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- W2354735281 abstract "[Objective] The aim was to investigate water-demand regulations and water use efficiencies under different irrigation systems of oolong tea.[Method] Taking 2 years old Tie Guanyin tea(Camellia sinensis(L.) O.Kuntze) as test materials,water-demand regulations of the oolong tea,irrigation water amount,effective rainfall and the scale of water-saving irrigation under the method of micro-irrigation were studied.[Result] The results showed that May,July to October were the peak water demand of Oolong tea,accounting for annual water demand of 59.15%.Under controlling irrigation system,the irrigation quota was 551.4 mm,and the total rainfall utilization efficiency was 33% from 1983 to 2009.The rainfall utilization efficiency of heavy,middle and light rain were 17%,50% and 77% respectively.With the increasing of rainfall,the water-demand amount was decreasing,the rainfall utilization amount was increasing,but the rainfall utilization efficiency was decreasing.[Conclusion] Oolong tea optimum irrigation amount was the field capacity while the soil moisture of 40-50 cm soil layer reached 75%.The critical period of growing water demand was from July to October,the appropriate irrigating water quota was 21.0 mm,irrigation frequency was 10 to 15 times,and irrigation cycle was 8-12 d." @default.
- W2354735281 created "2016-06-24" @default.
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- W2354735281 date "2010-01-01" @default.
- W2354735281 modified "2023-09-23" @default.
- W2354735281 title "Water-demand Regulations and Irrigation Program of Olong Tea under Condition of Water-saving Irrigation System" @default.
- W2354735281 hasPublicationYear "2010" @default.
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