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Title: | Perubahan Fraksi Fosfor Cepat Tersedia pada Tanah Tergenang yang Diameliorasi Bahan Organik |
Authors: | Anwar, Syaiful Hartono, Arief Lestari, Dinda |
Issue Date: | 2014 |
Abstract: | Prolong phosphorus fertilization has result in high unavailable P residue in soil. In this condition, further P fertilization will not result in higher plant productivity known as leveling off. P in soil exists in inorganic and organic forms, and in broad-range of availability from freely available to unavailable forms. The objective of this research was to study the effects of organic matter on rapidly available P extracted with 0.5 M NaHCO3 in submerged soil. Organic matter treatments were 0, 500, 750, 1000, 2000, and 5000 kg/ha. Research unit was 200 g soil (105oC ovendry weight) in a 10 cm diameter pot. Everyweek for 5 weeks, subsamples of each research unit was extracted for determining NaHCO3-P fraction following Tiessen and Moir 1993 procedure. The results showed that NaHCO3-P increased with increasing organic matter treatments and submersion time. Some dynamics, however, were found that likely related to redox dynamics in submerged soil. |
URI: | http://repository.ipb.ac.id/handle/123456789/73834 |
Appears in Collections: | UT - Soil Science and Land Resources |
Files in This Item:
File | Description | Size | Format | |
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A14dle.pdf Restricted Access | full text | 799.27 kB | Adobe PDF | View/Open |
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