2014•Unpublished venueRequires access
Utilization of Potassium in Returned Straw and Its Effect on Grain Yield in Rice
Kun Tian
Open publisher page 0 citations
Abstract
The paper studied the uptake and utilization characteristics of potassium in rice straw returned to field and its effects on grain yield of rice by pot experiment and field experiment with hybid rice Yueza 889 and conventional rice Hefengzhan as experi-ments material. The results indicated that 50% of chemical fertilizer potassium could be saved when all rice straw was returned to the field. Compared to the treatment with 100% chemical potassium application, the treatment with all straw returned plus 50% chemical potassium application obtained 6.55% higher grain yield in average, which was statistically significant, as a result of increased dry matter accumulation and grains per spike.