论文部分内容阅读
通过不同施肥时期试验,研究不同施肥时期对不同穗型水稻品种群体结构及产量的影响,其目的是为寒地水稻生产提供理论支持和技术指导。笔者研究结果表明,穗数型品种‘牡丹江19’群体结构、产量最佳的处理为分底肥、蘖肥和粒肥3次施入的处理,比其他处理增产17.9%～34.3%。穗重型品种‘系选1号’群体结构、产量及产量构成因子最佳的处理为分底肥、蘖肥、穗肥和粒肥4次施入的处理,比其他处理增产8.3%～22.6%。
The effects of different fertilization periods on population structure and yield of different panicle type rice cultivars were studied through different fertilization periods. The purpose was to provide theoretical support and technical guidance for rice production in cold regions. The results of the author’s study showed that the population structure and yield of ’Mudanjiang 19’, a panicle type variety, were the best for three treatments, ie basal fertilizer, tillering fertilizer and granulation fertilizer, and increased by 17.9% -34.3% than other treatments. The treatment of spike heavy variety ’Xianyan 1’ was the best in terms of structure, yield and yield components. It was 8.3% ~ 22.6% more than the other treatments.