Effects of Rice Straw Combined with Inorganic Fertilizer on Grain Filling and Yield of Common Buckwheat

This study aims to clarify the effect of rice straw combined with inorganic fertilizer on grain-filling characteristics and yield formation common buckwheat (Fagopyrum esculentum Moench) provide a scientific basis for utilization fertilization in Guizhou Province.Common ‘Fengtian1’ was field-grown treated no (CK), normal (SF), full 20% reduction conventional (SH), 40% (SM), 80% inconventional (SL), (HT). The results showed that initial growth power (R0), maximum average rate, starch synthase activity superior grains were higher than those inferior grains. Compared CK, treatments fertilizers remarkably increased contents available nitrogen, potassium, phosphorus, organic matter rhizosphere buckwheat. SH SF remarkablyimproved contribution rate agronomic promoted root growth, enhanced branching enzyme soluble activities treatment considerably number per plant, grain weight 100-grain weight, final yield. Thus, fertilizers, particularlythe treatment, should be recommended as an method promoting filling increasing