On the compensation of paddy rice,

[摘要] In this experiment, the Norin No.32 was used as a test rice plant. By doing BAIDO during the growing period of rice-plant, the growth of them was injured. Those compensations of the test rice plants that appeared in consequence of BAIDO were as follows; 1. In the case BAIDO was done comparatively earlier, for example at the A section that BAIDO was done on July 4, the tillers in the early period of growth of rice plants were injured. Compared with the no treatment section (the D section), the tillers and their effectuation temporarily decreased at the treatment section. But afterwards the tillers were promoted, and the tiller's number and their effectuation were increased. Especially the nods that grew some time after the injure remarkably compensated. 2. At the C section, BAIDO was done on July 20 and it was directly before the stage of premodial panicle development. So, the compensation that effectuated the culms tillered lately was recognized. But the compensation for the culms tillered early was rather chief and powerful. 3. At the E section, BAIDO was done on August 4 and it was already at stage of premodial panicle development. So the injure was powerful. And compared with the A and C section, the range of compensations was narrow. The compensation increased only the ear's weight of the culms tillered in the middle period of growth of rice-plant.

[学科分类] 农业科学（综合）