【摘要】 以咖啡壳沤制物、腐殖土及森林土为原料配制成不同基质,通过对基质的容重、总孔隙度、碱解N、速效P、速效K、有机质、pH值及EC值8个理化性状测定及成苗率观测,分析其理化性状及其对长蕊甜菜成苗率的影响。结果表明,在以咖啡壳沤制物、腐殖土和森林土配制的苗木培育基质中,以不同物料或占比不同的相同物料所配制的育苗基质间,其物理性状及出苗率大多数存在显著(P<0.05)或极显著的差异(P<0.01),化学性状则存在一定差异性。不同基质的大多数理化性状间存在显著或极显著的相关关系,成苗率的高低是基质理化性状综合作用的结果,而非单一性状的影响所致。以咖啡壳沤制物(70%咖啡壳+15%牛粪+15%锯末)︰腐殖土为70%︰30%配制的1~#基质及以咖啡壳沤制物(65%咖啡壳+20%牛粪+15%锯末)︰腐殖土为70%︰30%配制的2~#基质适宜用作长蕊甜菜的苗木培育基质,其出苗率达90%-96%。更多还原

【Abstract】 Based on different growing media prepared with coffee husk compost,forest humus and forest soil,8 physical-chemical properties of the tested growing media including bulk weight,total porosity,available nitrogen,rapid available phosphorus,rapid available potassium,organic matter,pH and EC were examined,and the effects of these growing media on seedling emergency rate of Melientha longistaminea were examined.The results showed that the physical properties of different growing media were significantly different(P<0.05 or P<0.01),same results for emergence rate,and some differences were found on chemical properties.Most of the physical-chemical properties were significantly or extreme significantly correlated.Rapid available phosphorus was not significantly correlated with other properties,EC was mainly affected by the content of organic matter.The emergence rate was the integrated results of all the physical-chemical properties,instead of a certain index.Two formula of growing media,the No.1,which consisted with 70% of coffee husk compost and(coffee husk,cow dung and saw dust of 70%,15% and 15% respectively)30% of forest humus,and the No.2,which consisted with 70% of coffee husk compost and(coffee husk,cow dung and saw dust of 65%,20% and 15% respectively) 30% of forest humus,could be used as the growing media of Melientha longistaminea,and the seedling emergency rate could achieve 90% to 96%.更多还原