土壤肥力变化与棚龄的相关性研究  

Correlation Study on Variation of Soil Fertility in Different Ages of Greenhouses

作　　者：朱森林[1] 方勇[1] 

机构地区：[1]金华职业技术学院,浙江金华321007

出　　处：《江西农业学报》2011年第5期113-115,共3页Acta Agriculturae Jiangxi

基　　金：浙江省自然科学基金项目(Y307485);浙江省金华市科技局自然科学科研项目(2009-4-283)

摘　　要：对浙江金华市郊不同棚龄的设施土壤肥力变化的研究结果表明:大棚设施土壤有机质、速效氮和速效磷含量均随棚龄的增加而递增,均与棚龄呈显著正相关,其相关系数分别为0.9311、0.9517和0.9749。其中,土壤有机质积累明显,含量均已达极高水平;而设施栽培年限≥5年的土壤速效氮、磷含量基本处于中高水平;土壤速效钾含量也有一定程度的增加;但设施土壤pH值随棚龄增加而降低,两者之间呈显著的负相关,土壤酸化趋势较为明显。The variation of soil fertility in different ages of greenhouses in the suburb of Jinhua city,Zhejiang province was researched.The results showed that soil organic matter,available nitrogen and available phosphorus contents increased with the increase of greenhouse age,and their correlation coefficients were 0.9311,0.9517 and 0.9749 respectively(P<0.05).The accumulation of soil organic matter was significant,and the content of soil organic matter has reached a very high level.In the greenhouses which hav...

关 键 词：设施栽培 大棚年限 土壤肥力 相关性 

分 类 号：S625[农业科学—园艺学]