ASSESSMENT OF SOIL PHYSICOCHEMICAL PROPERTIES  IN PRIMARY VEGETABLE CROP AREAS OF THE MEKONG RIVER

Nguyễn Thị Phương

doi:10.34238/tnu-jst.11812

ASSESSMENT OF SOIL PHYSICOCHEMICAL PROPERTIES IN PRIMARY VEGETABLE CROP AREAS OF THE MEKONG RIVER

About this article

Received: 04/01/25 Revised: 29/06/25 Published: 29/06/25

Authors

Nguyen Thi Phuong , Dong Thap University

Abstract

Vegetable crops account for a large portion of the total agricultural area in the Mekong Delta. Over time, the quality of soil can be changed, so it is necessary to assess the primary physico-chemical soil properties in these cultivations. In some areas where vegetables have been cultivated continuously for many years (over 10 years), soil samples were collected in depth of 0-20 cm to analyze soil properties such as structural aggregation, soil texture, pH, and organic matter content. Research results indicate that pH values fluctuated from acidic to slightly acidic. The organic matter content was evaluated as poor. Soil textures are predominantly composed of clay particles. Structural aggregate stability varies according to the cultivation area, with the highest stability found in vegetable-growing soil in Long My district, and the lowest overall in Lap Vo district. Overall, the soil quality tends to adversely affect vegetable crop cultivation, hearby people need to supplement with organic fertilizers or return plant residues to help stabilize cultivation for subsequent crops.

Keywords

Organic matter; Soil structure; pH index; Soil texture; Vegetable crop cultivation

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DOI: https://doi.org/10.34238/tnu-jst.11812

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