Cation Exchange capacity and pH of Ultisol after Zeolite and Lime Application

Bernas, Siti Masreah and Yudono, Bambang and Rismauli, Rismauli (2003) Cation Exchange capacity and pH of Ultisol after Zeolite and Lime Application. In: Proceeding of an International seminar on organic farming and sustainable agriculture in the tropic and subtropic., 8-9 Oktober, Palembang.

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    Ultisolsare chracterized by low pH, low cation exchange capacity, high of zeropoint charge and tend to have positive charge, high phosphorus fixation and low nutrient content. In order to increase soil pH and cation exchnage capacity, zeolite and lime were added to Ultisol. The application of lime were 0; 0.8 and 2.3 gkg-1 of soil and zeolite were 1; 3; 6 and 7.5 gkg-1 0f soil. The treatments were replicated 3 times and Randomized Block Design was used in this experiment. Results showed that zeolite and lime increased soil pH significantly and there was an interactive reaction between them. The application of zeolite (6gkg-1) and no zeolite have increased about one unit pH, which is good for Ultisol. It means that zeolite does not play an important role in increasing soil pH. However, zeolite increased C.E.C.significantly and the best result is showed by by application of zeolite (6gk-1), where C.E.C. is 21.5 me/100g. Then C.E.C. of soil decreased on higher zeolite dosange (7,5 gkg-1). This may caused by there is not enough base in soil to displace ion H on crystal site of zeolite. Thus addition of lime (4 ton/ha) and zeolite (1 ton/ha) are suggested to increase soil pH and Cation exchange capacity of Ultisol.

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: Zeolite sebagai pembenah sifat kimia tanah
    Uncontrolled Keywords: Ultisolsare, low pH, exchange capacity, nutrient, zeolite
    Subjects: S Agriculture > S Agriculture (General)
    Divisions: Faculty of Agriculture > Department of Soil Science and Land Resources
    Depositing User: Dr. Siti Masreah Bernas
    Date Deposited: 16 Mar 2012 14:13
    Last Modified: 16 Mar 2012 14:13

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