Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (4): 993-998.DOI: 10.16178/j.issn.0528-9017.20240531

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Soil nutrient characteristics and fertility evaluation of tobacco⁃growing regions in Heilongjiang Province

LI Hanwen1,2,3(), HUANG Qinchao2, JIAO Yusheng2, WANG Peng1, ZHANG Yungui3, LI Zhihong3, LIU Qingli3, WANG Ning1, JIANG Yuzhou1()   

  1. 1.Heilongjiang Bayi Agricultural University,Daqing 163319,Heilongjiang
    2.Institute of Tobacco Science,China National Tobacco Corporation Heilongjiang Branch,Harbin 150010,Heilongjiang
    3.Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081
  • Received:2024-07-03 Online:2026-04-11 Published:2026-04-17
  • Contact: JIANG Yuzhou

Abstract:

In order to investigate the soil fertility status in the tobacco-growing regions of Heilongjiang Province and provide a reference basis for soil nutrient resource management,this study collected soil samples from 17 tobacco-growing regions in Heilongjiang Province. The evaluation indicators measured included pH value,and contents of organic matter,alkali-hydrolyzable nitrogen,available phosphorus,available potassium,water-soluble chlorine,and available zinc. The weight of each indicator was calculated through principal component analysis,and all indicators were normalized using a membership function. The soil fertility index(SFI) was then calculated and evaluated accordingly. The results show that the overall fertility level in the tobacco-growing regions of Heilongjiang Province is relatively high,with 71% of the samples classified as having high fertility and 29% as having medium fertility. Among them,Ning'an exhibited the highest fertility,with SFI of 0.791. The overall average SFI in Heilongjiang Province is 0.645,indicating a relatively high fertility level,classified as Grade Ⅱ(suitable). The variation coefficients of the evaluation indicators ranged from 12.51% to 77.38%,with an average variation coefficient of 42.27%,indicating high variability. For the tobacco-growing regions in Heilongjiang Province,it is recommended to adjust soil pH value,control the application of organic and nitrogen fertilizers,appropriately reduce the use of potassium,phosphorus,and zinc fertilizers,and reasonably utilize chlorine fertilizers.

Key words: tobacco-growing regions, nutrient characteristic, soil fertility evaluation, Heilongjiang Province

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