Effect of Regulated Deficit Drip Irrigation on Economic Yield and Water Use Efficiency of Processing Tomato Mulched with Plastic Film
Abstract：Effect of deficit water regulation on soil moisture,plant height,dry matter accumulation,economic yield,water use efficiency,and irrigation water use efficiency was studied through experiment of regulated deficit drip irrigation in different growth period of processing tomato mulched with plastic film.The result showed that regulated deficit drip irrigation with 55% of water content in field capacity during seedling could not only decrease total irrigation water,water consumption,and soil moisture before and after transplantation,but also significantly（p0.05） increase fruit number per plant,fruit weight per plant,economic yield,irrigation water use irrigation,and water use efficiency of processing tomato,while the result was significantly（p0.05） different to that mentioned above for the water deficit regulation in flowering and fruiting,especially in the former.The economic yield was significantly（p0.05） increased while the water use efficiency and irrigation water use efficiency were significantly（p0.05） decreased without water deficit regulation and that merely regulating water deficit at harvesting.
Keywords：processing tomatoregulated deficit drip irrigationmulched with plastic filmeconomic yieldwater use efficiencydry matter accumulation
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)