Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094

July 2013 Vol. 2(7): pp. 174-180

Copyright © 2015 Global Advanced Research Journals



Management of Acid Newly Opened Wetland Rice Fields

Sukristiyonubowo1) Heri Wibowo1), and Ai Dariah1)


1Indonesian Agency for Agricultural Research and Development, Soil Research Institute,

Soil Fertility Division, Jln Tentara Pelajar 12 Bogor.

*Corresponding Author’s

Tel: +6281226277259.

Accepted 16 July, 2013



Indonesia is one of the biggest producer and consumer of rice in the world. To meet the rice growing demand, Indonesia has conducted many efforts namely intensification and extensification including development of newly opened wetland rice fields. The soils allocated for development of newly opened wetland rice fields in Indonesia can be from dry and or/and wetland with mainly acid soil properties. Highly weathered soils, especially ultisols and oxisols are mainly granted for extending newly opened wetland rice areas originated from dry land, besides potential acid sulphate soil from wet land. These soils have low pH or acidic, low natural level of major plant nutrients, and they have Al, Mn and Fe in toxic levels. Application of 2 ton ha-1 year-1 dolomite, 2 ton ha-1 season-1 rice straw compost and mineral fertilizers (200 kg urea, 100 kg SP-36 and 100 kg KCl ha-1 season-1) improve the soil chemical properties. Therefore, practically to manage these soils and to improve the rice yield, addition of organic matter, lime and mineral fertiliser should be applied together. With these applications the rice yield of 3,5 – 4,2 tons ha-1 season-1 can be reached.

Keyword: Newly opened rice field, Acid soil, dolomite, compost and mineral fertiliser.


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