PERANAN BAHAN ORGANIK DALAM PEMBEBASAN P-TERIKAT PADA TANAH ANDISOL

Penulis

  • Yulnafatmawita Yulnafatmawita Jurusan Tanah Fakultas pertanian Universitas Andalas Padang
  • Lusi Maira
  • Junaidi Junaidi
  • Yusmini Yusmini
  • Nurhajati Hakim

DOI:

https://doi.org/10.25077/js.2.2.%25p.2005

Abstrak

A research about organic matter role on P desorption in Andisol was conducted in soil laboratory of Agricultural Faculty, Andalas University Limau Manis Padang. The objective of this research was to find out the ability of organic matter to change retained- or fixed-P into available-P in Andisols. This research was designed as completely randomized design (CRD) with 5 levels of chicken manure consisting of 2, 4, 6, 8, and 10 ton/ha by 3 replications. Based on laboratory analysis, the soil (Andisols) had pH 5.65, OC 2.33%, N-total 0.26%, available-P 56.94 ppm, and potential-P 60.38 mg/100 g soil. While chicken manure had OC 21.45%, total-N 5.60%, total-P 33.19 mg/100g and C/N ratio 3.83. The results showed that desorpted-P increased by increasing amount of chicken manure applied. Key words: fixed-P, available-P, desorpted-P

Referensi

Ahmad, F. 1988. Retensi fosfat tanah-tanah debu vulkanis gunung Sago. Lembaga Penelitian Universitas Andalas Padang.

Egawa, T. 1977. Properties of soil derived from volcanic ash. Reprinted from pages 10-63 Soil Derived from Volcanic Ash japan. Y. Ishizuka dan C.A. Black (Editor). Centro Internationale de mejoramiente de maiz Trigo, Mexico City.

Husin, E.F. 1986. Pengaruh pupuk kandang dan fosfor terhadap ketersediaan P, pembentukan nodula, dan hasil kedelai (Glycine max L.) pada tanah Podzolik. Thesis Pasca Sarjana Universitas Padjadjaran Bandung.

Kononova, M. M. 1966. Soil organic matter : its nature, its role in soil formation and in soil fertility. 2nd Edition, Pergamon Press, Oxford, 54.

Mohr, E.C.J., F.A. van Baren, and J. van Schullenborgh. 1972. Andosols. Reprinted from pages 397-418 of Tropical Soil. A Comprehensif Study of their Genesis, 3rd Edition. Mounton-Ichtiar Baru-van Hoeve. The Netherlands.

Schnitzer, M. 1986. Binding of humic substances by soil mineral colloids. In Interactions of Soil Minerals with Natural Organics and Microbes. SSSA Special Publications Number 17. SSSA Inc., Madison, 77-102.

Unduhan

Diterbitkan

2005-07-02

Terbitan

Vol 2 No 2 (2005): Jurnal SOLUM

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