7Hyder P W, Fredrickson E L, Estell R E, et al. Transport of phenolic compounds from leaf surface of creosotebush and tarbush to soil surface by precipitation[J]. Journal of Chemical Ecology,2002,28(12):2475 -2482.
8Yu J Q, Matsui Y. Phytotoxic substances in root exudates of cucumber (Cucumis sativus L.) [J]. Journal of Chemical Ecology, 1994,20(1): 21-31.
