论文部分内容阅读
绿色食品的概念应该是在优质的基础上更加强调果品无污染的突出特点,即绿色果品是无污染的优质果。因此为生产绿色果品,必须杜绝使用剧毒农药,尽量使用少残留的矿物农药,最好使用生物制剂,或利用天敌,或加强以农业措施为主的综合防治。这些无疑都对菜农和果农提出了更高的要求。为了降低成本,生产优质的菜和果,我校探讨了利用植物为原料制成农药杀虫。这类杀虫剂的特点是对人、畜安全;不污染环境;不易使害虫产生抗药性;有的对天敌及益虫杀伤力很小;对植物安全,无药害;易于就地取材;节省开支,使用经济。
The concept of green food should be based on the quality of more emphasis on the prominent feature of non-polluting fruits, green fruit is pollution-free high-quality fruit. Therefore, in order to produce green fruits, it is necessary to eliminate the use of highly toxic pesticides, use less residual mineral pesticides as much as possible, and it is better to use biological agents or to use natural enemies or to strengthen comprehensive prevention and control based on agricultural measures. These are undoubtedly put forward higher demands on vegetable growers and fruit growers. In order to reduce costs and produce high-quality vegetables and fruits, our school explores the use of plants as pesticides to make pesticides. Such insecticides are characterized by human, livestock safety; do not pollute the environment; not easy to produce pest resistance; some of the natural enemies and beneficial insects small lethal; plant safety, no phytotoxicity; Expenditure, the use of economy.