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Physical Sciences and Mathematics Commons™
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- Irrigation (4)
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- Water resources (4)
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- Air temperature;; data collection;; field data;; highway;; hydrographs;; hyetographs;; rainfall;; retention;; soil moisture;; storms;; runoff;; watershed;; wind (1)
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- Algebraic equations;; highway;; hydrologic soil groups;; hydrology;; infiltration;; infiltration capacity;; infiltration rate;; laboratory studies;; mathematical models;; parametric models;; plant cover;; rain infiltration;; runoff curve number;; sideslopes;; soils;; soil classifications;; soil moisture;; standard curve;; turf;; urban (1)
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Articles 541 - 546 of 546
Full-Text Articles in Physical Sciences and Mathematics
Irrigation And Drainage Problems In Uruguay, Jerald Emmet Christiansen
Irrigation And Drainage Problems In Uruguay, Jerald Emmet Christiansen
Reports
Synopsis: Uruguay irrigates about 65,000 acres, mostly rice (74%) and sugar cane (15%). Summer rainfall averages about 3.5 in. per month, but frequent droughts seriously affect both crops and livestock. Irrigation can be increased by storage in small reservoirs on tributary streams by means of low earth dams. Some areas will require flood control and draiange before intensive agriculture can be practiced.
Report Of Engineering Research With Recommendations For Strengthening The Program, Vaughn E. Hansen
Report Of Engineering Research With Recommendations For Strengthening The Program, Vaughn E. Hansen
Reports
Progress of Engineering Research: The growth initiated with the reorganization of the Engineering Experiment Station in 1957-58 has been stready and consistant through 1958-59. Every sign points to continued expansion through the coming year. This growth is shown in Table 1. The number of active projects this year has increased to nineteen, the funds allocated for Engineering research were $53,861 plus $17,826 to contract research, exclusive of approximately $75,000 in the Agricultural Experiment Station. The number of staff members engaged in research is now twelve. Contract research money has been obtained to finance four projects which were financed previously with …
The Importance Of Hydraulics Of Surface Irrigation, Vaughn E. Hansen
The Importance Of Hydraulics Of Surface Irrigation, Vaughn E. Hansen
Reports
Summary: Surface irrigation is a complex hydraulic phenomenon. The hydraulic elements involved in surface irrigation are listed and discussed. Relating these hydraulic elements is the key to efficient irrigation, good design, and permanent agriculture.
Measurement Of Irrigation Water, Eldon M. Stock
Measurement Of Irrigation Water, Eldon M. Stock
Reports
Foreword: Although irrigation has been practiced in Utah for more than one hundred years, irrigation water still is being distributed to farmers with little or not thought about its measurement. A farmer would not think of buying or selling other farm commodities, such as hay, grain, beef cattle, or dairy products, without weighing or accurately measuring them, but at the same time he is often content to accept and pay for the irrigation water received with little or no knowledge as to the actual amount received, or whether or not he is receiving the amount he is entitled to. Measurement …
Evaluation Of Sprinkler Irrigation Systems In Northern Utah, Jay M. Bagley, Wayne D. Criddle
Evaluation Of Sprinkler Irrigation Systems In Northern Utah, Jay M. Bagley, Wayne D. Criddle
Reports
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 soils. It is particularly adapted to steep foothill areas where the water supply can be obtained at higher elevation and pumping is not necessary to develop pressure for the sprinkler systems. Also, much of the irrigated land of the state, particularly along the Wasatch front, is owned and operated by "part-time" farmers. Having the water under complete control and the irrigation schedule …
Relative Productive Value Of Land, Karl Harris, Vaughn E. Hansen
Relative Productive Value Of Land, Karl Harris, Vaughn E. Hansen
Reports
Location, markets, hard surface roads and other transportation facilities, churches, taxes, schools, and utilities are major factors in the monetary value of land, yet these things do not contribute to the land’s productivity. In this bulletin the only factor considered in determining the agricultural value of land is its productive capacity.
The three major factors in the productive value of land are water, climate, and soil.
These three factors are the principal ones in crop production. If any one of them is unfavorable to plant growth, it can inhibit or even prevent plant growth regardless of how favorable the other …