Production of N2O, CO2 gases and microbe responses in the soil amended with urea granulated zeolite

Abstract This research study aims to determine the production of nitrous oxide (N2O), carbon dioxide (CO2), the rate of ammonium-nitrate, microbe responses in soil following the addition of urea coated by zeolite under soil incubated. The result showed that urea granulated with zeolite in soil sample had a significant effect on the production of CO2and have no significant increase N2O productions. Therefore, the addition of urea with zeolite seems to decrease the production of N2O compared to urea alone. The concentrations of ammonium and nitrate during incubation time were significantly affected by the amended type of fertilizers. The availability of ammonium and nitrate in soil were increased by addition of urea zeolite 30%. The urea combinedzeolite increases the growth of the fungi population, while population of ammonium oxidizer bacteria seems appearedlower in soil that amended with fertilizer compared to the control. The study showed that urea granulated with zeoliteincreased the time availability of soil nitrogen

Production of N2O, CO2 gases and microbe responses in the soil amended with urea granulated zeolite

This research study aims to determine the production of nitrous oxide (N2O), carbon dioxide (CO2), the rate of ammonium-nitrate, microbe responses in soil following the addition of urea coated by zeolite under soil incubated.The result showed that urea granulated with zeolite in soil sample had a significant effect on the production of CO2and have no significant increase N2O productions.Therefore, the addition of urea with zeolite seems to decrease the production of N2O compared to urea alone.The concentrations of ammonium and nitrate during incubation time were significantly affected by the amended type of fertilizers.The availability of ammonium and nitrate in soil were increased by addition of urea zeolite 30%.The urea combinedzeolite increases the growth of the fungi population, while population of ammonium oxidizer bacteria seems appearedlower in soil that amended with fertilizer compared to the control.The study showed that urea granulated with zeoliteincreased the time availability of soil nitrogen

Produksi Gas Nitrogen Oksida (N2O), Karbon Dioksida (CO2) dan Laju Nitrifikasi Serta Respon Mikroba Tanah Terhadap Pemberian Pupuk Urea Berselaput Zeolit Pada Tanah

Penelitian ini bertujuan untuk mengetahui produksi gas nitrogen oksida (N2O), karbon dioksida (CO2) dan perubahan amonium nitrat pada tanah yang diberi pupuk urea dengan bahan lepas lambat serta mengetahui populasi mikroba tanah bakteri pengoksidasi amonium dan jamur pada tanah yang diberi pupuk urea dengan bahan lepas lambat amonium. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL). Sampel gas yang telah diambil kemudian dianalisis dengan menggunakan kromatografi gas sedangkan pengukuran kadar amonium nitrat dilakukan dengan menggunakan spektofotometer. Analisis yang digunakan untuk uji gas nitrogen oksida (N2O) dan karbon dioksida (CO2) serta amonium nitrat yaitu analisis variansi (ANOVA) dan dilanjutkan dengan uji tukey sedangkan metode pengujian bakteri pengoksidasi amonium menggunakan metode most probable number (MPN) sedangkan jamur dengan metode standar plate count (SPC). Hasil yang diperoleh menunjukkan pemberian pupuk urea dengan bahan lepas lambat pada sampel tanah inkubasi berpengaruh nyata terhadap produksi gas karbon dioksida (CO2) dan tidak berpengaruh nyata pada nitrogen oksida (N2O). Pemberian pupuk urea bahan lepas lambat pada sampel tanah inkubasi berngaruh nyata terhadap perubahan amonium dan nitrat. Pemberian pupuk urea bahan lepas lambat pada sampel tanah inkubasi tidak berpengaruh nyata terhadap jumlah populasi mikroba tanah yakni bakteri pengoksidasi amonium (AOB) dan jamur tanah. Kata kunci : N2O, CO2, pupuk urea, zeolit, bakteri pengoksidasi amonium