Your search found 9 records
1 Reuss, J. O.. 1980. Matching cropping systems to water supply using an integrative model. Fort Collins, CO, USA: Colorado State University. xiv, 201 p. (Water management technical report no. 62)
(Location: IWMI-HQ Call no: 631.7.2 G000 REU Record No: H0347)
This paper describes the process of matching cropping systems to available irrigation water supply. The Penman and the Jensen-Haise methods for calculation of potential evapotranspiration (Etp) from climatic parameters are presented, along with methods for calculating crop water requirements once Etp is known. The principles of determining irrigation water requirements of single crops and of combinations of crops is given. Examples given are from Pakistan. Due to the complexity of the process a simulation model was developed to match cropping systems to water supply. Model structure is described and examples are shown for both single and multiple cropping systems. Details of the methods of calculation along with program documentation and listings are appended.
2 Reuss, J. O.. 1980. Optimization of lengths of alternative watercourse improvement programs. Fort Collins, CO, USA: Colorado State University. xi, 49 p. (Water management technical report no. 27)
(Location: IWMI-HQ Call no: 631.7.6.2 G730 REU Record No: H0346)
3 Bowers, S. A.; Clyma, W.; Johnson, S. H.; Kemper, W. D.; Reuss, J. O.. 1977. Watercourse improvement in Pakistan: Pilot study in cooperation with farmers at Tubewell 56L. Fort Collins, CO, USA: Colorado State University. xv, 93p. (Water management technical report no.45)
(Location: IWMI-HQ Call no: 631.7.7 G730 BOW Record No: H0335)
Over half of the water supplied to the watercourse at Tubewell 56L was lost before it reached the farmer's fields. This loss was primarily through the upper porous portions of the banks and in the vicinity of junctions where banks were thin. The 35 farmers in the 900-acre area served by this watercourse were motivated to organize themselves to rebuild their own earthen watercourse, according to specifications drawn up by Pakistani engineers. Low cost concrete diversion structures were developed and installed at junctions to eliminate continued burrowing of soil and degradation of banks near the junctions. The improvements reduced losses to about one-half their previous values and increased deliveries to the fields by over 50 percent. This watercourse improvement appears to be an ideal component for a development program designed to increase crop production. However, farmers require further information on how to use this water and other inputs to optimize crop production if they are to obtain full benefits from this extra water.
4 Johnson, S. H. III; Reuss, J. O.. 1984. Economics of changes in irrigation management in Pakistan: An integrative modeling approach. Water International, 9:66-71.
(Location: IWMI-India Call no: 631.7.6 G730 JOH Record No: H0811)
Using a computer model, alternative irrigation management systems are simulated for the Punjab, the largest state in Pakistan. Economic results indicate that canal closure in February to April, rather than December and January, would increase per hectare returns by US $15-35. Due to the limited capacity of the present canals, changing from a continuous flow to a demand system does not appear to be economically feasible. However, if present allocation can be supplemented by private wells operated on demand, higher economic returns and more flexibility would be possible.
5 Reuss, J. O.; Kemper, W. D. 1977. On farm water management as affected by size of holding and cropping systems. 13p.
Water management ; Cropping systems ; Food production ; Population ; Irrigated farming / Pakistan / Indus River
(Location: IWMI-HQ Call no: P 1664 Record No: H02481)
6 Reuss, J. O.. Field research on farm water management in Pakistan. In Indian Institute of Management, Irrigation Management: Background papers - Vol. 2. Bangalore, India: Indian Institute of Management. EIII:1-23.
(Location: IWMI-HQ Call no: 631.7.8 G000 IND Record No: H07217)
7 Skogerboe, G. V.; Kemper, W. D.; Reuss, J. O.. 1980. Development of improved water management practices in Pakistan. Water Supply & Management, 4:299-312.
(Location: IWMI-HQ Call no: P 2387 Record No: H011273)
8 Reuss, J. O.; Skogerboe, G. V.; Merrey, D. J. 1979. Watercourse improvement strategies for Pakistan. Water Supply and Management, 4:409-422.
(Location: IWMI HQ Call no: P 2421 Record No: H011412)
(1.17 MB)
After discussing the magnitude of watercourse losses in Pakistan, the first section of this paper discusses and compares the costs and potential benefits of three basic strategies for watercourse improvement. The second section discusses various possible institutional arrangements for water management programs. The final section presents a number of recommendations concerning watercourse improvement strategies and institutional development.
9 Reuss, J. O.; Skogerboe, G. V.; Merrey, D. J. 1979. Water management programs to improve agricultural productivity in Pakistan: an appraisal. Report prepared under support of USAID contract AID/ta-c-1411 for Symposium on Optimum Utilization of Water for Agricultural Productivity, WAPDA, Lahore, Pakistan, 1979. 28p. (Pakistan Report 42)
(Location: IWMI-HQ Call no: P 2617 Record No: H011880)
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