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Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (8): 1596-1601.DOI: 10.3969/j.issn.1000-2561.2020.08.013

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Application of Two Soil Conditioners in Alluvial Sandy Soil of Meizhou Tobacco-growing Area

LI Jiqin1,YANG Shaohai1,HUANG Zhenrui1,*(),LU Yusheng2,GU Wenjie2,LI Shuling1   

  1. 1. Crops Research Institute, Guangdong Academy of Agricultural Sciences / Key Laboratory of Crop Genetic Improvement of Guangdong Province / Guangdong Provincial Engineering & Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Guangzhou, Guangdong 510640, China
    2. Agricultural Resources and Environment Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640
  • Received:2019-10-16 Revised:2019-12-06 Online:2020-08-25 Published:2020-09-17
  • Contact: HUANG Zhenrui

Abstract:

The field application effect of tobacco yield, quality and physical and chemical properties of soil conditioners in the alluvial sandy soil in Meizhou tobacco area was studied. Both conditioner I and conditioner II significantly increased yield, output value, ratio of high quality tobacco and average price. The yield and output value of conditioner I was 30.42% and 57.56% higher than that of the control, and conditioner I significantly reduced the incidence of tobacco bacterial wilt and tobacco mosaic virus. Conditioner I increased soil pH by 1.42 compared with the control, and the content of available potassium, exchangeable magnesium and exchangeable calcium in conditioner I treatment was 13.21%, 63.21% and 4.9 times higher than that of the control. Both conditioners increased the number of bacteria and actinomycetes in the soil. Conditioner I significantly increased the activity of soil invertase, phosphatase, urease and dehydrogenase.

Key words: soil conditioner, flue-cured tobacco, alluvial sandy soil, physical and chemical properties, yield and quality

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