STUDIES ON THE CARBON-NITROGEN RATIO AND MICROBIOLOGICAL INVESTIGATION OF THE SOIL IN RICE-FIELD

Abstract

From the results obtained thus far, it is premature to draw any conclusion since the investigation began only last year. However several noteworthy facts may be reported at this time:
1. In those plots which received the barley straw alone in various quantity, the amount of crop was inverse ratio to the amount of straw used.
2. The application of the compost and red clover, gave comparatively good crop.
3. It is difficult to find any definite correlation between the crop productivity and the C: N ratio at this time. But on the average, wider the ratio gave thc better crop with exception of Plot 2.
4. The C: N ratio in all the plots, became some what the same while at the beginning, the different ratio was provided.
The microbiological analyses on each plot are in progress in view to find some correlation with the chemical analyses and crop productivity.