Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission
Development of appropriate land management techniques to attain sustainability and increase the N use efficiency of crops in the tropics has been gaining momentum. The nitrous oxides (N2Os) affect global climate change and its contribution from N and C management systems is of great significance. Th...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/tsw.2001.453 |
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| author | M.I. Khalil A.B. Rosenani O. Van Cleemput C.I. Fauziah J. Shamshuddin |
| author_facet | M.I. Khalil A.B. Rosenani O. Van Cleemput C.I. Fauziah J. Shamshuddin |
| author_sort | M.I. Khalil |
| collection | DOAJ |
| description | Development of appropriate land management
techniques to attain sustainability and increase
the N use efficiency of crops in the tropics has
been gaining momentum. The nitrous oxides
(N2Os) affect global climate change and its contribution
from N and C management systems is
of great significance. Thus, N transformations and
N2O emission during maize-groundnut crop rotation
managed with various N sources were studied.
Accumulation of nitrate (NO3
–) and its disappearance
happened immediately after addition of
various N sources, showing liming effect. The mineral
N retained for 2–4 weeks depending on the
type and amount of N application. The chicken
manure showed rapid nitrification in the first week
after application during the fallow period, leading
to a maximum N2O flux of 9889 μg N2O-N m–2 day–
1. The same plots showed a residual effect by
emitting the highest N2O (4053 μg N2O-N m–2 day–
1) during maize cultivation supplied with a halfrate
of N fertilizer. Application of N fertilizer only
or in combination with crop residues exhibited
either lowered fluxes or caused a sink during the
groundnut and fallow periods due to small availability
of substrates and/or low water-filled pore
space (<40%). The annual N2O emission ranged
from 1.41 to 3.94 kg N2O-N ha–1; the highest was estimated from the chicken manure plus crop residues
and half-rate of inorganic N-amended plots.
Results indicates a greater influence of chicken
manure on the N transformations and thereby N2O
emission. |
| format | Article |
| id | doaj-art-f455153cdd60426a8ef29d8200fa5b21 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f455153cdd60426a8ef29d8200fa5b212025-02-03T06:00:20ZengWileyThe Scientific World Journal1537-744X2001-01-01132032710.1100/tsw.2001.453Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O EmissionM.I. Khalil0A.B. Rosenani1O. Van Cleemput2C.I. Fauziah3J. Shamshuddin4Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, BangladeshSoil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, BangladeshSoil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, BangladeshSoil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, BangladeshSoil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, BangladeshDevelopment of appropriate land management techniques to attain sustainability and increase the N use efficiency of crops in the tropics has been gaining momentum. The nitrous oxides (N2Os) affect global climate change and its contribution from N and C management systems is of great significance. Thus, N transformations and N2O emission during maize-groundnut crop rotation managed with various N sources were studied. Accumulation of nitrate (NO3 –) and its disappearance happened immediately after addition of various N sources, showing liming effect. The mineral N retained for 2–4 weeks depending on the type and amount of N application. The chicken manure showed rapid nitrification in the first week after application during the fallow period, leading to a maximum N2O flux of 9889 μg N2O-N m–2 day– 1. The same plots showed a residual effect by emitting the highest N2O (4053 μg N2O-N m–2 day– 1) during maize cultivation supplied with a halfrate of N fertilizer. Application of N fertilizer only or in combination with crop residues exhibited either lowered fluxes or caused a sink during the groundnut and fallow periods due to small availability of substrates and/or low water-filled pore space (<40%). The annual N2O emission ranged from 1.41 to 3.94 kg N2O-N ha–1; the highest was estimated from the chicken manure plus crop residues and half-rate of inorganic N-amended plots. Results indicates a greater influence of chicken manure on the N transformations and thereby N2O emission.http://dx.doi.org/10.1100/tsw.2001.453 |
| spellingShingle | M.I. Khalil A.B. Rosenani O. Van Cleemput C.I. Fauziah J. Shamshuddin Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission The Scientific World Journal |
| title | Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission |
| title_full | Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission |
| title_fullStr | Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission |
| title_full_unstemmed | Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission |
| title_short | Nitrogen Management in a Maize-Groundnut Crop Rotation of Humid Tropics: Effect on N2O Emission |
| title_sort | nitrogen management in a maize groundnut crop rotation of humid tropics effect on n2o emission |
| url | http://dx.doi.org/10.1100/tsw.2001.453 |
| work_keys_str_mv | AT mikhalil nitrogenmanagementinamaizegroundnutcroprotationofhumidtropicseffectonn2oemission AT abrosenani nitrogenmanagementinamaizegroundnutcroprotationofhumidtropicseffectonn2oemission AT ovancleemput nitrogenmanagementinamaizegroundnutcroprotationofhumidtropicseffectonn2oemission AT cifauziah nitrogenmanagementinamaizegroundnutcroprotationofhumidtropicseffectonn2oemission AT jshamshuddin nitrogenmanagementinamaizegroundnutcroprotationofhumidtropicseffectonn2oemission |