Field experimental study on water consumption and drip emitter selection of strawberry in solar greenhouse
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Abstract:
In solar greenhouse, the evapotranspiration ( ET ) of Strawberry was investigated by the large scale weighting lysimeter method under drip irrigation. A statistic ET model was established with meteorological parameter, and crop coefficients and crop-pan coefficients were presented for each stage, respectively. We divided strawberry growth period into four stages, that were floral bud growing period, over-wintering period, full fruiting period, later fruiting period based on the character of water consumption. The results,1.Facilities of strawberry growth period of the water consumption intensity of whole growth period showed a trend of "U" type change, including over-wintering stage minimum water consumption, the strawberry seasonal ET was 406 mm and the seasonal average ET rate was 1.55 mm/d;2.Correlation analysis showed that leaf area index of strawberry water consumption intensity affected;3.Dripper spacing about 20cm is propitious to irrigation for strawberry.
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