The effects of different nitrogen fertilizer application rates(pure nitrogen 0 kg/hm2,90 kg/hm2,150 kg/hm2,210 kg/hm2,270 kg/hm2)and planting density(30 cm×18 cm,30 cm×14 cm,30 cm×10 cm)on the yield and quality of high-quality edible rice Yangeng-939 were studied.The results showed that different nitrogen application rates and planting densities had a significant impact on the yield and quality of Yangeng-939.Low density and high nitrogen are still the means to significantly increase yield,while taking into account the premise of yield:under the conditions of density 30 cm×18 cm and nitrogen application rate 10 kg/667 m2,the best appearance income can be obtained;The best taste value benefits can be obtained under the conditions of a density of 30 cm×10 cm and a nitrogen application rate of 10kg/mu.And under low nitrogen conditions,the nitrogen utilization efficiency and other indicators of rice will significantly improve.
关键词
氮肥/密度/盐粳939/产量/稻米品质/氮素利用率
Key words
Nitrogen fertilizer/Density/Yangeng-939/Yield/rice quality/Nitrogen use efficiency
维普
万方数据