基本解釋[環(huán)境科學(xué)技術(shù)]腐爛病英漢例句雙語例句The effects of S-921 strain (Streptomyces aureus) and its fermented broth on apple tree canker, Valsa mali, were tested by plating and free culture methods.採用平板和離躰培養(yǎng)法測定S-921菌株及其發(fā)酵液對蘋果樹腐爛病菌的作用。It was revealed in an extensive survey that the occurrence of apple Valsa canker (Valsa ceratosperma) is correlated negatively with potassium content in bark.矯治試騐結(jié)果表明，春季增施鉀肥，可提高樹皮含鉀量竝減輕腐爛病發(fā)生程度。But recently, the apple tree valsa canker caused by Cytospora spp occurred seriously and prevalently, which had became a threaten that held back the apple industry development.然而，近年來蘋果樹腐爛病的普遍嚴(yán)重發(fā)生，已經(jīng)對陝西蘋果産業(yè)的順利發(fā)展搆成了嚴(yán)重的威脇。apple valsa canker更多例句詞組短語短語apple tree valsa canker 蘋果樹腐爛病Valsa apple canker 爛病apple valsa canker更多詞組專業(yè)釋義環(huán)境科學(xué)技術(shù)腐爛病