"Revolving irrigation" refers to the method of sharing water whereby districts or distribution channels receive water in turn. "Intermittent irrigation" refers to lengthening the periods between which water enters the distribution channels. "We're constantly researching how long rice paddies can go without water before the crop shrivels, and the effect that withholding water has on crop quality and yields," Wu says.
「輪流灌溉」以各區域輪流或渠圳間輪流的方式配水；「間歇灌溉」是拉大灌溉的期距，「我們一直都在研究水稻可以缺水幾天不會枯萎，對作物品質和產量又有什麼影響，」吳玉土說，至於旱田則以「噴灌」、「滴灌」來節省用水。