关键词: 夏橙绿斑病, 夏橙绿斑病, 虚幻球藻, 生长特性

Abstract: 【Objective】The objective of this study was to explore the effect of the different soil water content on vegetable yield and water drainage amount in vegetable field, and to proved a firm scientific foundation for water management in vegetable product.【Method】A field experiment was conducted in an intensively irrigated vegetable field for three consecutive years. Soil water content was monitored using TDR and water drainage amount was calculated by field orientation flux method, field water drainage and vegetable yield was compared under the different water treatments. 【Result】Field water drainage was 982 mm and 230 mm and 468 mm respectively in the throughout experiment, were 748 mm and 144 mm and 293 mm that was of 36% and 9% and 17% of applied water amount during vegetable growth period under traditional and improved and filled water treatments. Yield of vegetable was no significant different under the different water treatments but was lower in the traditional than that of the others water treatment and was significant different during the period of Cauliflower in 2002. 【Conclusion】In vegetable product extended value was very high for improved water management that soil water moisture was kept between 50% and 80% of plant-extractable soil water in the rooting zone of the vegetable plants.