一、试验来源及目的“天达2116”是国家“863”计划成果推广产品,2001年～2003年黑龙江省农垦总局农业局连续三年进行联网试验,取得了理想的效果,现正进一步扩大示范推广面积。试验目的是针对北方寒地稻区自然生态特点,检验“天达2116”对北方粳稻提高抗逆作用及促熟增产、提质 First, the test source and purpose “Tianda 2116” is the national “863” plan to promote products, from 2001 to 2003, Heilongjiang Provincial Bureau of Land Reclamation Bureau for three consecutive years of networking experiments, and achieved satisfactory results, is to further expand the demonstration Promotion area. The purpose of the experiment is to examine the natural ecological characteristics of the northern cold paddy rice area, and to test the effect of “Tianda 2116” on enhancing the anti-retrogradation and promoting maturity and yield of northern japonica rice.