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Kharisun
LPPM - Universitas Jenderal Soedirman
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PENURUNAN PENGUAPAN AMONIA PADA PADI SAWAH AKIBAT PEMBERIAN ZEOLIT ALAM DAN PUPUK UREA TABLET REDUCTION OF AMMONIA VOLATILIZATION IN RICE CAUSED BY ADDING NATURAL ZEOLITE AND PRILLED UREA FERTILIZER , Kharisun
Pembangunan Pedesaan Vol 5, No 2 (2005)
Publisher : Pembangunan Pedesaan

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Abstract

The research was aimed at investigating the effect of natural zeolite of Tasikmalayan deposit and urea fertilizer on ammonia volatilization, fertilizer usage efficiency, and rice yield. This research was a pot experiment using Eutrudept soil type conducted in a glass house. The experiment was factorially arranged in a randomized block design. The factors tested were level of natural zeolite (0, 1000, and 2000 kg/ha) and urea fertilizer (0, 100, and 200 kg N prilled urea/ha and 0, 100, and 200 kg N supergranule urea/ha). Ammonia emitted was determined using Sulfuric Acid Entrapment System. Application of natural zeolite reduced volatilized N by 46%, from 78.78 mg N/pot to 42.11 mg N/pot. The highest volatilized N was observed at the application of prilled urea at 200 kg N/ha (197.23 mg/pot).
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