本文選題：磷水平 + AM真菌　； 參考：《西南農(nóng)業(yè)學(xué)報(bào)》2017年06期

【摘要】：【目的】針對(duì)煤礦開(kāi)采造成土壤肥力下降,結(jié)構(gòu)破壞,尤其是土壤酶活性降低的嚴(yán)重問(wèn)題�！痉椒ā恳杂衩诪樗拗髦参�,以礦區(qū)廢棄地土壤為供試基質(zhì),通過(guò)不同磷水平(0,25,50,100 mg/kg)下接種不同AM真菌(G.e,G.m,G.i)的雙因素盆栽試驗(yàn),研究其對(duì)廢棄地土壤AM真菌孢子數(shù)及土壤酶活性的影響,旨在為礦區(qū)廢棄地土壤質(zhì)量改善篩選優(yōu)勢(shì)AM真菌種屬及施磷水平提供科學(xué)依據(jù)。【結(jié)果】接種處理土壤中均發(fā)現(xiàn)孢子,同一施磷水平AM真菌孢子數(shù)均呈G.eG.m≥G.i的變化趨勢(shì)。與不接種的對(duì)照處理相比,接種AM真菌可以提高土壤堿性磷酸酶,脲酶和蔗糖酶活性,其中土壤堿性磷酸酶活性以25 mg/kg磷水平接種G.e處理提高幅度最大,達(dá)29.9%;土壤脲酶活性以100 mg/kg磷水平接種G.e處理提高幅度最大,達(dá)29.8%;土壤蔗糖酶活性以0mg/kg磷水平接種G.i處理提高幅度最大,達(dá)12.5%�！窘Y(jié)論】接種AM真菌與施磷水平互作對(duì)土壤AM真菌孢子數(shù)及土壤脲酶活性具有極顯著影響,對(duì)土壤堿性磷酸酶及蔗糖酶活性無(wú)顯著影響。
[Abstract]:[objective] to solve the serious problems of soil fertility decline and structure destruction, especially the decrease of soil enzyme activity caused by coal mining. [methods] Maize was used as host plant and soil in mining wasteland as test substrate. The effects of different phosphorus levels on spore number and soil enzyme activity of AM fungi in abandoned land were studied by means of a pot experiment of inoculating different AM fungi G. eucalyptus G.mmG-1 / kg with different phosphorus levels at 50 mg 路kg ~ (-1) 路kg ~ (-1), respectively, in order to study their effects on the spore number and soil enzyme activity of AM fungi in abandoned soil. The purpose of this study was to provide scientific basis for improving soil quality and screening dominant AM fungi species and P application level. [results] spores were found in the soils treated with inoculation, and the spore number of AM fungi at the same P application level showed a trend of G.eG.m 鈮，

本文編號(hào)：1970292