Comprehensive Evaluation of Tobacco-Growing Soil Fertility in Typical Tobacco-Growing Areas of Yunnan

DOI

10.2991/978-94-6463-910-0_22How to use a DOI?

Keywords

tobacco-growing areas; soil fertility; tobacco; comprehensive evaluation

Abstract

Soil fertility is a determinant factor for tobacco yield and quality. As a premier tobacco-producing region in China, Malong County of Qujing Municipality necessitates continuous soil fertility monitoring and adaptive fertilization management. This study conducted a comprehensive fertility assessment by analyzing pH, organic matter (OM), total nitrogen (TN), total phosphorus (TP), total potassium (TK), available phosphorus (AP), and available potassium (AK) in tobacco-cultivated soils. The results demonstrated generally appropriate levels of OM, TN and TP, with abundant AK content (32.26% of soils showing exceptionally high levels) - conditions favorable for tobacco cultivation. Compared with 2023, both soil pH and nutrient contents increased in 2024. The proportion of soils suitable for tobacco growth, with pH values suitable for tobacco growth, OM content, TN content, and TP content, increased to 22.58%, 51.61%, 54.84%, and 58.06% respectively; the proportion of soils with extremely high AK content increased to 32.26%. The TK and AP contents of most soils were at a relatively low level. The integrated fertility evaluation indicated 64.51% of soils reached Grade I-II quality in 2024, confirming an overall medium-to-high fertility status. Compared with 2023, the soil nutrient condition in 2024 has improved. However, the problems of soil acidification and low TK and AP content remain prominent. Measures such as adding lime and biochar need to be taken to improve the soil and enhance the yield and quality of tobacco.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Rong Zeng
AU  - Yongzhan Cai
AU  - Ruiqi Peng
AU  - Junnan Hua
AU  - Yanxia Li
AU  - Xiaohua Zhu
AU  - Ronghui Wang
AU  - Jing Shi
PY  - 2025
DA  - 2025/12/15
TI  - Comprehensive Evaluation of Tobacco-Growing Soil Fertility in Typical Tobacco-Growing Areas of Yunnan
BT  - Proceedings of the 2025 2nd International Symposium on Agricultural Engineering and Biology (ISAEB 2025)
PB  - Atlantis Press
SP  - 202
EP  - 212
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-910-0_22
DO  - 10.2991/978-94-6463-910-0_22
ID  - Zeng2025
ER  -