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276 - 300 of 1758 Items << < 7 8 9 10 11 12 13 14 15 16 > >>
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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...
2009-01-09
2009-01-09 2003-07-01 |
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There are about 15 million acres of cropland in the U.S. that are irrigated from aquifers which are incurring declining water levels (sloggett). This is primarily in the Great Plains Region where irrigation water is pumped from the Ogallala...
2007-11-30
2007-11-30 1984-06-10 |
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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 Brownsville
Irrigation District to the North American Development Bank (NADB) and...
2007-11-20
2007-11-20 2003-10-01 |
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Initial construction costs and net annual changes in operating and maintenance expenses
are identified for the capital renovation project proposed by the Cameron County Irrigation
District No. 2 (a.k.a. San Benito) to the North American...
2007-11-19
2007-11-19 2024-04-19 |
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Native shrublands and their associated grasses and forbs have been disappearing from the
Great Basin as a result of grazing practices, exotic weed invasions, altered fire regimes, climate change
and other human impacts. Native forb seed is needed...
2015-01 (iso8601)
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1952-06-05 (iso8601)
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The effects of irrigation frequencies and rates and time of
nitrogen fertilizer application on the yields, grades and N status of
Russet Burbank potatoes were determined on a sandy soil near
Hermiston, Oregon.
Increasing the frequency of...
1972-05-08 (iso8601)
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This publication provides a framework, general recommendations, and rationales to aid hybrid poplar growers interested in maximizing their land use and wood production through drip irrigation.
2013-01 (iso8601)
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The effects of deficit irrigations and nitrogen rates on the yield and size distribution of 'Detroit Dark Red' table beets were investigated during 1985 and 1986. Beets were grown on a Chehalis silty clay loam (fine-silty, mixed , mesic Cumulic...
1987-03-16 (iso8601)
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Recent advances in computer technology have made possible the
development of expert systems. Expert systems are computer programs that
perform at the level of a human expert. Expert systems can help integrate and
apply diverse sources of...
1992-10-23 (iso8601)
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In this work, we first introduce a novel approach to the long term irrigation scheduling
using Genetic Algorithms (GAs). We explore the effectiveness of GAs in the context of
optimizing nonlinear crop models and describe application requirements...
1997-04-10 (iso8601)
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Effects of amount of applied water and frequency of irrigation
on head rot and yield of three broccoli cultivars were evaluated in
1987 and 1988. Two irrigation frequencies were established with a
line-source sprinkler system for 5.5 weeks during...
1990-10-15 (iso8601)
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During 2 seasons effects of high and low irrigation (water applied
at -0.6 and -2.5 bars soil water potential, respectively) and
density were evaluated on yield parameters and flower/pod development
at mainstem nodes 2 and 6 (terminal) of 'Oregon...
1981-08-28 (iso8601)
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Soil moisture in a crop's root zone must be regularly
monitored to accurately predict crop water requirements.
Most irrigation scheduling services currently
use the neutron probe to monitor soil moisture. Unfortunately,
there is a degree of...
1984-05-30 (iso8601)
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This publication focuses on using water analyses to choose appropriate water treatment
and water management practices for irrigated agriculture. It will help determine:
• What tests are needed to characterize water quality
• How to collect water...
2007-08 (iso8601)
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In the late 1980s, the U.S. Pacific Northwest potato industry faced a crisis. Potato tuber quality was inadequate to meet the needs of potato processing companies due to a condition called “sugar ends” or “dark ends” in fried tuber
slices. This...
2006-10 (iso8601)
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When water is plentiful, growers usually schedule irrigation practices around
other farming activities. For example, most growers change furrow irrigation
sets at 12- or 24-hour intervals because this timing is convenient and
uses labor...
2001-07 (iso8601)
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1951-05-10 (iso8601)
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Proper irrigation, despite being one of the most important factors in maintaining a healthy lawn, is the most often overlooked variable in lawn care. This publication describes common turfgrass species, soil water holding capacity, irrigation...
2010-10 (iso8601)
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More than 4.5 million acres in the Pacific
Northwest are irrigated with electric-powered
sprinkler systems. Center pivots are used on about
1.25 million acres. Irrigation runoff can be a problem
on many of these sprinkler-irrigated fields.
1986-01 (iso8601)
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