Abstract
Quantification of deforested soil's capacity to supply available N via mineralization and immobilization using {sup 15N} pool dilution is crucial to make fertilizer recommendation. The objective of this research was to measure the soil's capacity to minemlize and ilmnobilize N, so that the actual value of available N released by soil can be predicted. The results showed that Imperata grassland released the highest available N (amonium + nitrate) about 33.93 mg/kg/d and can immobilize 11.68 mg/kg/d of N. On the other hand, agriculture lields had the lowest inorganic N by nearly 23.15 mg/kg/d, and no immobilization occurred. The implication is that agriculture fields have a very low labile and stabile pool N (nearly 0), while Imperata grassland have capacity to store more pool N into labile or stabil pool (about 34%). In conclusion, dynamics of N cycling in ecosystem are dependent upon the content of pool C-N utilized by microorganisms and plants.
Handayani, I P;
Prawito, P;
[1]
Sisworo, E L
[2]
- Bengkulu University, Bengkulu (Indonesia)
- Center for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency, Jakarta (Indonesia)
Citation Formats
Handayani, I P, Prawito, P, and Sisworo, E L.
Quantification Of {sup 1}5{sup N} Internal Transformation To Assess Nitrogen Supply Capacity In Deforested Soil; Kuantifikasi Transformasi Internal {sup 5N} ntuk Memprediksi Daya Suplai Nitrogen Pada Lahan Paska Deforestasi.
Indonesia: N. p.,
2002.
Web.
Handayani, I P, Prawito, P, & Sisworo, E L.
Quantification Of {sup 1}5{sup N} Internal Transformation To Assess Nitrogen Supply Capacity In Deforested Soil; Kuantifikasi Transformasi Internal {sup 5N} ntuk Memprediksi Daya Suplai Nitrogen Pada Lahan Paska Deforestasi.
Indonesia.
Handayani, I P, Prawito, P, and Sisworo, E L.
2002.
"Quantification Of {sup 1}5{sup N} Internal Transformation To Assess Nitrogen Supply Capacity In Deforested Soil; Kuantifikasi Transformasi Internal {sup 5N} ntuk Memprediksi Daya Suplai Nitrogen Pada Lahan Paska Deforestasi."
Indonesia.
@misc{etde_20526384,
title = {Quantification Of {sup 1}5{sup N} Internal Transformation To Assess Nitrogen Supply Capacity In Deforested Soil; Kuantifikasi Transformasi Internal {sup 5N} ntuk Memprediksi Daya Suplai Nitrogen Pada Lahan Paska Deforestasi}
author = {Handayani, I P, Prawito, P, and Sisworo, E L}
abstractNote = {Quantification of deforested soil's capacity to supply available N via mineralization and immobilization using {sup 15N} pool dilution is crucial to make fertilizer recommendation. The objective of this research was to measure the soil's capacity to minemlize and ilmnobilize N, so that the actual value of available N released by soil can be predicted. The results showed that Imperata grassland released the highest available N (amonium + nitrate) about 33.93 mg/kg/d and can immobilize 11.68 mg/kg/d of N. On the other hand, agriculture lields had the lowest inorganic N by nearly 23.15 mg/kg/d, and no immobilization occurred. The implication is that agriculture fields have a very low labile and stabile pool N (nearly 0), while Imperata grassland have capacity to store more pool N into labile or stabil pool (about 34%). In conclusion, dynamics of N cycling in ecosystem are dependent upon the content of pool C-N utilized by microorganisms and plants.}
place = {Indonesia}
year = {2002}
month = {Jul}
}
title = {Quantification Of {sup 1}5{sup N} Internal Transformation To Assess Nitrogen Supply Capacity In Deforested Soil; Kuantifikasi Transformasi Internal {sup 5N} ntuk Memprediksi Daya Suplai Nitrogen Pada Lahan Paska Deforestasi}
author = {Handayani, I P, Prawito, P, and Sisworo, E L}
abstractNote = {Quantification of deforested soil's capacity to supply available N via mineralization and immobilization using {sup 15N} pool dilution is crucial to make fertilizer recommendation. The objective of this research was to measure the soil's capacity to minemlize and ilmnobilize N, so that the actual value of available N released by soil can be predicted. The results showed that Imperata grassland released the highest available N (amonium + nitrate) about 33.93 mg/kg/d and can immobilize 11.68 mg/kg/d of N. On the other hand, agriculture lields had the lowest inorganic N by nearly 23.15 mg/kg/d, and no immobilization occurred. The implication is that agriculture fields have a very low labile and stabile pool N (nearly 0), while Imperata grassland have capacity to store more pool N into labile or stabil pool (about 34%). In conclusion, dynamics of N cycling in ecosystem are dependent upon the content of pool C-N utilized by microorganisms and plants.}
place = {Indonesia}
year = {2002}
month = {Jul}
}