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- Title
Effects of Nitrogen Rate on Blast Resistance and Grain Yield of Super Early Hybrid Rice Luliangyou 996.
- Authors
Jing ZHOU; Guiyuan MENG; Chenzhong JIN; Guohui MA; Jirui LONG
- Abstract
Super early hybrid rice Luliangyou 996 was the materials for this experiment. This paper focused on the influences of different nitrogen rates on blast resistance and grain yield. Studies suggested that with the increase of nitrogen rate, there were no distinct changes in the sick grain rate and sickness index, but the fifth grade of panicle blast rate rose gradually. When the nitrogen was too much (270 kg/hm²), the sick grain rate and sickness index were the highest. The yield rose along with the addition of nitrogen if the amount of applied nitrogen was within the range of 0 to 180 kg/hm², and the yield would decrease with the addition of nitrogen if the amount of applied nitrogen was over 180 kg/hm². Considering the sickness, output and economic benefit of rice, it is better to applied 90 to 135 kg/hm² of nitrogen for Luliangyou 996.
- Subjects
HYBRID rice; NITROGEN fertilizers; GRAIN yields; FIELD crops; ORYZA
- Publication
Agricultural Science & Technology, 2015, Vol 16, Issue 9, p1959
- ISSN
1009-4229
- Publication type
Article