Effect of polymer on soil water holding capacity and plant water use efficiency

Sivapragasam Sivapalan

    Research output: Book chapter/Published conference paperConference paperpeer-review

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    Abstract

    The amount of water retained by a sandy soil against a 0.01 MPa pressure increased by 23 and 95% by adding small amounts (0.03 and 0.07% by weight, respectively) of a polymer to the soil. However, the polymer did not significantly increase the quantity of water released from the soil by increasing the pressure from 0.01 to 1.5 MPa. The additional amount of water retained by the soil due to the presence of polymer was completely available to soybean plants grown in pots. Consequently there were substantial increases in water use efficiency of soybean plants grown in soils treated with 0.03 (12) and 0.07% (19) polymers.
    Original languageEnglish
    Title of host publication10th Australian Agronomy Conference
    EditorsNeville Mendham
    Place of PublicationSandy Bay, Australia
    PublisherConference Design Pty Ltd
    Pages1-4
    Number of pages4
    Publication statusPublished - 2001
    Event10th Australian Agronomy Conference - Hobart, Australia, Australia
    Duration: 29 Jan 200101 Feb 2001

    Conference

    Conference10th Australian Agronomy Conference
    Country/TerritoryAustralia
    Period29/01/0101/02/01

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