|
|
Malaysian Agriculture Repository >
Institute >
Publications >
Please use this identifier to cite or link to this item:
http://agris.upm.edu.my:8080/dspace/handle/0/10036
|
| Title: | Boron released from Kapar coal fly ash and its uptake by Bayam (Amaranthus viridis) |
| Authors: | Azmi Ejom
Che Fauziah Ishak |
| Issue Date: | 1996 |
| Publisher: | The Malaysian Society of Soil Science |
| Citation: | Proceedings of the Soil Science Conference of Malaysia 1995: Kedah (Malaysia), 17-19 Apr 1995, p. 105-109 |
| Abstract: | A greenhouse experiment was conducted whereby two soils of different texture (Tebuk sandy clay and sandy mine tailings) were treated with different rates of fly ash (0, 10,20, 40, 80 and 160 t/ha) and the uptake of boron from this ash by bayam was then determined after 6 weeks of growth. The experimental set up chosen for this study was a factorial 2 (different soil texture) x 6 rates of fly ash and 4 replicates. Tissue boron uptake and plant dry matter were influenced by fly ash rate and soil texture. The best growth of bayam was at 40 t/ha for the Tebuk soil series and 20 t/ha for the sandy mine tailings. For the Tebuk soil series,slight boron toxicity symptom was observed at 80 t/ha and the symptom was obvious for the 160 t/ha treatment. On the other hand, boron toxicity sympton for the sandy mine tailings was obvious even at 40 t/ha. The general trend for the dry matter yield was an increase till an optimum growth and a decrease when boron toxicity symptom was visible. However, the Tebuk series exhibited an increase in the dry matter yield at the highest ash treatment, that is 160 t/ha. This was substantiated by the observation that only bayam plants for this treatment exhibited the sprouting of younger leaflets at the matured leaf nodes.
Satu kajian berpasu dirumah kaca telah dijalankan di mana dua jenis tanah berlainan tekstur (Tebuk pasir berlempung dan tanaha pasir lombong) telah diberi rawatan sisa pembakaran orang bat, ia itu, "coal fly ash", pada beberapa kadar (0, 10, 20, 40, 80 dan 160 t/ha) dan pengambilan boron oleh bayam ditentukan enam minggu selepas penanaman. Rekabentuk faktorial telah dipilih untuk kajian ini dengan 2 faktor (tanah berlainan teksur) x 6 rawatan (kadar "fly ash") dan 4 replikasi. Pengambilan B dan berat kering bayam dipengaruhi oleh kadar rawatan dan juga jenis tekstur tanah. Pertumbuhan terbaik untuk tanah Siri Tebuk ia lah 40 t/ha dan untuk tanah pasir lombong ialah 20 t/ha. Untuk tanah Siri Tebuk, kesan keracunan B dapat dilihat pada kadar 80 t/ha dan lebih jelas lagi pada kadar 160 t/ha, sementara pada tanah pasir lombong, kesan keracunan adalah jelas pada kadar 40 t/ha. Berat kering bayam meningkat dengan meningkatnya kadar "fly ash" tetapi sebaliknya menurun apabila kesan keracunan boron kelihatan. Namun demikian, untuk tanah Siri Tebuk, pada kadar rawatan yang tertinggi (160 t/ha), berat kering bayam meningkat semula, dan dari pemerhatian, adalah didapati pada kadar ini percambahan anak tunas berlaku pada tangkai-tangkai daun. |
| License: | http://www.oceandocs.org/license |
| URI: | http://agris.upm.edu.my:8080/dspace/handle/0/10036 |
| ISBN: | 967-9945-17-0 |
| Appears in Collections: | Publications
|
Files in This Item:
There are no files associated with this item.
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|
