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Nutrient balances of wetland rice fields for the semarang district (Indonesia)

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Abstract
Data from 1978 to 2003 were analyzed to evaluate the history of rice yields, rice-producing area, and total rice production for the Semarang District of Indonesia. The data were grouped according to the 5-year development plans executed in Indonesia, called PELITA (Pembangunan Lima Tahun). Nitrogen, phosphorus and potassium balances of the wetland rice fields were assessed for the same period. The highest average rice yield, about 5.10 t ha-1, was reached during the PELITA V and the economic crisis era. In general, the N, P, and K balances were found to be negative, which points towards nutrient mining from the rice fields. When a high production level is targeted, nutrient mining can only be avoided by recycling rice straw and applying fertilizers at high rates.
Keywords
NITROGEN, PADDY FIELD, SOIL, FLOWS, CHINA, nutrient balance, wetland rice, nitrogen, phosphorus, potassium, ECONOMIC-PERFORMANCE, AMMONIA VOLATILIZATION, FARMING SYSTEMS NUTMON

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Please use this url to cite or link to this publication:

Chicago
Sukristiyonubowo, Sukris, Gijs Du Laing, and Marc Verloo. 2010. “Nutrient Balances of Wetland Rice Fields for the Semarang District (Indonesia).” Journal of Sustainable Agriculture 34 (8): 850–861.
APA
Sukristiyonubowo, Sukris, Du Laing, G., & Verloo, M. (2010). Nutrient balances of wetland rice fields for the semarang district (Indonesia). JOURNAL OF SUSTAINABLE AGRICULTURE, 34(8), 850–861.
Vancouver
1.
Sukristiyonubowo S, Du Laing G, Verloo M. Nutrient balances of wetland rice fields for the semarang district (Indonesia). JOURNAL OF SUSTAINABLE AGRICULTURE. 2010;34(8):850–61.
MLA
Sukristiyonubowo, Sukris, Gijs Du Laing, and Marc Verloo. “Nutrient Balances of Wetland Rice Fields for the Semarang District (Indonesia).” JOURNAL OF SUSTAINABLE AGRICULTURE 34.8 (2010): 850–861. Print.
@article{1174636,
  abstract     = {Data from 1978 to 2003 were analyzed to evaluate the history of rice yields, rice-producing area, and total rice production for the Semarang District of Indonesia. The data were grouped according to the 5-year development plans executed in Indonesia, called PELITA (Pembangunan Lima Tahun). Nitrogen, phosphorus and potassium balances of the wetland rice fields were assessed for the same period. The highest average rice yield, about 5.10 t ha-1, was reached during the PELITA V and the economic crisis era. In general, the N, P, and K balances were found to be negative, which points towards nutrient mining from the rice fields. When a high production level is targeted, nutrient mining can only be avoided by recycling rice straw and applying fertilizers at high rates.},
  author       = {Sukristiyonubowo, Sukris and Du Laing, Gijs and Verloo, Marc},
  issn         = {1044-0046},
  journal      = {JOURNAL OF SUSTAINABLE AGRICULTURE},
  keyword      = {NITROGEN,PADDY FIELD,SOIL,FLOWS,CHINA,nutrient balance,wetland rice,nitrogen,phosphorus,potassium,ECONOMIC-PERFORMANCE,AMMONIA VOLATILIZATION,FARMING SYSTEMS NUTMON},
  language     = {eng},
  number       = {8},
  pages        = {850--861},
  title        = {Nutrient balances of wetland rice fields for the semarang district (Indonesia)},
  url          = {http://dx.doi.org/10.1080/10440046.2010.519199},
  volume       = {34},
  year         = {2010},
}

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