安徽农学通报
安徽農學通報
안휘농학통보
AUHUI AGRICULTURAL SCIENCE BULLETIN
2012年
21期
124-126
,共3页
施肥%秸秆还田%土壤微生物区系
施肥%秸稈還田%土壤微生物區繫
시비%갈간환전%토양미생물구계
Fertilization%Returning straw%Soil microflora
不同施肥及秸秆还田方式对土壤微生物数量及分布有很大影响。从微生物总数看，秸秆翻埋处理JH3〉常规处理JH1〉秸秆全层还田处理JH2；分层施肥秸秆表面覆盖处理BH3〉分层施肥保护性耕作处理BH1〉干混施肥保护性耕作处理BH2。秸秆还田有利于土壤微生物数量的增加，其中秸秆全层还田对于微生物总数的增加不明显，但有利于耕作层土壤中放线菌数量的增加。保护性耕作和秸秆表面覆盖只进行土壤表层耕作造成了土层的“上富下贫”，保护性耕作有利于土壤0-10cm土层内微生物数量的提高。
不同施肥及秸稈還田方式對土壤微生物數量及分佈有很大影響。從微生物總數看，秸稈翻埋處理JH3〉常規處理JH1〉秸稈全層還田處理JH2；分層施肥秸稈錶麵覆蓋處理BH3〉分層施肥保護性耕作處理BH1〉榦混施肥保護性耕作處理BH2。秸稈還田有利于土壤微生物數量的增加，其中秸稈全層還田對于微生物總數的增加不明顯，但有利于耕作層土壤中放線菌數量的增加。保護性耕作和秸稈錶麵覆蓋隻進行土壤錶層耕作造成瞭土層的“上富下貧”，保護性耕作有利于土壤0-10cm土層內微生物數量的提高。
불동시비급갈간환전방식대토양미생물수량급분포유흔대영향。종미생물총수간，갈간번매처리JH3〉상규처리JH1〉갈간전층환전처리JH2；분층시비갈간표면복개처리BH3〉분층시비보호성경작처리BH1〉간혼시비보호성경작처리BH2。갈간환전유리우토양미생물수량적증가，기중갈간전층환전대우미생물총수적증가불명현，단유리우경작층토양중방선균수량적증가。보호성경작화갈간표면복개지진행토양표층경작조성료토층적“상부하빈”，보호성경작유리우토양0-10cm토층내미생물수량적제고。
Different fertilization and returning straw affected the quantity and distribution of paddy soil microflora. From the total number of microbes to see, which on returning crop straw into soil treatment (JH3 ) were more than on conventional treatment (JH1 ), and more than on returning straw full -thickness treatment (JH2 ). At the same time, the total number of microbes on stratified fertilization and straw mulching surface ( BH3 ) werr more than on stratified fertilization and conserva- tion tillage( BH1 ) ,then dry mixed fertilizer and conservation tillage( BH2 ). Returning straw was beneficial to increasing the quantity of soil microbial. Returning straw full - thickness treatment didn' t obviously increase the total number of microbes, but conducive to increasing the quantity of actinomyeetes on arable layer. Conservation tillage and straw mulching surface caused rich on the lean because of only soil surface tillage. Conservation tillage availed to increase amount of soil microbe at 0 -10cm.
