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Near Real Time Irrigation Scheduling Using Heat Unit Based Crop Coefficients

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TLDR
An interactive computer program (SCHEDPEN) which utilizes growing-degree-day based crop coefficients for irrigation scheduling was developed and tested on cotton during 1988 and 1989 at two locations in Arizona as discussed by the authors.
Abstract
An interactive computer program (SCHEDPEN) which utilizes growing-degree-day based crop coefficients for irrigation scheduling was developed and tested on cotton during 1988 and 1989 at two locations in Arizona. The program can directly accept weather data files from Arizona's automated agricultural weather station network (AZMET) via phone access. At both locations the program was compared to two other methods of irrigation scheduling and while yield and water use were not significantly different among the three methods, some algorithmic errors were found in SCHEDPEN which have been corrected. The program continues to be developed for additional crops and incorporation of additional management information.

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Dissertation

Short term planning and operation of irrigation systems

Aftab H Azhar
TL;DR: In this article, a research project focused on irrigation scheduling techniques, with the aim of improving the efficiency of water use, thus leading to conservation of water resources, in order to meet the increased water demands.
Journal ArticleDOI

Transfer of irrigation scheduling technology in Mexico

TL;DR: In this paper, the authors used agrometeorological data from few and widely-spaced weather stations to determine frequency and amount of water applied, and the algorithms employed usually did not consider the effects of spatial climate variability and plant physiology.

Irrigation and water resources in the 1990's

TL;DR: The 1992 National Conference on Irrigation and Water Resources in the 1990's as discussed by the authors presented proceedings from the 1992 national conference held on October 5-7, 1992 in Phoenix, Arizona.
Journal Article

Basal Crop Coefficients for Vegetables in Central Arizona

TL;DR: The main thrust of this segment of the project is to develop water use data on vegetables grown in both regions of the world and to develop crop coefficient data to be used in AZSCHED, a computerized irrigation scheduling program developed at the University of Arizona.

The Use of AZSCHED to Schedule Irrigations on Wheat

TL;DR: Clark et al. as mentioned in this paper used infrared thermometry to predict water use and plant stress in a wheat field and showed that increased inputs of higher seeding rate and higher nitrogen rate also increased the water use efficiency.
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