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376 - 400 of 1758 Items << < 11 12 13 14 15 16 17 18 19 20 > >>
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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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Seedlings of Acacia senegal were grown in a glass greenhouse to study the effect of nitrogen and irrigation regimes on dry matter
production and allocation to different plant organs, net photosynthesis per unit leaf area, and nitrogen content in...
1984-07-03 (iso8601)
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With rapid growth and limited water supplies, many water systems throughout the United States, in particular those in western states, are aware of the need for water conservation. Supplying secondary water is an approach that reduces demand on...
2008-06-01
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The use of pesticides is an integral part of today's agriculture. Pesticides contribute significantly to improved crop productivity and to public health. Some pesticides, even in extremely low concentrations, can pose a risk to human health and to...
1994-03-01
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Production of adequate supplies of food and fiber currently requires that pesticides be used to limit crop losses caused by insects, pathogens, weeds and other pests. Although pesticides are necessary in today' s agriculture, they can be a serious...
1990-06-24
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Summary and Conclusions: Sprinkler irrigation will continue to expand in Utah as well as in other irrigated areas of the world. This method of irrigation is suitable to all farm crops grown in the state and to most...
1954-01-01
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The increased use of domestic wastewater for irrigation purposes has stimulated a growing practice of sprinkler irrigating from oxidation ponds and other domestic wastewaters. Aerosols generated from these sprinkler...
1975-01-01
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