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Subsurface Drip Irrigation Can Reduce Pollution
Several researchers have indicated that precise subsurface drip (SSD) application of irrigation water can be effectively used to reduce pollution of the aquifer when irrigating with reclaimed...

Irrigation Lettuce with Buried Drip, Surface Drip, and Furrow Irrigation: Spatial Variability of Plants, Soil, and Water
Spatial variability of plant growth, soil, and water was investigated for a furrow, surface drip, and subsurface drip irrigation systems. Variability was analyzed by sampling plant weight,...

Irrigating Lettuce with Buried Drip, Surface Drip, and Furrow Irrigation Systems: Overall Performance
Groundwater nitrate contamination is a major concern in the Salinas Valley of California. The source of much of the nitrate appears to be vegetable production in the valley. A field-scale...

Overview of the Department of the Interior's National Irrigation Water Quality Program
The Department of the Interior National Irrigation Water Quality Program was started in 1985 in response to concerns about contamination of water, bottom sediment and biota in National...

Selenium in Soil, Water, Sediment, and Biota of the Lower Sun River Area, West-Central Montana
A U.S. Department of the Interior study started in 1990 examined the source, movement, fate, and possible biological effects of selenium associated with irrigation drainage from the Sun...

Distribution and Mobilization of Dissolved Selenium in Ground Water of the Irrigated Grand and Uncompahgre Valleys, Western Colorado
Distribution of dissolved selenium in ground water of the irrigated Grand and Uncompahgre Valleys is affected by the aqueous geochemical environment of the shallow ground-water system...

AGWATER?
The AGWATER computer program is an interactive learning, teaching, and pre-season evaluation tool regarding agricultural irrigation. It combines the concepts of irrigation scheduling,...

Furrow Irrigation Education
A furrow irrigation simulation computer model based on the volume-balance method is described. The model is used to develop information on furrow system performance that can be used in...

Optimal Commands in Border Irrigation Systems
Optimal command areas and level border irrigation design parameters are obtained for a given available seasonal water supply using a dynamic programming (DP) optimization approach. The...

IRRICAD ? Computerized Irrigation Design
IRRICAD is a software program that helps irrigation designers by using a computerized systems approach to design. The program features drawing CAD input, interpolation of elevation data,...

An Irrigation Allocation Planning Model
An irrigation allocation model using multiperiod linear programming was developed to recommend canal water allocation among different irrigated fields to maximize net annual benefits for...

A Flexible Expert System Based Typology of Irrigation System Types
This paper describes an approach developed to classify irrigation systems into categories. It discusses the general problem of developing a typology of irrigation systems and proposes...

Development of a Hydrological Database for PROSIM?A Water Rights-Based Operational Simulation Model of the Provo River
The development of a hydrological database for a computer model of the hydrology, water rights, and operations of the Provo and Weber rivers is described. The model uses all pertinent...

FLUME 3.0: A Computer Program for Designing Flumes and Weirs
Long-throated flumes and broad-crested weirs are becoming the preferred measuring devices for use in irrigation canals. A computer program for calibrating these flumes and weirs has been...

BASIN 2.0 for the Design of Level-Basin Irrigation Systems
The purpose of this paper is to present a computer program for the hydraulic design of level-basin irrigation systems. The first of three design modes provides design based on the advance...

CPIVOT v 2.0 Center Pivot Analysis and Design Software
A micro-computer based software package is presented which can be used for hydraulic design and/or analysis of center pivot irrigation systems. The software is written in C and requires...

AZSCHED?Software for Real-time Irrigation Scheduling
A user-friendly computer based scheduling program was developed to minimize the amount of data which needs to be input by the user by utilizing a network of twenty automated weather stations...

Flow Simulation for Surface Irrigation Design
Experience shows that even the most sophisticated and accurate computer models of the surface-irrigation process will not be widely used by design agencies unless they manifest a certain...

Software Engineering for Irrigation and Environmental Applications
Interactive, user-oriented software has been developed to enhance irrigation design, management and planning. Environmental applications were the central focus of several individual components...

Density Fluctuations and Use of the Krypton Hygrometer in Surface Flux Measurements
The magnitude of the of the Webb et al. (1980) density corrections on water vapor fluxes due to the flux of sensible heat is examined in terms of the Bowen ratio. The correction due to...

 

 

 

 

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