Sprinkler irrigation drop energy and soil conditioner evaluation in some soil units of Alentejo [Portugal]

A study was conduced to test the combined effect of polyacrylamide and drop energy of sprinkler irrigation water on twelve soil units of Alentejo. Polyacrylamide applied with the first irrigation at a concentration of 1 kg/ha effectively increased infiltration and reduced runoff and erosion on all s...

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Bibliographic Details
Published inRevista de ciências agrárias Vol. 25; no. 3-4
Main Authors Santos, F.L, Reis, J.L, Martins, O.C, Castanheira, N.L, Serralheiro, R.P
Format Journal Article
LanguagePortuguese
Published 01.07.2002
Subjects
ACONDICIONADORES DEL SUELO
CONDITIONNEUR DE SOL
CONTROL DE LA EROSIÓN
EROSION CONTROL
INFILTRACIÓN
INFILTRATION
IRRIGATION PAR ASPERSION
LUTTE ANTIÉROSION
POLIACRILÁMIDA
POLYACRYLAMIDE
PORTUGAL
RIEGO POR ASPERSIÓN
SOIL CONDITIONERS
SPRINKLER IRRIGATION
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Summary:A study was conduced to test the combined effect of polyacrylamide and drop energy of sprinkler irrigation water on twelve soil units of Alentejo. Polyacrylamide applied with the first irrigation at a concentration of 1 kg/ha effectively increased infiltration and reduced runoff and erosion on all soils, except on Px and Ps soil units. Slope increased runoff and erosion on all soils, with PAM application softening the percent increase observed on the check treatments. Conservative tillage practices are recommended with PAM use, especially for the soils Px, Ps and A, of very low or null responses to PAM, but well represented in terms of total available area
Bibliography:P36
F04
2004000086
ISSN:0871-018X