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我县无霜期180天左右,过去种花生热量资源不足,而实行地膜覆盖栽培以后,可使5厘米地温增加220℃,对自然生态条件限制有局部的突破。在这种情况下,尽快筛选出比徐州68—4生育期略长、增产潜力更大的品种,是亟待解决的课题。我们从1981年开始引进海花1号,经过6年引种鉴定、区域试验、生产试验和大面积推广,基本达到了预期目的。一、材料和方法1981～1986年采用小区试验和示范对比相结合。头两年,主要引种鉴定,1983年开始进行了4年品种区域试验;1983～1984年,以徐州68—4为对照,参试品种有海花1号、花37、7406;1985～1986年,以濮阳77—4为对照,
My county frost-free period of 180 days or so, the past lack of resources for peanut calorie, and the implementation of plastic film mulch, 5 cm can increase the ground temperature of 220 ℃, the natural ecological conditions have a partial breakthrough. Under such circumstances, it is an urgent issue to screen out varieties with a slightly longer growth period and higher yield potential than that of Xuzhou 68-4. Since 1981, we have introduced Haihua No.1 and after six years of introduction and appraisal, regional experiments, production tests and large-scale promotion, we basically achieved the expected goal. First, the material and methods 1981 to 1986 with the district trial and demonstration comparison. The first two years, the main introduction of identification, began in 1983, four years of regional trials of varieties; 1983 ~ 1984, Xuzhou 68-4 as a control, the test varieties have flowers on the 1st, flowers 37,7406; 1985 ~ 1986 To Puyang 77-4 as a control,