Journal of Tianjin Agricultural University ›› 2024, Vol. 31 ›› Issue (1): 1-5.doi: 10.19640/j.cnki.jtau.2024.01.001

• Researches and Scientific Notes •     Next Articles

Effects of insect feces organic fertilizer on physical and chemical properties of tobacco-planting soil and tobacco growth

Zhao Yi, Geng Weina, Mao Zhiyue, Xu Xiaoyan, Wang XiaoboCorresponding Author   

  1. College of Agronomy and Resources Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2022-04-09 Online:2024-02-29 Published:2024-04-02

Abstract: Pot experiment of flue-cured tobacco ‘Zhong Yan 100’, carried out to explore the effects of earthworm casts fertilizer, white grubs feces fertilizer and black soldier fly feces fertilizer on soil physicochemical properties and tobacco growth, with traditional sesame cake fertilizer as control. The results showed that the contents of available phosphorus and available potassium in soil and the activities of phosphatase, urease and invertase in soil treated with black soldier fly feces fertilizer increased by 65.66%, 23.36%, 12.20%, 24.39% and 23.61%, respectively, compared with those treated with sesame cake fertilizer. The contents of available phosphorus and available potassium and urease activity in soil treated with white grubs feces fertilizer were not significantly different from those treated with sesame cake fertilizer, while the contents of soil organic matter and alkali-hydrolyzable nitrogen and the activities of soil phosphatase and invertase were decreased. The soil nutrient indexes and enzyme activities of earthworm casts fertilizer were significantly lower than those of sesame cake fertilizer. The soil pH of the three kinds of insect feces organic fertilizer were increased, while the soil EC of the white grubs feces fertilizer and the black soldier fly feces fertilizer were increased. The tobacco plant height, maximum leaf area, root vigor and root dry weight of black soldier fly feces fertilizer were higher than those of sesame cake fertilizer, while those of earthworm casts fertilizer and white grubs feces fertilizer were lower than those of sesame cake fertilizer. At the same time, the contents of nicotine and sugar in tobacco leaves were increased by the treatment of black soldier fly feces fertilizer and white grubs feces fertilizer, and the contents of potassium, chlorine and potassium to chlorine ratio in tobacco leaves were in or close to the appropriate range, and the quality was better. In conclusion, among the three kinds of insect feces organic fertilizer treatments, black soldier fly feces fertilizer had the best fertilizer effect, which was superior to traditional sesame cake fertilizer, improved the nutrient content of tobacco soil, enhanced soil enzyme activity, and promoted tobacco growth and quality improvement.

Key words: insect feces organic fertilizer, tobacco, tobacco-planting soil, physicochemical properties, growth

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