英语语法分析

Process for preparing pyridazinone derivatives, and insecticidal, acaricidal, nematicidal, fungicidal compositions.

达嗪酮衍生物的制备方法及其杀虫、杀螨，杀线虫，杀真菌组合物。

Five strains with strong nematicidal activity were obtained in the analysis with the fermentation liquid extract of some isolates.

室内初步测定了部分菌株的发酵粗提液的杀线虫活性，获得五株杀线虫活性较强的菌株。

Nematicidal activity of aloperine, cytisine, N methylcytisine and matrine was bioassayed by the agar medium method and the cotton ball method.

使用培养基法和棉球法测定了苦豆碱、野靛碱、甲基野靛碱、苦参碱对松材线虫的杀线活性。