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http://repository.ipb.ac.id/handle/123456789/74450
Title: | Perubahan Fraksi Fosfor Lambat Tersedia pada Tanah Tergenang yang Diameliorasi Bahan Organik |
Authors: | Anwar, Syaiful Hartono, Arief Mandalika, Viona Septia |
Issue Date: | 2014 |
Abstract: | The low availability and easily fixed phosphorus (P) in soil resulted in heavy and continuous P fertilization by farmers, leading to accumulation of residue-P in soil. In such condition, further P fertilization will not result in higher plant productivity known as leveling off. One way to increase the availability of residual P in soil is to add organic matter. There are various forms of P in the soil, from soluble to unavailable phosphorus can also be differenciated as inorganic and organic forms, where the sum of both referred as total-P. The objective of this research was to study the changes of slow-available phosphorus fraction in a submerged soil ameliorated with organic matter effect of organic matter (extracted with 0.1 M NaOH). Research unit was 200 g (oven-dry, 105°C) in a 10 cm pot. The soil was treated with 0, 500, 750, 1000, 2000, and 5000 kg/ha, and submerged for 5 weeks. Every week for 5 weeks, subsample of each research unit was extracted for determination of NaOH-P following Tiessen and Moir 1993 procedure. The results showed that in general NaOH-Pi, NaOH-Po, and NaOH-Pt increase with increasing organic matter treatments. There was a dynamic pattern of NaOH-Pt, NaOH-Pi, and NaOH-Po with the time of submersion, in which in general NaOH-P initially decreased, increased, then finally decreased. |
URI: | http://repository.ipb.ac.id/handle/123456789/74450 |
Appears in Collections: | UT - Soil Science and Land Resources |
Files in This Item:
File | Description | Size | Format | |
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A14vsm.pdf Restricted Access | full text | 1.06 MB | Adobe PDF | View/Open |
Abstrak.pdf Restricted Access | Abstract | 282 kB | Adobe PDF | View/Open |
Bab I Pendahuluan.pdf Restricted Access | Bab I Pendahuluan | 285.48 kB | Adobe PDF | View/Open |
Bab II Metode.pdf Restricted Access | Bab II Metode | 365.83 kB | Adobe PDF | View/Open |
Bab III Hasil dan Pembahasan.pdf Restricted Access | Bab III Hasil dan Pembahasan | 813.82 kB | Adobe PDF | View/Open |
Bab IV Simpulan dan Saran.pdf Restricted Access | Bab IV Simpulan dan Saran | 281.19 kB | Adobe PDF | View/Open |
Daftar Pustaka.pdf Restricted Access | Daftar Pustaka | 284.21 kB | Adobe PDF | View/Open |
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