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灌溉方法灌溉的植株是去雄的矮种椰子,以便培育人工授粉的杂交种。灌溉的基本情况如下:(1)可能蒸散量每日为5毫米;(2)土壤持水量估计为100毫米;(3)当土壤持水量下降至60毫米时进行灌溉;(4)在行间宽10—12米的植带上,用穿孔的臂杆轮流灌溉60毫米水量。灌溉量随每日降雨和可蒸散总量而定。为避免土壤溶液的浓度过高,实际灌溉量应超过可蒸散量。三年来的灌溉量为:1970年12月—1971年4月480毫米,1971年12月—1972年3月480毫米,1972年12月—1973年4月540毫米。3年来的灌溉总量高于缺水量(1970年12月—1971年4月缺水379毫米,1971年12月—
Irrigated plants are poplar-dwarf coconut in order to breed artificial pollinated hybrids. The basic conditions of irrigation are as follows: (1) Possible evapotranspiration is 5 millimeters per day; (2) Soil water holding is estimated at 100 millimeters; (3) Irrigation is performed when the soil water holding capacity is reduced to 60 millimeters; (4) The width of 10-12 meters of planting belt, perforated arm with irrigation 60 mm of water. The amount of irrigation depends on the total daily rainfall and total evapotranspiration. In order to avoid the high concentration of soil solution, the actual amount of irrigation should exceed the evapotranspiration. The amount of irrigation for the past three years was: December 1990-April-April-April 480 mm, December 1971-March 1972 480 mm, December 1972-April 1973 540 mm. The total amount of irrigation over the past three years is higher than the amount of water deficit (December 1970 - April 3771 mm lack of water in April 1971, December 1971 -