Cation Exchange capacity and pH of Ultisol after Zeolite and Lime Application
| Main Authors: | Bernas, Siti Masreah, Yudono, Bambang, Rismauli, Rismauli |
|---|---|
| Format: | Proceeding PeerReviewed application/pdf |
| Terbitan: |
, 2003
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/633/2/IMG_0003_CEC.pdf http://eprints.unsri.ac.id http://eprints.unsri.ac.id/633/ |
Daftar Isi:
- 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.