期刊论文

A PRELIMINARY REPORT ON THE CHEMICAL CONTROL OF TOBACCO MOSAIC DISEASE

中文

湖南农业大学学报(自然科学版)

1007-1032

1992

S2

483-489

本校为第一机构

1989～1991年,在湖南郴州、浏阳等烟区进行烟草花叶病的药剂防治试验.6种药剂比较试验结果,以植病灵效果较好,防效为60%～89.16%.多点小区试验防效为68.44%～84.62%.大面积示范试验防效为65.14%～78.26%,平均增产205.50kg/ha,增值1250.10元/ha,增加上等烟比例13.92%,提高均价0.47元,投入与产出比为1:13.78.植病灵不同施药时期和次数防治试验结果表明,若仅施药1次,以团棵期施药最好,单就施药次数比较,以在苗床期(移栽前7d),移栽活苗后,团棵期施药3次效果最佳.

This paper reports the contro effects of 6 chemicals on Tobacco Mosaic Disease (TMD) in tobacco fields during 1989～1991. Of them Zhibingling (ZBL) is of the best effect, reaching 60%～89.16%. The control effect in multi site plot is 68.44%～86.62% and that in large area demonstration 65.14%～78.26%, with average yield per ha. increased by 250.50 kg, output value by 1250.10 yuan proportion of superior tobacco by 13.97%, average price by 0.47 yuan, and the ratio of invest/out being 1:13 78. when ZBL is sprayed once during growth period the best ...