HUBEI AGRICULTURAL SCIENCES ›› 2023, Vol. 62 ›› Issue (1): 77-83.doi: 10.14088/j.cnki.issn0439-8114.2023.01.012

• Resource & Environment • Previous Articles     Next Articles

Effects of high-carbon biochar-based fertilizer combined with microbial agent on soil fertility and yield-quality of tobacco

XU Feng-dan1, LI Liang1, ZANG Xiang1, SI Xian-zong1, SUO Yan-yan1, CHENG Pei-jun1, LI Hong-liang2, LI Jian-hua2   

  1. 1. Institute of Plant Nutrition, Agricultural Resources and Environmental Science, Henan Academy of Agricultural Sciences, Zhengzhou 450002,China;
    2. Tobacco Company of Xuchang, Xuchang 461000,Henan,China
  • Received:2021-12-15 Online:2023-01-25 Published:2023-03-07

Abstract: A randomized block design was carried out to study the effects of high-carbon biochar-based fertilizer with different microbial agents on soil fertility and tobacco yield and quality. The results showed that the high-carbon biochar-based fertilizer combined with Bacillus amyloliquefaciens or Trichoderma viride could increase the number of soil bacteria and fungi, and the plant height, stem circumference, maximum leaf area, dry matter accumulation, yield, output value of tobacco and the proportion of medium and high grade tobacco compared with the conventional fertilization control(T1). Among them, conventional fertilization+high-carbon biochar-based fertilizer+Bacillus amylolyticus+Trichoderma viride(T5) treatment had the best effect on improving the yield and quality of tobacco leaves, and the yield, output value of tobacco and the proportion of medium and high grade tobacco increased by 25.96%, 35.69% and 12.13% respectively compared with T1 treatment. Compared with T1, T5 treatment could also increase soil water content, organic matter content, ammonium nitrogen content, available sulfur content and soil microbial biomass carbon, nitrogen and phosphorus content. Therefore, high-carbon biochar-based fertilizer combined with Bacillus amyloliquefaciens and Trichoderma viride could effectively improve the biological characteristics of tobacco soil and enhance the yield and quality of tobacco leaves.

Key words: tobacco, high-carbon biochar-based fertilizer, microbial agent, soil fertility, yield, output value

CLC Number: