Citation

Yoneyama, T., Lee, K.-K., and T. Yoshida, Decomposition of rice residues in tropical soils. IV. The effect of rice straw on nitrogen fixation by heterotrophic bacteria in some Philippine soils. Soil Sci. Plant Nutr. 23: 287-295, 1977.

Abstract

The acetylene-reducing activity of waterlogged soils was simulated by the incorporation of rice straw at a relatively early stage of its decomposition. The straw caused a decrease in the inorganic nitrogen and in redox potential, making a favorable environment for N2-fixing bacteria. But the stimulation of nitrogen fixation was observed only when the soils were kept waterlogged. Soils of Maahas and Banue which had not been air dried showed a fairly high acetylene-reducing activity when rice straw was incorporated at a ratio of 0.5 or 1.0 percent. Also the rice stubble showed high acetylene-reducing activity when the stubbled soil was kept waterlogged.

Country, State, District, etc.

Philippines

Language

English

Material

rice straw, rice stubble

Use category

soil nutrients