Diaryl methyl selenide derivative and agriculturally acceptable salt, preparation method and application thereof

The invention discloses a diarylmethyl selenide derivative as well as agriculturally acceptable salts, a preparation method and application thereof. The structure of the diarylmethyl selenide derivative is shown as a general formula (I). The compound shown in the general formula (I) is simple in preparation method, easily available in raw materials and low in cost, and can effectively show good inhibition activity on weeds and harmful plants in agriculture and forestry and other fields and show good growth and development promotion activity on various crops in the field of agricultural production; the compound of the general formula (I) has good poisoning and growth inhibition effects on barnyard grass, ageratum conyzoides, mikania micrantha and other agricultural weeds and harmful plants, and has a good growth promotion effect on rice flowering cabbage and other crops. The compound shown in the general formula (I) can be applied to plants through irrigation, spraying and water planting methods within the ran