|Title:||旱作水稻根系在不同土層吸水量的品種間差異（預報）||Other Titles:||Study on the Water Absorption of Lowland Rice Varieties in Different Soil Layers of Upland (Preliminary Note)||Authors:||吳振能
|Issue Date:||4-Sep-1970||Publisher:||農業試驗所||Journal Volume:||19||Journal Issue:||3||Start page/Pages:||42-47||Source:||農業研究||Abstract:||
The study was conducted at Taiwan Agricultural Research Institute to determine the irrigation method for lowland rice varieties that cultivated on upland.
The three-layer-type auto-irrigators which can measure the amount of water absorbed by rice roots and the development of root system in different soil layers, were used in this study. The soil was divided into three layers of 0-20, 20-40 and 40-60 cm in depth. The soil moisture of very layer was controlled at the level of 75-80% of soil-water-holding-capacity. Nine hills of lowland rice for each of the three varieties in each crop season, wereplanted by direct seeding method on each auto-irrigator in the greenhouse These auto-irrigators were covered with vinyl film so as to stop the water evaporation from their surfaces. The windows of the greenhouse were opened but covered by screens; and several air ventilators were used during day time to minimize the room tempera-ture.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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