| 摘要: |
| 【目的】探索施肥途径增加生防放线菌数量的可行性。【方法】采用室内模拟试验，研究了自然和灭菌条件下，无机肥、有机肥、草木灰及腐植酸对土壤中接入生防放线菌Act11、 Act12数量的影响。【结果】①自然和灭菌条件下，加入的养分对土壤中接入生防放线菌繁殖数量均有一定的影响。②自然条件下，不同用量的有机肥、无机肥、腐殖酸和草木灰，对Act11和Act12数量的影响均达极显著水平（P＜0.01）。灭菌条件下，不同用量有机肥和无机肥对Act11和 Act12数量的影响均达极显著水平（P＜0.01），草木灰对Act11及腐殖酸对Act12数量的影响达极显著水平，其他处理差异无规律性。灭菌条件下生防放线菌数量远高于自然条件下。【结论】向土壤中施入有机肥，可明显促进接入放线菌在土壤中的生长繁殖，提高生防放线菌的防病促生效果。 |
| 关键词: 有机养分 无机养分 生防放线菌 繁殖数量 |
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| 基金项目:陕西省科技攻关项目(2004K02-G7)；国家“十一五”科技支撑计划项目（2006BAD05B07） |
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| Effect of organic and inorganic nutrients on the quantity of soil bio-control actinomycetes |
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| Abstract: |
| 【Objective】Thd study was done to explore the capability of increasing bio-control actinomycetes by the way of fertilizing.【Method】A simulated experiment was carried out to study the effect of inorganic nutrients,organic nutrients,plant ash and sodium humate on the quantity of inoculating bio-control actinomycetes in soil under unsterilized and sterilized conditions.【Result】①The results indicate that under unsterilized and sterilized conditions,the quantity of actinomycetes have certain change when adding nutrients to soil.②The variance analysis indicates that the quantities of 11th and 12th actinomycetes among organic treatment,inorgainc fertilizers,sodium humate treatment and plant ash treatment of different nutrient amount have significant difference under natural condition.Under sterilized conditions different amounts of organic and inorganic fertilizer have significant influence on 11th and 12th actinomycetes,so do plant ash on 11th actinomycetes,sodium humate on 12th actinomycetes.But the other treatments have no marked difference.【Conclusion】Organic fertilizer can promote the growth of inoculating bio-control actinomycetes significantly.In conclusion,we can improve the disease resistance of actinomycetes and cuhance their growth. |
| Key words: organic nutrient inorganic nutrient bio-control actinomycetes reproduction quantity |
