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疏附县近几年小麦播种面积在39—40万亩,单产和总产呈同步上升的趋向。就品种布局方面以早熟唐山6898为当家品种,占全县小麦总播种面积的50％。该品种自引种推广以来都显示了增产作用,深受农民欢迎。 据本县多年小麦产量资料分析,播种面积和单产的关系式为y=4895-4.76x,r=-0.3408。播种面积和总产的关系式为y=4175+55.4x,r=0.1914。而单产和总产关系式则为y=985.5+35.1x,r=0.81。如此可看出稳定小麦播种面积,主攻单产来增加总产的方针是妥当的。
Shufu County in recent years, sown area of 39-40 mu of wheat, yield and total output showed a synchronous increase in the trend. Variety layout to early Tangshan 6898 as a species, accounting for 50% of the county’s total sown area of wheat. The variety since the introduction of promotion have shown the role of stimulation, welcomed by farmers. According to the county many years of wheat yield data analysis, sowing area and yields of the relationship y = 4895-4.76x, r = -0.3408. The relationship between sown area and total production is y = 4175 + 55.4x, r = 0.1914. The relationship between yield and total production y = 985.5 + 35.1x, r = 0.81. So it can be seen that it is appropriate to stabilize the sown area of wheat and to focus on the policy of increasing yield by increasing yields.