Journal of Food, Agriculture and Environment
Vol 1,
Issue 2,2003
Online ISSN: 1459-0263
Print ISSN: 1459-0255
|
|
|
|
Newsletter
Subscribe to our newsletter and stay up to date with the latest publishes
Wetting capacity distribution in aggregates from soils with a different management
Author(s):
A. Ellies 1*,
C. Ramirez 2, R. H. Mac Donald 1Recieved Date: 2002-12-28, Accepted Date: 2003-04-15
Abstract:The wetting capacity was inferred by the contact angle on a Andisol and a Ultisol from Southern Chile submitted to different managements . On microscope slides aggregates were spread and a drop of water was placed on the surface. The drop was observed with a magnifying glass with a horizontal vision field. Glass slides were buried for four years at different depths, during this period organic substances precipitated as thin films over the glasses. The results suggest that a higher organic carbon content reduces wetting capacity. Organic substances with a temporary permanency in the soil favour this resistance. The organic matter qualitative properties affect wetting capacity. Soils with a smaller wetting capacity show a higher proportion of aromatic and esters substances. Wetting resistance of topsoil aggregates diminishes from the walls to their interior. In the subsoil this tendency disappears with coarser aggregates. The wetting resistance increases to the interior as aggregates become smaller.
Keywords:Contact angle,
managements, organic componentsJournal: Journal of Food, Agriculture and Environment
Year: 2003
Volume: 1
Issue: 2
Category: Agriculture
Pages: 229-233
Full text for Subscribers
Information:
Note to users
The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.
Article purchasing
If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.
Purchase this Article: 20 Purchase PDF Order Reprints for 15
Share this article :