03954nas|a2200409 i 4500 20260818085517.0 121095s1993 th uu m rtt 00| a1eng d .b10177565 AIT RSPR no. IR-92-01 Mansoor, Allah Ditta Crop based water demand and farmers' perception of crop irrigation in Punjab, Pakistan Bangkok : Asian Institute of Technology, 1993 91 leaves Research studies project report ; no. IR-92-01 A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1993 Pakistan experienced an unprecedented development of large irrigation resource system in the twentieth century and ground water resource of irrigation in the last 28 years by the Public and Private sector. Tubewell (T/well) development raises concerns over the environmental sustainability of the present agricultural production base. This study introduced the concept of crop based irrigation water demand and water use under farmers perceptions at production of crop marginal yield value. The interactions between the marginal yield value, the total water demand, the farmers perceptions for water application through canal supplies, groundwater extraction by T/well, and natural blessing of rainfall as a part of irrigation demand. Also the relationship between groundwater demand, conveyance losses, water quality, alternative water supplies and marginal water demand were considered. Data collected from 4L distributary sample of T/well owners and non-owners allowed comparison between the observed crop water demand and current withdrawal rates and analysis of factors constraining groundwater use. Availability of water at farm gate and quality of water and marginal water cost influenced cropping patterns. A Linear and Quadratic Regression Model were used to determine the variance in irrigation supplies and to determine the correlation between water applied to 34 sample wheat fields during Rabi (November-April), 1991-92 and marginal yield response to know the best yield factors between overall wheat field samples and sampled irrigated by the T/well extractions at lowest marginal costs and also with LASER levelled fields. Economical range for marginal fit quality groundwater irrigation was derived comparing LASER Land levelled wheat fields irrigation with seasonal output per hectare production value and focussed on recommendations for development technology in irrigation management. Irrigation Pakistan Punjab Management Loof, Rainer, Chairperson Kono, Yasuyuki, Examination committee Murali, N.S., Examination committee Government of Japan, Scholarship donor Asian Institute of Technology. Research studies project report ; no. IR-92-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B00071 .b10177565 mnait y 240411 2 951012 m a y 0 mnait mnait mnarc 20 40 Barcode : 30050003111829 CREATED : 1995-10-13 RECORD # : i10211585 LPATRON : 1015151 LCHKIN : 2018-07-07 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 1 Barcode : 30050003111811 CREATED : 1995-10-13 RECORD # : i10211597 LPATRON : 1029187 LCHKIN : 2018-09-13 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 0 Barcode : 30050160106992 CREATED : 2016-04-20 RECORD # : i12941529 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 24646 24646 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no. IR-92-01 30050003111829 2026-08-18 08:55:17 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no. IR-92-01 30050003111811 2026-08-18 08:55:17 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no. IR-92-01 30050160106992 2026-08-18 08:55:17 1 2026-08-18 40