摘要
为了研究寿光不同棚龄设施果菜类蔬菜耕层土壤养分积累状况,选择当地有代表性的不同棚龄的日光温室25个,用“S”型采样法,采集0~20cm土壤样品进行分析化验。结果表明,寿光设施栽培土壤pH值逐年降低,并与棚龄呈弱的负相关性,相关系数r=-0.37458,表明寿光棚室耕层土壤有酸化的趋势。土壤EC值、土壤有机质、土壤速效磷和速效钾含量都随种植年限的增加逐年增高,并与棚龄呈较显著的相关性,其相关系数分别为0.520454、0.644182、0.574865、0.629884。连续种植10a,土壤有机质平均含量由1.57%增加到3.22%,速效磷平均含量由216mg·kg-1增加到418mg·kg-1,速效钾含量平均由448mg·kg-1增加到1128mg·kg-1。总的来看,随种植年限增长,设施蔬菜土壤养分含量呈不断增加趋势,养分富集十分明显,土壤中盐分含量逐年增加,可能对蔬菜生产形成潜在不良影响。
In order to clarify topsoil nutrient accumulation in different ages of greenhouse fruit vegetable in Shouguang county of Shandong, 0-20 cm soil samples from 25 representative and different ages of greenhouses were conducted using a S-sampling. The results indicated that the facilities topsoil pH value decreased year by year and showed significant negative correlation with the greenhouse age, the correlation coefficients was -0.374 58,and the soil acidification trend was obvious. Soil EC value, soil organic matter, available phosphorus and available potassium contents increased with the increasing of greenhouse age, which were found extremely significant correlation with the age of greenhouse, and the correlation coefficients were 0.520 454, 0.644 182, 0.574 865 and 0.629 884, respectively. In the greenhouses which had been used to cultivate for 10 years, the organic matter increased from 1.57% to 3.22%, available phosphorus increased from 216 mg·kg-1 to 418 mg·kg-1, available potassium increased from 448 mg·kg-1 to 1 128 mg·kg-1. Overall, soil nutrient content in facility vegetable soil increased continuously, and the accumulation of nutrient was obvious, the soil soluble salts was increased with the increasing of greenhouse age, and there was a potential adverse effect on vegetable production.
作者
祝海燕
李婷婷
ZHU Haiyan;LI Tingting(Facility Horticulture Laboratory of Universities in Shandong / Weifang University of Science & Technology,Shouguang 262700,Shandong,China)
出处
《中国瓜菜》
CAS
北大核心
2019年第5期45-49,共5页
China Cucurbits And Vegetables
基金
寿光市应用技术研究与开发计划项目(2017JH05)
山东省高校设施园艺试验室资助项目(2018YY032)
关键词
耕层土壤
养分积累
棚龄
寿光
Topsoil
Nutrient accumulation
The age of greenhouse
Shouguang
