BACTERIA IN MANURE AND ON MANURED AND NPK-FERTILIZED SILAGE CROPS
BACTERIA IN MANURE AND ON MANURED AND NPK-FERTILIZED SILAGE CROPS
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DOI：
10.1002/jsfa.2740550409
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发表时间：
1991-01-01
影响因子：
4.1
通讯作者：
LINDGREN, SE
中科院分区：
文献类型：
--
作者：
OSTLING, CE;LINDGREN, SE
属于肠杆菌科（肠杆菌），乳酸菌，芽孢杆菌和梭菌孢子的细菌的数量进行了枚举在粪肥和施肥和NPK施肥青贮作物。 通过Minitek系统（BBL）对肠杆菌进行生化表征。 农作物上90%以上的肠道细菌属于肠杆菌属。 其中大多数（72%）被确定为E agglomerans。 施肥并没有增加青贮作物上肠杆菌的数量。 大肠杆菌是粪肥中最常见的种类，但在施肥后一周，其数量是作物上肠杆菌总数的10（-3）倍。 在施用肥料的作物上，芽孢杆菌孢子的数量高出20 - 40倍，并且数量不随时间而下降，而梭状芽孢杆菌孢子、能够在44 ℃下生长的大肠杆菌和大肠杆菌减少了6，施肥和收获（7周）之间分别增加了40和20倍。机械收获增加了能够在44 ℃下生长的芽孢杆菌孢子和大肠杆菌的数量。氮磷钾化肥作物上的C可能是由于土壤污染。 肠杆菌和乳酸菌在萎蔫过程中增加。 枯萎作物上最具代表性的肠杆菌是一种特定的生物变种，可能是成团肠杆菌或水生拉恩氏菌。
The numbers of bacteria belonging to Enterobacteriaceae (enterobacteria), lactic acid bacteria, Bacillus- and Clostridium spores were enumerated in manure and on manured and NPK-fertilised silage crops. The enterobacteria were biochemically characterised by means of the Minitek system (BBL). More than 90% of the enterobacteria on crops belonged to the genus Enterobacter. A majority of these (72%) were identified as E agglomerans. Manuring did not increase the number of enterobacteria on silage crops. E coli was the most frequent species in manure but was present at 10(-3) times that of the total number of enterobacteria on the crop one week after manuring. The number of Bacillus spores was 20-40 times higher on manured crops and the number did not decline with time, whereas Clostridium spores, coliforms capable of growing at 44-degrees-C and E coli were reduced 6, 40 and 20 times respectively between manuring and harvesting (7 weeks).Mechanical harvesting increased the number of Bacillus spores and coliforms capable of growing at 44-degrees-C on NPK fertilised crops probably due to soil contamination. Enterobacteria and lactic acid bacteria increased during wilting. The most representative enterobacteria on wilted crops was a specific biovariant, possibly E agglomerans or Rahnella aquatilis.