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Comparison of measured soil water co...

Harris, Samuel R.

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Comparison of measured soil water content and estimated evapotranspiration in scheduling orchard irrigations.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Comparison of measured soil water content and estimated evapotranspiration in scheduling orchard irrigations./
Author:	Harris, Samuel R.
Description:	87 p.
Notes:	Source: Masters Abstracts International, Volume: 44-01, page: 0224.
Contained By:	Masters Abstracts International44-01.
Subject:	Agriculture, Plant Culture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1427473
ISBN:	9780542184147

Comparison of measured soil water content and estimated evapotranspiration in scheduling orchard irrigations.
Harris, Samuel R.

Comparison of measured soil water content and estimated evapotranspiration in scheduling orchard irrigations. - 87 p.

Source: Masters Abstracts International, Volume: 44-01, page: 0224.

Thesis (M.S.)--Utah State University, 2005.

This study compares the usefulness of soil water measurement approaches using Watermark soil moisture sensors and the portable Hydrosense Soil Water Content Measurement System with estimates of crop evapotranspiration for planning orchard irrigations. Watermark soil moisture sensors and the Hydrosense were calibrated to measure changes in soil water content and used to measure orchard water use between irrigations. Measured orchard water use was compared to Hargreaves and FAO56 Penman-Montieth estimated crop evapotranspiration. Hargreaves and FAO56 Penman-Montieth estimated evapotranspiration produced similar results. Correlation between measured orchard water use and Hargreaves estimated orchard evapotranspiration ranged from r2 = 0.01, SE = 9.5 mm to r2 = 0.97, SE = 2.3 mm. Correlation between measured orchard water use and FAO56 Penman-Montieth estimated orchard evapotranspiration ranged from r2 = 0.01, SE = 8.6 mm to r2 = 0.94, SE = 3.3 mm. Growers can improve the accuracy of irrigation scheduling by using measurements of soil water content and estimates of crop evapotranspiration.

ISBN: 9780542184147Subjects--Topical Terms:

1018669
Agriculture, Plant Culture.

Comparison of measured soil water content and estimated evapotranspiration in scheduling orchard irrigations.
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100 1 $a Harris, Samuel R. $3 1912074
245 1 0 $a Comparison of measured soil water content and estimated evapotranspiration in scheduling orchard irrigations.
300 $a 87 p.
500 $a Source: Masters Abstracts International, Volume: 44-01, page: 0224.
500 $a Major Professor: Schuyler D. Seeley.
502 $a Thesis (M.S.)--Utah State University, 2005.
520 $a This study compares the usefulness of soil water measurement approaches using Watermark soil moisture sensors and the portable Hydrosense Soil Water Content Measurement System with estimates of crop evapotranspiration for planning orchard irrigations. Watermark soil moisture sensors and the Hydrosense were calibrated to measure changes in soil water content and used to measure orchard water use between irrigations. Measured orchard water use was compared to Hargreaves and FAO56 Penman-Montieth estimated crop evapotranspiration. Hargreaves and FAO56 Penman-Montieth estimated evapotranspiration produced similar results. Correlation between measured orchard water use and Hargreaves estimated orchard evapotranspiration ranged from r2 = 0.01, SE = 9.5 mm to r2 = 0.97, SE = 2.3 mm. Correlation between measured orchard water use and FAO56 Penman-Montieth estimated orchard evapotranspiration ranged from r2 = 0.01, SE = 8.6 mm to r2 = 0.94, SE = 3.3 mm. Growers can improve the accuracy of irrigation scheduling by using measurements of soil water content and estimates of crop evapotranspiration.
590 $a School code: 0241.
650 4 $a Agriculture, Plant Culture. $3 1018669
650 4 $a Agriculture, Agronomy. $3 1018679
650 4 $a Agriculture, Soil Science. $3 1017824
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710 2 0 $a Utah State University. $3 960049
773 0 $t Masters Abstracts International $g 44-01.
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792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1427473