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“802”喷施油菜能促进根系对养分的吸收,增强光合作用,对油菜生长和结实有明显功效。继1987年试验之后,1988年夏收油菜喷“802”共600亩,平均亩产92.8公斤,比对照亩增8.4公斤,增产10.42%,亩净增值7.5元,经济效益为1:8。 一、喷施效应 1.提高了产量构成系统的水平。全市三个点试验结果表明,喷“802”分枝部位为28.2厘米,比对照短5.5厘米;株分枝5.6条,比对照多0.5条,株角果219.9个,比对照多28.1个;千粒重3.42克,比对照高0.05克;株产量10.1克,比对照高1.6克;亩产109.7公斤,比对照增9.2公斤,增产9.15%。 2.增强了抗寒能力。1987年11月底遭强低温袭击,日均温度由9.2℃下降到1.6℃,最低温度由6.1℃下降到-0.8℃,使油菜遭受严重冻害。据对受冻油菜的调查:喷“802”冻株率为60.1%,比对照轻23.8%,冻指小2.5。从而有利于安全越冬。 二、喷施技术
“802” spraying rape can promote root absorption of nutrients, enhance photosynthesis, the rape growth and fruiting significant effect. Following the 1987 test, the summer harvest of summer oil sprinkled “802” a total of 600 acres, an average yield of 92.8 kilograms, 8.4 acres more than the control acres, an increase of 10.42%, net added value of 7.5 acres, the economic efficiency of 1: 8. First, the spray effect 1 to improve the level of production system. The results of three-point test in the city indicated that the sprayed “802” branch was 28.2 cm and shorter than the control by 5.5 cm. There were 5.6 branches and 0.5 more branches than the control, with 219.9 branches and 28.1 more than the control 3.42 grams, 0.05 grams higher than the control; the yield of 10.1 grams, 1.6 grams higher than the control; 109.7 kilograms per mu, 9.2 kilograms more than the control, an increase of 9.15%. 2. Enhanced cold resistance. At the end of November 1987, it was attacked by strong and low temperatures. The average daily temperature dropped from 9.2 ℃ to 1.6 ℃ and the minimum temperature dropped from 6.1 ℃ to -0.8 ℃, causing rapeseed suffered serious frost damage. According to the survey of frozen rapeseed: spraying “802” frozen plant rate of 60.1%, 23.8% lighter than the control, the freezing finger small 2.5. Thus contributing to safe winter. Second, spraying technology