论文部分内容阅读
新郑枣区,面积为18万亩。结果枣树约为350万株,历史最高年产量近1400万公斤。1984年下降到130万公斤,1986年由于推广应用了枣树病虫的综合防治技术,对恢复树势,提高总产,起到了立竿见影的作用。红枣年产量回升到1200万公斤,从而证明,对枣树病虫害,由单打一防治法,转向混合药剂,多虫或病虫兼治的综合防治;并因时因虫制宜,采用人工,物理,化学,生物防治措施,科学地把治虫,防病,追肥,喷激素
Xinzheng jujube area, an area of 18 acres. Results jujube is about 3.5 million, the highest annual output of nearly 14 million kg. 1984 dropped to 1.3 million kilograms in 1986 due to the promotion and application of jujube pest control techniques to restore the tree vigor and increase the total output has played an immediate role. Jujube output rose to 12000000 kilograms, which proves that the jujube tree pests and diseases, from a single one prevention and control method, to mixed agents, insects or pests and diseases of the comprehensive prevention and control; and due to insect system, the use of artificial, physical, Chemical, biological control measures, scientific control of pests, disease prevention, topdressing, spraying hormone