摘要
通过田间调查取样的方法系统研究了不同种植年限(1~5、6~10、11~15、16~20年)对石羊河流域凉州区日光温室土壤肥力质量的影响。结果表明,长期日光温室栽培虽显著降低了pH,但土壤可溶性盐含量显著增加,土壤pH和可溶性盐含量呈负相关,土壤pH增加一个单位,土壤可溶性盐含量降低1.35 g/kg。长期日光温室栽培较露地显著增加了土壤有机质、碱解氮、有效磷和速效钾的含量,日光温室土壤有效磷、碱解氮和速效钾平均含量分别为353.67、208.44和627.33 mg/kg,分别是露地土壤的21.42、1.85和5.54倍,但4个种植年限间土壤的pH及可溶性盐、有机质、速效氮磷钾含量差异不显著。温室种植1~5年,土壤有机质、碱解氮、有效磷和速效钾的含量迅速增加,5年后随着种植年限延长其含量趋于稳定,这可能是温室增肥不增产的主要原因。
The effects of different planting years(1~5,6~10,11~15,16~20 years)on soil fertility quality of solar greenhouse in Liangzhou district of Shiyang river basin were systematically studied by the method of field sampling.The results indicated that the long-term cultivation of greenhouse significantly reduced the soil pH,and significantly increased the soluble salt content in soil.Soil pH and soluble salt content were negative by related,soil soluble salt content reduced 1.35 g/kg when soil pH increased by 1.The long-term planting of the greenhouse had significantly increased the contents of soil organic matter,available N,available P and available K.The average contents of available P,available N and available K were 353.67,208.44 and 627.33 mg/kg respectively,which were 21.42,1.85 and 5.54 times of those in open soil.The differences in the pH,soluble salt,organic matter and available N,P,K content of soil among different planting years were not significant.During the 1~5 years of greenhouse cultivation,and the contents of soil organic matter,available N,available P and available K have increased rapidly,the contents tend to stabilize with the extension of the planting period after 5 years,which may be the main reason why the yield does not increase with increased fertilizer application in greenhouse production.
作者
赵天鑫
俄胜哲
王玉忠
袁金华
姚佳璇
王钰轩
ZHAO Tian-xin;E Sheng-zhe;WANG Yu-zhong;YUAN Jin-hua;YAO Jia-xuan;WANG Yu-xuan(College of Resources and Environment,Gansu Agricultural University,Lanzhou Gansu 730070;Institute of Soil and Fertilizer and Save Water Agriculture,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070;Extension Center of Wuwei Agricultural Technology,Wuwei Gansu 733000)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2021年第6期42-47,共6页
Soil and Fertilizer Sciences in China
基金
甘肃省重点研发计划项目(20YF3FG046)
兰州市人才创新项目(2016-RC-112)
临泽县凹凸棒石产业开发开放课题(LZKFKT-1804)。
关键词
种植年限
日光温室
土壤肥力质量
planting years
solar greenhouse
quality of soil fertility
