知識貝殼
知識貝殼
所屬欄目：英漢煙草科技
Topping is a decapitation process in tobacco culture practiced by removing blossoms and sometimes the top leaves of a plant in order to stimulate growth and development of remaining leaves for desired quality. Topping prevents the development of the seed ......（本文共 2379 字 ） [閱讀本文] >>