Effect of rice straw additions on production of organic acids in a flooded soil View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1977-06

AUTHORS

D. Niranjan Rao, D. S. Mikkelsen

ABSTRACT

Disposal of rice straw through soil incorporation may contribute to anaerobic fermentation processes producing concentrations of organic acids which are toxic to rice plants. The present studies were conducted to determine the kind, amount, and time of production of organic acids as a function of rice straw additions (0, 0.25, and 0.5 per cent of soil weight), and temperature (10, 20, and 30°C). Nine samples were taken at 5, and 10 day intervals for 60 days to measure concentrations of organic acids.Only acetic acid was detected in the incubated soil with rice straw added. The amount and peak production of acetic acid increased with the rate of straw added and temperature. Acetic acid concentrations varied between 10.6 and 22.7 μeq/20 g soil, and the peak production occurred between 15 and 20 days after incubation. Organic acids were not found in sufficient amounts to affect the growth of rice plants grown in soils that were not previously puddled or in a reduced state. More... »

PAGES

303-311

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00011489

DOI

http://dx.doi.org/10.1007/bf00011489

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1029745540


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