Integrated Nutrient and Water Management for Improved Rice Production in Rainfed Sandy Soil of Central Vietnam

Abstract

Rice is an important food crop in rainfed lowland area of Central Vietnam. However, there is still problem in nutrient and water management for rice in this area. This study was conducted to evaluated the integrated management of nutrient and water in rainfed lowland sandy soil of Thua Thien Hue province, Central Vietnam. Field experiments was tested in two seasons in 2022 which arranged in a split plot with 2 factors (water management and fertilizer combinations). Results indicated that application of site-specific nutrient management (SSNM) with water supplementary obtained the highest rice yield (4.11 – 4.62 t/ha), soil properties also improved after experiment. In order to maximize profit per unit of area for rice production to overcome the yield gap and soil fertility as well as water problems in the region, SSNM application is recommendation.