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1、南方農(nóng)業(yè)學(xué)報(bào)jOURNALOFSOUTHERNAGRICULTURE2012+4317):986—990ISSN2095一t19l;CODENNNXAABhttp·ih口-ⅢnfnyxbcmD01:103969/j:issn.2095—1191.2012.07986氮鉀配比對(duì)烤煙K326產(chǎn)量與產(chǎn)值的影響李桂湘,韋建玉+,金亞波,曾祥難,鄧賓玲(廠西中煙工業(yè)公司.南寧530001)摘要:【目的】研究不同氮鉀肥單效益與交互作用對(duì)烤煙產(chǎn)量、產(chǎn)值的影響,尋求最佳配比組合。【方法】采用}E『間小區(qū)試驗(yàn),i殳低氮(45kg/ha)、中氮(90kg/ha)和高氮(135kgma)3個(gè)氮水平與低鉀(
2、180kgha)、中鉀(270kg/ha)和高鉀(360k#ha)3個(gè)鉀水平,共9個(gè)處理組合,研究氮鉀配比對(duì)烤煙產(chǎn)量、產(chǎn)值的影響。運(yùn)用SAS統(tǒng)汁分析軟件對(duì)試驗(yàn)結(jié)果進(jìn)行回歸分析,建立回歸模型,并根據(jù)產(chǎn)量、產(chǎn)值結(jié)果結(jié)合QBASCE程序進(jìn)行優(yōu)化尋優(yōu)?!窘Y(jié)果】氨、鉀肥均能增加烤煙的產(chǎn)量.但氮肥的增產(chǎn)效應(yīng)大于鉀肥;需要適量的氮和較高水平的鉀,才有利于煙葉產(chǎn)值的提高。最高產(chǎn)量方案施肥量為:fi2.5k跏aN、360kg,}LaK:O,煙葉產(chǎn)量為218595kg/ha。最高產(chǎn)值方案施肥量為:108kghaN、360k加aK:0,煙葉產(chǎn)值為2339415JiTha。【結(jié)論】建立的氮鉀用量對(duì)煙葉產(chǎn)量、
3、產(chǎn)值影響的回歸模型可為相近類型土壤種植煙葉參考。最佳方粟施肥量為108kgthaH、360k曲aK20。關(guān)鍵詞:烤煙;K326氮肥;鉀肥;產(chǎn)量;產(chǎn)值;尋優(yōu)中圖分類號(hào):$572.062文獻(xiàn)標(biāo)志碼:A文章編號(hào):2095—1191(2012)07—0986—05Yieldandoutputvalueofflue-curedtobaccoK326undervariousratioofNtoKLIGut—xiang,WEIJian—yu+,JINYa—bo,ZENGXiang~nan,DENGBin—ling(Guangxi’tobaccoIndustrialCorporation,Nanni
4、ng530001,China)Abstract:IObjective]]mpactsofsingleef
5、ectandinteractioneffectofNa.dKfertillzersOnvieldand。utputvalueofflue—curedtobaccosveFestudiedtofindoutthebe吐combinatmnoftwofeltilizers【Method]NinetreatmeatscoInposedof3Nlevels(45,90,135kCha)and3Klevels(180,270,360kCha)weredesignedtostudydiffe
6、rentratioofNtoKOnyiehlandOtltputvalueofflue—curedtobaccoFolIowingregressionanalysisbySAS8tatlsti<-alanalvsissoft.1eg聰ssionmodelswereestablishedandtheresultsofyieldandproductionvoluewereprocessedhyQBASCE.【ResuhlBothNandKfertilizersboostedtheyieldofflue—curedtobacco.Nkrfilizershowedbiggeryieldinc
7、reasingeriectthanKfertilizerCemhiningmmterateNandhighlevelKWaSfavorableforincreasingoutputvalueoffhle州redmhacCOThe㈣mbiill。gNandKfertilizerformulaofhighestyiehtwasll25kg/haNand360kg/haK20,th6yieldoftobaccoleavesreached2185.95kCha.ThecombiningNandKfertilizerfommlaofhighest011tputvalueoftobaccolea
8、v㈣as108kg/haNand360kg/haK20,thehighestoutputreached2339415RMBYua叫1a【Conclusion】Regressionmodelregardingtheeffect8ofratioofNmKontheyieldandoutputvalueoftobacco]eavescouldprovidenfe㈣-esfortobaccoplantinginsirallarsoil.Theopti—mdfert