subsurface irrigation

地下灌溉

  • We should be pay attention to preventing salt accumulation and reducing the amount of applying nitrogen fertilizer under long-term subsurface irrigation .

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  • Based on the principle of soil water dynamics a two-dimension mathematical model of soil water movement is presented for subsurface irrigation .

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  • Effects of Subsurface Irrigation Moisture Ratio on Tomato Growth and Water Requirement Characteristics

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  • These and other major wetlands have lost most of their historic supplies of water and some have also experienced serious impacts from contaminated subsurface irrigation drainage .

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  • Effect of mulching with plastic film and subsurface irrigation on wheat yield and soil factors in dryland

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  • In the same nitrogen amount sectional subsurface irrigation treatment is higher than common subsurface irrigation .

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  • Compared with common subsurface irrigation sectional subsurface irrigation is higher . 3 .

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  • Analysis in Application of the Textile Permeable Pipes in Subsurface Irrigation

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  • Experimental Study on Performances of Several Watering Devices for Subsurface Irrigation

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  • Preliminary Experimental Study on Discharge Characters of a Subsurface Irrigation Tube

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  • In the same nitrogen amount cucumber yield and water production efficiency of sectional subsurface irrigation treatment are significantly higher than that of common subsurface irrigation .

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  • Study on two-dimensional flow of water in unsaturated soil under subsurface irrigation

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  • Experiment Using Soil Water Dynamics for Non-pressure Subsurface Irrigation in Crop Root

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  • Parameters and irrigation quantity or scheduling of subsurface irrigation and technology of subsurface irrigation for soil water control in humid region are discussed .

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  • Finite Element Modeling of Soil Water Movement Under Subsurface Irrigation With Porous Pipe and Its Application

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  • Effect of subsurface irrigation and infiltration depth on movement of soil total salt and its accumulation in protected field was studied . Tomato used as experimental plant .

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  • The subsurface irrigation and drip irrigation decreased significantly the irrigation rate and increased significantly water use efficiency .

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  • Effect of subsurface irrigation quota on salt accumulation of soil in plastic greenhouse cultivated with tomato

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  • Water-saving Effects of Different Soil Moisture on Pepper under Subsurface Irrigation

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  • Effect of control lower limit of subsurface irrigation on phosphorus distribution in soil profiles of protected land

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  • It must strength the technical research to support techniqes for subsurface irrigation engineering construction .

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  • Application of Subsurface Irrigation in Vegetable Greenhouse Ex-situ conservation has also been carried out and living specimens are displayed in the Shing Mun Arboretum .

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  • The methods how to deal with the pipe boundary condition and how to calculate were discussed detailedly . Alternative direction implicit technique ( ADI ) that is used to solve the subsurface irrigation mathematical model was introduced minutely .

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  • A mathematical model whose variable is water head can simulate the effects of water head and properties of subsurface irrigation pipe on irrigation .

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  • Thus the basis is founded of simulating soil water movement underthe condition of the subsurface irrigation .

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  • The thesis will have magnitude meaning in searching soil moisture kinetic theory and guiding agricultural subsurface irrigation .

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  • Study on the Influences of Soil Water Movement to Subsurface Irrigation Performance

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  • Effect of Subsurface Irrigation Scheduling on Soil Urease and Catalase Activity in Protected Field

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