This experiment was carried out to investigate on the growth, yield behavior of phosphorus at different stage of growth under the different cultivating conditions in rice plants.
The results obtained were as follows;
1) The phosphorous contents was increased in the direct-sowing plots of the rooting time and the early stage of tillering, while in the middle and the later stage of growth, the transplanting plots was increased.
2) In the moisture contents, the direct-sowing plots was more increased than the transplanting plot in the rooting tune and the early stage of tillering, while in the later stage of growth, the transplanting plots was increased.
3) The plant height and the weight of dry matter were also increased in the direct-sowing plots of the early stage of tillering, oh the other hand, after that the transplanting plots was increased.
4) In the yield of grain, the transplanting plot was increased about 15% compared with the direct-sowing plots.
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