NDSU North Dakota State University
Fargo, N.D.
library-image

NDSU Institutional Repository

Water balance irrigation scheduling based on Jensen-Haise equation : software for Apple II, II+, and IIE computers

Show full item record

Click to view higher resolution file
s99e8xno100.pdf
Title: Water balance irrigation scheduling based on Jensen-Haise equation : software for Apple II, II+, and IIE computers
Author: Stegman, E.C.; Coe, D.A.
Description: Developments in applied methods for estimating crop water use (evapotranspiration) have made it possible to estimate root zone soil moisture deficits in irrigated fields with reasonable accuracy. A zero soil moisture deficit (SMD=O) implies that the root zone storage capacity (influenced by soil textures and rooting depths) is filled to "field capacity." Day-to-day crop water use produces a water deficit, whereas irrigations and rainfalls (when they occur) reduce the deficit. Irrigation scheduling implies that at some level of water deficit an irrigation system must be started and run until the prevailing deficit is reduced to lower levels if near maximum yield is the production goal. The following material includes an algorithm for irrigation scheduling, source code with documentation (written in Applesoft Basic), and a users guide.
Date: 1984
Subject: Computers
Irrigation
Permalink: http://hdl.handle.net/10365/3573

This item appears in the following Collection(s)

Show full item record

Search DSpace



Advanced Search

Browse

Your Account