【摘要】 试验比较了稻鸭共育、常规栽培和对照三个处理田间土壤环境的变化情况。试验表明,稻鸭共育土壤速效K、碱解N、速效P、全N和有机质含量均高于同期常规处理,且随着共育连续进行,不断增加;共育提高了土壤真菌、放线菌、固氮菌和氨化细菌的数量,并且氨化细菌随着共育的连续进行呈增加趋势;共育维持了土壤过氧化氢酶、脲酶和多酚氧化酶活性的稳定。更多还原

【Abstract】 The changes of soil environment in paddy field under three treatments were compared. The experiment showed that the soil alkali hydrolysadle N, available P, available K, total nitrogen and organic matter of rice-duck farming all were higher than the conventional treatment. And they increased gradually along with applying rice-duck farming continuously. Meanwhile, the soil Fungi, Azotobacter, Actinomycetes and Ammonifier under rice-duck farming were increased. Lastly the soil catalase, urease and polyphenol oxidase activities were sustained.更多还原