitrogen application levels were set as 22.50,56.25,67.50,78.75 kg/ha,respectively,to analyze the effect of nitrogen fertilizer on the development of nematode. Treatment without nitrogen fertilizer was used as a blank control in all experiments. The results of pot experiment showed that both soil eluviating solution and root exudate solution could significantly improve egg hatching inhibition rate of H. glycines after nitrogen fertilizer application. The soil eluviating solution of 0.032,0.064 g/kg soil had the best inhibition effect on H. glycines egg hatching,reaching at 34.21% and 29.31%,respectively,the root exudate solution of 0.064 g/kg soil had the best inhibition effect on egg hatching of H. glycines,reaching 55.09%. The field experiment showed that proper application of nitrogen fertilizer could significantly decrease cyst number but increase soybean yield. Treatment with 56.25 kg/ha nitrogen fertilizer had the best control effect on nematodes and the highest yield of soybean,with cyst number decreased by 25.29% and the yield of soybean increased by 14.75%. However,the number of nematode in the control increased by 30.77%. Therefore,application of nitrogen fertilizer is an economical and safe control method to improve the yield and quality of soybean.

Key words: Heterodera glycines, Nitrogen fertilizer, Soil eluviating solution, Root exudate, Nematode control

Cite this article

JIA Jianping, LI Jinhong, YU Jingwen, YU Xiyue, PENG Deliang, LI Huixia, HUANG Wenkun. Effect of Nitrogen Fertilizer on Soybean Cyst Nematode Disease[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(4): 198-205. doi: 10.7668/hbnxb.20192883.

share this article