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在苹果根际用不同价态、不同浓度的铁处理玉米秸秆后接种蚯蚓。试验表明:蚯蚓在20 000 mg/L二价铁和三价铁处理的秸秆中可以成活并把秸秆转化为蚯蚓粪,促进苹果根系生长;蚯蚓对二价铁的适应性高于三价铁;没有用铁处理的秸秆接种蚯蚓新根量明显少于用铁处理的;2种不同价态的铁都是以5 000 mg/L的新根量最多;蚯蚓显著促进根系生长,没有接种蚯蚓的处理新根量显著少于接种蚯蚓的处理。
In the apple rhizosphere with different valence, different concentrations of iron after treatment corn stalk inoculated earthworms. The results showed that the earthworm could survive in the 20 000 mg / L ferrous and ferric iron straw, convert the straw into vermicompost and promote the growth of apple root. The adaptability of earthworm to ferrous iron was higher than that of ferric iron. The amount of earthworm that was not treated with iron was significantly less than the amount of earthworm inoculated with iron; the amount of new roots with the highest content of 5 000 mg / L was the highest in the two kinds of iron with different valences; the earthworm significantly promoted the growth of the root without earthworm The treatment of new roots was significantly less than the treatment of earthworms inoculation.