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铜鼓县位于赣西北,境内多山,全县7万多亩一晚分布在海拔180～900米的山排和坑垅,随着海拔升高,日平均气温相应降低,水稻生育期也相应延长。不少农户不能根据所在地的海拔高度和气候特点去选择杂交组合和安排最佳播种期,往往造成杂交一晚优势不能正常发挥,产量不理想。为了研究和分析上述关系,近年我们以汕优二号为材料,探讨了不同海拔杂交一晚不同播期对生育性状的影响,试图为本县因地制宜选用杂交组合和安排最佳播种期,提供科学依据。促进全县平衡增产。
Tonggu County is located in the northwestern Jiangxi Province, the territory of mountainous, the county more than 70,000 acres a night distribution at 180-900 meters above sea level and pits, with the elevation, the corresponding decrease in the average temperature, the corresponding growth of rice growth period . Many peasants can not choose the hybrid combination and arrange the optimal sowing date according to the altitude and climate characteristics of the locality where they are located, which often results in the one-hybrid advantage being unable to function normally and the yield unsatisfactory. In order to study and analyze the above relationship, in recent years, we Shanyou 2 as a material to explore the different sowing of different sowing different sowing date on reproductive performance, trying to select the appropriate local hybrid combinations and arrangements for the county to provide the best sowing time in accordance with. Promote balanced production increase throughout the county.