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作 者:梁军[1] 丁明明[1] 贾秀贞[1] 吕全[1] 张星耀[1]
机构地区:[1]中国林业科学研究院森林生态与环境保护研究所,北京100091
出 处:《林业科学研究》2004年第3期340-345,共6页Forest Research
基 金:国家自然科学基金项目(30271084)
摘 要:研究了3种细菌制剂、复合肥及其细菌制剂与复合肥的复合物对草坪草草地早熟禾生长及其抗寒性指标的效果。结果表明:3种细菌制剂及其复合制剂能大大提高草坪草的抗寒性,施用复合肥、菌剂或二者共同使用对草坪草抗寒性各指标都有不同程度的正向效果。单施菌剂的效果要优于单施复合肥的效果,而且菌种F,H在提高草坪草抗寒性的效果方面明显优于菌种E。复合肥与菌剂混合施用比单施菌剂或单施复合肥表现出了更好的综合抗寒效果。菌剂与复合肥在增强草坪草抗寒性方面对不同的指标表现出互补效应和不可替代效应同时存在。双因子的复合施用存在着一定的不完全叠加效果。具体的表现主要是:单独使用菌剂处理的草坪草电解质透出率与复合肥处理差异不明显;单独使用菌剂处理的草坪草可溶性糖含量、主根长优于复合肥处理;菌剂F、H处理的草坪草过氧化物酶活性、叶绿素含量、侧根数高于复合肥处理,但比菌剂与复合肥混合使用处理效果差。Three bacteria fertilizer (E,F,H),chemical tertilizer and the compound of bacteria fertilizer and chemical fertilizer were separately applied on Poa pratensis to inspect their effects to the growth and the cold resistance of turfgrass.The results indicated that bacteria fertilizer and the compound of bacteria fertilizer and chemical fertilizer could both improve cold resistance of turfgrass greatly.The applying of each kind of three fertilizers induced a different degree of positive effect.The effect induced by bacteria fertilizer was better than that of chemical fertilizer and the effect induced by bacteria F and H was better than that of bacteria E.Applying both bacteria fertilizer and chemical fertilizer showed a better effect on general cold resistance than that of applying bacteria fertilizer or chemical fertilizer solely.Study on applying bacteria fertilizer and chemical fertilizer showed a concurrence of the complementarity effect and the unreplacement effect to different indexes on cold resistance enhancement.The applying of both bacteria fertilizer and chemical fertilizer revealed a certain extent of incomplete adding status.The details included:The difference of electrolyte leakage of turfgrass was unsignificance between treating with bacteria fertilizer and treating with chemical fertilizer.But a better growing of taproot and a more contents of soluble sugar was showed in treating with bacteria fertilizer than treating with chemical fertilizer.The activity of peroxidase(POD),the contents of chlorophyll,and amount of fibre of turfgrass were higher in treat bacteria F and H than that of treating with chemical fertilizer,but the effect of treating with bacteria F and H was poor than that of treating with the mixture of bacteria fertilizer and chemical fertilizer.
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