Meteological Service for WaterNeeding and WaterSaving Irrigation of Vegetable Crops in Flatland Area of Zhangjiakou
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Abstract:
According to the formula recommended by the Grain and Agricultural Organization of UN for calculating the quantity of heat radiation of crops, the quantity of water needed by the vegetable crops in the flatland area of Zhangjiakou is calculated. The results from the demonstration fields show that drip irrigation under mulch is the best way for saving water,spraying irrigation the second, then piping irrigation. The meteological service for mediating and controlling watersaving irrigation, giving the quantities of average waterneeding irrigation and irrigation in different watersaving patterns, is described. The results show that the irrigation, according to the water needing of crops and meteological conditions, can save water by 40% without investment, while engineering watersaving, combined with meteological service, can save water by 40% to 70%, which is the most economical way for saving water.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.