Đánh giá khả năng giữ nước và một số đặc tính vật lý đất trên một số cây trồng tại huyện Phú Quốc, tỉnh Kiên Giang

Le résumé fourni par la source

The research was carried out to evaluate physical soil properties, soil water holding capacity and variation of available water in the dry season in typical agricultural soils (black pepper, durian and vegetable growing soils) at Phu Quoc district, Kien Giang province. The studied results showed that the soils have coarse texture (sandy loam) and high staturated hydraulic conductivity (81-2,285 mm/hour). In general, the bulk density of the studied soils (1.29 – 1.50 g/cm3) tended to increase over depths, whilst soil porosity (40.7 – 50.8%) tended to decline over depths. Soil available water content of the top soil layer (0-20 cm) in the dry season (end of December to March) was very low (27.1 – 30.5%) in January. The total available water within the depth of 100cm was below 30% (300 mm/m); therefore, the water holding and supplying capacity of the soils were low.

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