论文部分内容阅读
３ 年的试验结果表明，防治番茄病毒病效果较好的药剂依次为：病毒Ａ，Ｎ１４ ＋ Ｓ５２ ，ＰＶ－ ８６ －１ ，抗毒剂１ 号，平均防效为５８ ．０９ ％ ～７１ ．７０ ％ ，防病增产幅度为１１ ．１６ ％ ～２９ ．４８ ％ ；综合防治平均防效达７０ ．３ ％ ，投入产出比为１∶１６ ．４ ，经济效益明显
The results of three years showed that the best anti-virus agents against tomato virus were A, N14 + S52, PV-86-1 and anti-virus agent No.1, with an average of 58. 09% ~ 71. 70%, disease prevention and increase rate of 11. 16% ~ 29. 48%; comprehensive prevention and control of the average effect of 70. 3%, input-output ratio of 1:16. 4, obvious economic benefits