Results 261 to 270 of about 14,133 (315)
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Irrigated Pasture: Water Management under Center Pivot Irrigation (Site Specific)
2005 Tampa, FL July 17-20, 2005, 2005Pasture irrigation under center pivot machines is becoming popular in Brazil in the last 7 years, in order to raise cattle for the international meat (non-confined) demand. Field technicians are considering pasture irrigation management a technical challenger to overcoming in the next years, because under rotary pasture, parcels are simultaneously ...
null Alexandre Candido Xavier +1 more
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A Center Pivot Irrigation Simulator for Pesticide Applications
Transactions of the ASAE, 1982ABSTRACT DROP size distributions & application rates were measured for a center pivot irrigation (CPI) system. A simulator employing eight stationary nozzles in an in-line configuration was designed to duplicate the CPI system performance. Tests showed for drop size distribu-tions and application rates, the simulator values (weighted average) were ...
null F. J. Pickle, null J. L. Chesness
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Interaction of Center Pivot Irrigation and Electrical Transmission
Transactions of the ASAE, 1980ABSTRACT CROSSING of irrigated or potentially irrigable land by electrical transmission right-of-way (R-O-W) presents a situation where conflict in land use may arise. This paper quantifies some of the factors involved in this interaction. Theoretical R-O-Ws crossing a quarter-section of irrigated land at various orientations are studied.
null Robert J. Gustafson +3 more
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Friction Correction Factor For Center‐Pivot Irrigation Systems
Journal of Irrigation and Drainage Engineering, 1988A friction correction factor (Fcp) for use in the estimation of friction loss in a center-pivot irrigation system lateral is derived.
J. Mohan Reddy, Horacio Apolayo
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Nitrogen Fertilization on Center Pivot Sprinkler Irrigated Rice
Crop Management, 2011Rice (Oryza sativa, L) was grown in a field with well‐drained soils and earthquake‐associated sand blows. A test was conducted to determine the effects of nitrogen management on rice yield and milling with sprinkler irrigation. Two rice cultivars and one hybrid were grown for three years at Portageville, MO, under center pivot irrigation.
Matthew D. Rhine +3 more
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Demonstration of Intelligent Center Pivot Irrigation Technology
2014 ASABE Annual International Meeting, 2014Abstract. Center pivot irrigation systems are predominantly designed to apply a relatively uniform amount of water to fields that are often inherently variable due to factors such as different soil types, topography, or multiple crops. This field variability can result in significantly waste of water and energy, runoff, chemical leaching, and ...
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Electronic Percentage Timer for Center Pivot Irrigation Systems
Applied Engineering in Agriculture, 1989An electronic percentage timer was developed for center pivot irrigation systems. The timer provides greater timing accuracy than electro-mechanical timers presently used to vary the water and chemical application amounts to a given field.
null Steven J. Thomson +2 more
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California's Reluctant Acceptance of Center Pivot Irrigation
Yearbook of the Association of Pacific Coast Geographers, 1979CENTER PIVOT TECHNOLOGY is having a greater impact on irrigation farming in America t an a y development sin e the invention of the impulse sprinkler and the introduction of lightweight aluminum pipe. In only a few years, center pivots have appeared on the rural landscape of forty states and are now the single most important type of irrigation in nine ...
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Power Sources for Center Pivot Irrigation
SAE Technical Paper Series, 1977<div class="htmlview paragraph">The development of the center pivot irrigation system has allowed a level of process control not previously attainable in commercial agriculture. This form of irrigation now forms the dominant method for new lands going under irrigation.</div> <div class="htmlview paragraph">Consideration of alternative
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Center‐Pivot End Gun Irrigation Cost Analysis
Journal of Irrigation and Drainage Engineering, 1989The analysis quantified the energy required to deliver pressure head for the area irrigated by an end gun.
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