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201 - 225 of 1758 Items << < 4 5 6 7 8 9 10 11 12 13 > >>
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The title of this map series is Texas Legislative and Irrigation Districts of the Rio Grande River Basin. The series consists of nine (9) maps showing the boundaries of legislative districts and 32 water districts that deliver irrigation water....
2011-07-05
2011-07-05 2008-07-01 |
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Agriculture is a major income generating sector of the Texas economy. Irrigated agriculture is an important part of Texas agriculture and an "adequate" water supply is important in maintaining a viable agriculture. Irrigation water is important...
2011-07-01
2011-07-01 1975-04-01 |
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A smart controller testing facility was established by the Irrigation Technology Center at Texas
A&M University in College Station in 2008. A two-year testing program was initiated in order to
evaluate smart controller testing methodology needed...
2011-01-04
2011-01-04 2010-04-01 |
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2010-03-01
2010-03-01 2009-06-01 |
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2009-01-12
2009-01-12 2008-10-01 |
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The scientific design and management of a modern irrigation system requires that the designer or manager have knowledge of site and plant criteria such as infiltration, drainage, soil fertility, plant water needs, and plant production under...
2007-12-05
2007-12-05 1980-12-01 |
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Crop production on the Texas High Plains is constrained by limited and erratic rainfall, hence irrigation is important. Presently, 6 million acres, or 50% of regional cropland, are irrigated annually. Irrigation water is drawn from the Ogallala...
2007-11-30
2007-11-30 1983-12-01 |
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A mathematical discourse is provided, documenting the economic and financial methods used in RGIDECON, an Excel spreadsheet capital investment evaluation model focused on irrigation district-level pumping and delivery systems. These methods and...
2007-11-28
2007-11-28 2002-10-01 |
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Initial construction costs and net annual changes in operating and maintenance expenses
are identified for a single-component capital renovation project proposed by Hidalgo County
Irrigation District No. 2, (a.k.a. San Juan) to the North American...
2007-11-19
2007-11-19 2003-05-01 |
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Study of underground water in the Las Vegas Valley and the drainage of irrigated land in the Moapa Valley. F. L. Bixby was Senior Irrigation Engineer of the Irrigation Division of the Government Bureau of Public Roads.
1927-01-01
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One deciduous cultivar of Rhododendron L., Gibraltar (AZ), and two evergreen
cultivars, P.J.M. Compact (PJM) and English Roseum (ER), were grown in containers
for 1 year to determine the effects of irrigation frequency during container production...
2014-07 (iso8601)
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Thirty-meter resolution Landsat data were used to evaluate the effects of
irrigation management in the Wood River Valley, Upper Klamath Basin, Oregon. In an
effort to reduce water use and leave more of the water resource in-stream, 4,674 ha of...
2013-08-02 (iso8601)
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This publication provides a framework, general recommendations, and rationales to aid potato growers interested in maximizing their land use and crop yield through drip irrigation. Discusses bed conformation, pumps and filters, system maintenance,...
2013-01 (iso8601)
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Finite, uncertain, and increasingly expensive
energy resources require a better understanding of energy
utilization in all sectors of the national economy including agriculture. A significant portion of energy used
in agriculture is required for...
1983-05-16 (iso8601)
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Discusses the advantages of drip irrigation and how it can help growers use water efficiently. Covers basic concepts related to components and design as well as management considerations such as placement of the tape, timing and rates,...
2013-03 (iso8601)
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1974-07-17 (iso8601)
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Policy analysts designing programs to improve the
efficiency and expand the use of water in the irrigation of
farm lands often enlist benefit-cost analysis as a means of
assessing impacts and feasibility. While on-site comparisons
of costs and...
1985-12-20 (iso8601)
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Provides consumptive use and net irrigation requirements for economically important crops in 27 climatic regions in Oregon. Computations are based on the modified Blaney-Criddle calculation method and climatic database information. Contains tables...
1992-06 (iso8601)
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The overall objective of the study is to measure changes in agricultural production
and water use patterns under various water supply and allocation mechanisms. The
methodology nests an economic model of on-farm decisions in a basin-wide...
1999-06-04 (iso8601)
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