00844nam a2200193Ia 4500 CTU_164675 210402s9999 xx 000 0 und d 631.587 P964 Producing more rice with less water from irrigated systems L.C. Guerra ... [et al.] Colombo, Sri Lanka International Water Management Institute 1998 This paper reviews the literature on irrigation efficiency and on the potential for increasing the productivity of water in rice-based systems. It stresses the continuing confusion over the concepts of irrigation efficiency and water productivity. Irrigation water,Rice,Agricultural productivity Irrigation Bạch Trúc Trung tâm Học liệu Trường Đại học Cần Thơ