农药在大棚蔬菜上的残留消解

Residue Degradation of Pesticide on Plastic Shed Vegetables

通过对6种农药在7种大棚作物上的共14次农药残留消解试验,及与露地作物所作的比较表明,除粉锈宁在大棚草莓上的消解外,农药在大棚蔬菜上的残留消解速度要慢于露地蔬菜。大棚空间农药沉降于蔬菜,是消解慢的重要原因,而环境条件对消解的影响程度还需进一步研究。该文指出,消解慢和大棚空气中浓度高,是大棚生产中两个突出的农药污染问题,前者导致上市大棚蔬菜的农药超标率高,后者为农事操作人员带来了恶劣的工作条件,需采取综合防治措施。

Fourteen tests of residue degradation of six kinds of pesticide in seven shed corps compared with the field corps, showed that the degradation rates of pesticides on the plastic shed vegetables (except triadimefon on strawberry) were slower than in the field vegetables. The spatial pesticides in the shed deposited on the vegetables was an important reason of slow degradation, but the degree of degradation influenced by the environmental conditions should be further studied. The paper indicated that slow degradation and high concentration of pesticides in the shed space were two main prominent problems of pesticide pollution, the former brought about an excess of pesticide on plastic shed vegetables market, and the latter will bring about the adverse circumstance for the working staff.