Studies of Direct-Sowing Culture by Broadcasting Seeds on a Submerged Paddy Field : No. 8 Effects of the amount of fertilizer and different proportions of basic fertilizer to top dressnig on the growth and yield of rice

Abstract

With a view to comparing and studying the effects of the amount of fertilizer and different proportions of the basic fertilizer to the tod dressing on rice yield. This experiment was carried out in 1966, using a varity, HOYOKU in the spacing of 150 hills/m² which was approximately considered a proper spacing in the previous experiment (No. 7). The results showed that 15-18 kg of nitrogen in fertilizer and the proportion of one basic fertilizer to five top dressing increased rice yield and the weight of 1, 000 grains.