Your search found 473 records
1 Nayakakorala, H. B.; Hemakumara, H. M. 1991. Effect of length of land preparation period on water use, weed growth and grain yield of lowland broadcast rice. Agricultural Engineering, 3(1):7-12.
(Location: IWMI-HQ Call no: IIMI 631.7.2 G744 NAY Record No: H013009)
(0.37 MB)
2 Kitamura, Y.; Low, K. L.; Hor, T. L. 1992. Water use efficiency in a tertiary development area in low and flat paddy land in the tropics. JARQ, 26(3):214-221.
Paddy fields ; Rice ; Irrigation efficiency ; Irrigation water ; Water use efficiency ; Water balance / South East Asia / Malaysia
(Location: IWMI-HQ Call no: P 2846 Record No: H013151)
Rapid saturation and flooding of paddy fields are essential for timely land preparation for the dry season (first season) crop when rice double cropping is adopted on flat lowland. Tertiary development was a priority project in the Muda area to facilitate water distribution and shorten the presaturation period by increasing the canal density. In order to evaluate the tertiary development properly, a simple method was devised for estimating the irrigation use efficiency and rainfall use efficiency.
3 Tomita, M.; Yamaji, E. 1993. Environmental planning concept based on a survey of rainfed and irrigated rice growing villages: Modernization of agricultural water use. Journal of Irrigation Engineering and Rural Planning, 24:69-76.
Rice ; Paddy fields ; Environmental control ; Crop production ; Water use ; Modernization ; Rain-fed farming ; Water management ; Irrigated farming / South Asia / South East Asia / India / Nepal / Thailand / Indonesia / Tamil Nadu
(Location: IWMI-HQ Call no: PER Record No: H013191)
4 Maruyama, T. 1993. A series of fundamental studies on individual hydrologic processes. Journal of Irrigation Engineering and Rural Planning, 24:77-78.
(Location: IWMI-HQ Call no: PER Record No: H013192)
5 Mizutani, M.; Rath, B.; Mohanty, B. P.; Kalita, P. K. 1991. Estimation of effective rainfall in wet season paddy: Observational studies on water requirement of lowland rice in Thailand (II) Irrigation Engineering and Rural Planning, 21:15-28.
Irrigation practices ; Irrigation requirements ; Irrigated farming ; Water balance ; Water requirements ; Simulation models ; Rain ; Paddy fields ; Rice / Thailand
(Location: IWMI-HQ Call no: P 2919 Record No: H013371)
6 Sakthivadivel, R.; Merrey, D. J.; Fernando, N. 1993. Cumulative relative water supply: a methodology for assessing irrigation system performance. Irrigation and Drainage Systems, 7(1):43-67.
Relative water supply ; Irrigation systems ; Irrigation management ; Performance evaluation ; Paddy fields ; Water delivery performance ; Distributary canals / Sri Lanka / Kirindi Oya / Uda Walawe / Kalankuttiya / Dewahuwa
(Location: IWMI HQ Call no: PER Record No: H013372)
(1.39 MB)
This paper discusses the usefulness and limitations of using the concept of Relative Water Supply (RWS) for evaluating the performance of irrigation systems, with special reference to systems irrigating rice. It then describes and demonstrates the use of a modification of RWS called Cumulative Relative Water Supply (CRWS), which can be used in conjunction with RWS. The advantage of CRWS is that it provides a measure of the cumulated RWS throughout a season, both in absolute terms at any given time, and in terms of the overall seasonal trend. It allows comparison of performance of an irrigation system or subsystem both to the target, and to other systems or subsystems. It can therefore be used both as an analytical tool by researchers, and as an operational tool by managers. The use of CRWS in conjunction with RWS is illustrated with examples from Sri Lanka.
7 Chiba, T. 1983. Water management and land consolidation in paddy fields. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.101.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013566)
8 Ezaki, K. 1983. Irrigation and drainage systems in paddyfield regions. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.102-125.
Paddy fields ; Irrigation systems ; Drainage ; Irrigation canals ; Water management ; Water control ; Open channels ; Pipes ; Land reclamation / Japan
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013567)
9 Furuki, T. 1983. Water movement and requirements in paddyfields. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.126-145.
Water requirements ; Paddy fields ; Evapotranspiration ; Percolation ; Soil water movement ; Water control ; Water balance / Japan
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013568)
10 Negishi, H. 1983. Consolidation of farmland conditions in paddyfields. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.146-159.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013569)
11 Hasegawa, S. 1983. Methods of measuring groundwater level. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.354-363.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013580)
12 Nakayama, H. 1983. Methods of surveying and measuring ground surface conditions in paddyfield. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.374-383.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013582)
13 Nakayama, H. 1983. Methods of measuring soil bearing capacity. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.384-397.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013583)
14 1983. Relationship of rice cultivation and water management. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.437-542.
Rice ; Paddy fields ; Agricultural production ; Crop yield ; Water management ; Soil classification ; Farm management ; Statistics / Japan
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013585)
15 1983. Water management and land consolidation in paddyfields. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.543-652.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013586)
16 1983. Survey and measurement methods for water management of paddyfields. In Nakagawa, S.; Nakagawa, M.; Matsumoto, A.; Chiba, T.; Iwamoto, S.; Iwasaki, K.; Matoba, Y.(Eds.), Advanced rice cultivation, irrigation and drainage technology in Japan. Tokyo, Japan: Fuji Marketing Research Co. pp.821-829.
(Location: IWMI-HQ Call no: 631.7.2 G696 NAK Record No: H013598)
17 Deleus, E.; Siripala, G. D.; Madduma Bandara, C. M. 1988. Farmers' adjustment to an environmental hazard-breach of a village tank. Modern Sri Lanka Studies, 3(1):71-81.
Tank irrigation ; Small scale systems ; Environmental effects ; Farmers' attitudes ; Rice ; Paddy fields / Sri Lanka
(Location: IWMI-HQ Call no: P 3259 Record No: H013737)
18 Bruns, B. 1987. Invisible irrigation: Water management in Northeast Thailand. FMIS Newsletter, No.2:13-15.
Irrigation management ; Water management ; Villages ; Rice ; Paddy fields ; Privatization / Thailand
(Location: IWMI-HQ Call no: PER Record No: H013931)
(0.29 MB)
19 Castaneda, A. R.; Bhuiyan, S. I. 1991. Nitrate-nitrogen concentrations in shallow groundwater underneath ricefields. Philippine Journal of Crop Science, 16(2):57-62.
(Location: IWMI-HQ Call no: P 3414 Record No: H014297)
20 Suzuki, M. 1994. Outline of the new design criteria for paddy field irrigation in Japan. Journal of Irrigation Engineering and Rural Planning, 26:1-4.
Design criteria ; Paddy fields ; Rice ; Water use ; Water requirements ; Crop-based irrigation / Japan
(Location: IWMI-HQ Call no: PER Record No: H014378)
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