Abstract:

Using ‘C Liangyou396’, a hybrid late rice variety, as the meterial, the effects of liquid silicon-potash fertilizer on resistant press per plant, dry matter production and seed setting rate were studied. The results showed that the application of liquid silicon-potash fertilizer shortened the basal internode length and elongated the panicle neck internode length, improved the resistant press per plant of rice, reduced the lodging index, and it was lowest at the amount of 3000 mL/hm2. Applying liquid silicon-potash fertilizer had effects on improvement of the plant biomass and matter translocation at grain-filling stage, increased the filling speed, grain weight, and the seed setting rate, both the highest values were obtained at the amount of 3000 mL/hm2. As considered comprehensively, the optimum amount of liquid silicon-potash fertilizer application was 3000 mL/hm2.