The effect of nursery and field fertilization on the growth and yield of rice variety bg79
1966
Enyi, C.A. B., Department of Agriculture, University of Ibadan, Nigeria.
Nursery and plot fertilization and early transplanting favoured shoot and dry matter production and increased the height of the plants. However, the effect of nursery manuring on the yield was due mainly to its positive effect on dry matter per shoot than on number of shoots per given area. The advantage of nursery manuring occurred only when the plots were also fertilized and seedlings transplanted early. The mechanisms of yield increases brought about by early transplanting, nursery and plot fertilization are discussed. Experiments in most rice growing countries have shown that nursery manuring did not lead to higher yields of paddy in the field. (Sethi 1940; Grist 1922). However in Philippines plants fertilized in the field gave a higher yield than those unfertilized or fertilized in the seed bed alone (Songcuya 1941). The age at which the seedlings are transplanted from the nursery to the field may be one of the deciding factors on whether nursery manuring is going to be advantageous or not. Since late transplanting of rice seedlings has been shown by Enyi(1963) to lead to a reduction in shoot number of the plant in the field, it may be assumed that the advantage of nursery fertilization, if any, is likely to occur when the seedlings are transplanted early. The present observations were on the effects of age of seedling from fertilized and unfertilized nursery on the growth and yield of swamp rice variety BG 79 when transplanted to fertilized and unfertilized plots.
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