DSSC - Open Public Access Catalogue Search for 'su:"Irrigation"'

User-friendly irrigation designs /

]]> By Sengupta, Nirmal,.
New Delhi ; | Newbury Park : Sage Publications, 1993 .
147 p. : 23 cm..
8170363179 (India : hbk.)

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Agricultural irrigation research progress

By Alonso,Daniel.
New York : Nova Science publishers, Inc. 2008 .
xi, 194, p ; 101604565799

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Irrigation and water resources engineering /

By Asawa, G.L. .
New Delhi : New Age International (P) Limited, Publishers, 2005 .
vii, 608p. : 81-224-1673

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Irrigation practices /

]]> By Widtsoe John A..
India Agrobios 2006 .
xxvi, 496p. : 8177541102

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Irrigation system design : an engineering approach /

]]> By Cuenca, Richard H.,.
Englewood Cliffs, N.J. : Prentice Hall, 1989 .
viii, 552 p. : 25 cm..
0135061636

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Water resource management

]]> By A.Vaidanathan.
New Delhi Oxford university press 1999 .
261 p. 0195658841

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Concerns and advances of agricultural water management /

USA : Callisto Reference, 2015 .
vii, 202 pages : , Includes references and list of contributors. 24 cm..
978632391278

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Agricultural water management : insights and challenges /

]]> USA : Callisto Reference, 2015 .
vii, 262 pages : , Includes references and list of contributors. 24 cm..
9781632390592

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Technical evaluation of communal irrigation systems in Luzon/

By Luyun, A., Jr. .
.
pp. 1-9 , As of December 2014, about 1.71 M ha or 56.6% of the total irrigable area in the Philippines have been developed for irrigation. Of these, 595,653 ha or 34.9% are under communal irrigation systems (CIS) representing around 20% of the 3.1 M ha potential irrigable areas. This illustrates an opportunity and the need to develop CIS for sustainable agriculture and food security. Despite increasing investments, the firmed-up service area (FUSA) of CIS at the national level only increased by about 6% over the last 10 years. Likewise, despite massive rehabilitation efforts and funds for construction of new irrigation facilities, the increase in irrigation area is minimal. The national average cropping intensity of CIS is only about 130% due to over assessment at the design stage of the service area relative to what is actually irrigated and to available water supply. This paper presents the common technical problems associated with the construction and O & M of CIS based on a study of 66 CIS in 11 provinces in Luzon. These CIS collectively cover a FUSA of about 332,769 ha, representing 58% of the total CIS in the Philippines as of 2013. The specific technical concerns examined include the sources of water, sedimentation, and design considerations from headworks to the distribution systems of CIS. 25cm..

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Determining the effect of climate change on seasonal crop water requirements of irrigated lowland rice (Oryza sativa) under different climatic environments /

By Fernandez, Cyra Gail P. .
.
pages 19-30 , Changes in temperature and rainfall pattern can lead to negative impacts on crop production. Limited water resources for agricultural production can also lead to a considerable yield reduction. In this study, climate productions at different greenhouse gas emission scenarios were used in determining the effect of climate change on seasonal crop water requirement (CWR) and irrigation requirement (IR) of lowland rice at different climatic environments. Climate projections from year 2020 to 2059 were generated using MarkSim. Crop evapotranspiration and irrigation requirements of lowland rice were simulated using FAO CROPWAT. Analysis of projected maximum and minimum temperatures and rainfall showed increasing trend through time. Seasonal CWR and IR showed highest projected change at 2050. Highest projected change in CWR during wet and dry seasons were 4.01% and 3.84% in Muñoz, Nueva Ecija, 3.30% and 3.54% in Los Baños, Laguna and 4.12% and 4.34% in Cabagan, Isabela, respectively. Highest projected change in IR during wet and dry seasons were 10.16% and 1.38% in Muñoz, 22.81% and 4.7% in Los Baños and 5.07% and 7.44% in Cabagan, respectively. The results showed that the irrigation requirements must be considered in improving the capacity of irrigation systems to satisfy the increasing water demand of rice brought about by climate change. 23cm. .

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