Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (6): 1398-1403.DOI: 10.16178/j.issn.0528-9017.20240774

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Situation and quality evaluation of soil nutrients of Majia pomelo main producing area in Jiangxi Province

SHAO Xinghua(), CHEN Kai, CAI Jianbin, LIU Yanan   

  1. School of Life Sciences, Shangrao Normal University, Shangrao 334001, Jiangxi
  • Received:2024-10-08 Online:2025-06-11 Published:2025-06-23

Abstract:

Soil samples (0-30 cm) from ten Majia pomelo orchards were collected in four towns of Guangfeng District, Shangrao City, Jiangxi Province, in order to find out the soil fertility status of Majia pomelo orchards. The chemical properties of the soil pH value, organic matter, available nitrogen, available phosphorus, available potassium contents, and cation exchange capacity were measured, and soil fertility characteristics were evaluated by single factor evaluation and comprehensive evaluation. The results showed that average soil pH value in the main production area of Majia pomelo was 5.46, the average cation exchange capacity and organic matter content was moderate, which was 11.66 cmol·kg-1 and 22.64 g·kg-1, respectively. The average contents of available phosphorus and available potassium were 52.60 and 190.38 mg·kg-1, respectively, indicating abundant content. The average content of available nitrogen was 7.80 mg·kg-1, indicating a relative deficiency. The average comprehensive index (IFI) of soil fertility in 10 pomelo orchards was 0.53, 70% of sites classified as grade Ⅱ and Ⅲ, and 30% of pomelo orchards with lower fertility. Ten Majia pomelo orchards are generally lack of nitrogen nutrients, more nitrogen fertilizer should be applied. It is necessary to reduce the amount of phosphorus and potassium fertilizers appropriately, and application of more organic fertilizer is helpful to improve soil fertility and promote soil physical properties.

Key words: Majia pomelo, soil nutrients, fertility, soil evaluation

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