資源描述:
《廣東南雄煙區(qū)主要植煙土壤類型養(yǎng)分狀況分析》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、廣東農(nóng)業(yè)科學(xué)2014年第1期37廣東南雄煙區(qū)主要植煙土壤類型養(yǎng)分狀況分析王怡,陳建軍,李福君,羅靜f1.華南農(nóng)業(yè)大學(xué)農(nóng)學(xué)院,廣東廣州510642;2.廣東中煙工業(yè)責(zé)任有限公司,廣東廣州510145;3.廣東煙草南雄市有限公司,廣東南雄512400)摘要:為促進(jìn)南雄煙區(qū)濃香型特色優(yōu)質(zhì)煙葉的可持續(xù)發(fā)展,明確南雄煙區(qū)主要植煙土壤類型的養(yǎng)分狀況,對南雄煙區(qū)181個(gè)耕層土壤樣品的養(yǎng)分狀況進(jìn)行了分析。結(jié)果表明:南雄煙區(qū)植煙土壤pH值4.30~8.03,紫色土、牛肝土田、白沙泥田和麻沙泥田在適宜范圍內(nèi)的比例分別為49.46%、80%、35.78%和22.08%,紫色土相對偏高,
2、白沙泥田和麻沙泥田多數(shù)偏低;有機(jī)質(zhì)、全氮和堿解氮含量均以紫色土最低,最適宜氮素的調(diào)控,其余3種土壤類型均有部分樣品含量偏高,需注意控氮:全磷、全鉀含量多數(shù)為中等至豐富水平,僅白沙泥田和麻沙泥田部分樣品為缺乏水平;速效磷含量普遍適宜;速效鉀含量多數(shù)偏低,除絕大多數(shù)紫色土供鉀豐富外,其余3種土壤類型均有不同程度的缺鉀現(xiàn)象,生產(chǎn)中需補(bǔ)施鉀肥。關(guān)鍵詞:南雄煙區(qū):煙草;土壤類型:養(yǎng)分中圖分類號(hào):S158.3文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1004—874X(2014)01—0037—05Analysis0nnutrientstatusinthemaintypes0ftobacco-
3、l-‘●1●lT■n—l●plantingS0lIInJanxiong0IGuangOongPr0VlnCeWANGYi,CHENJian-jun,LIFu_jun,LUOJing(1.AgricuhuralCollege,SouthChinaAgricuhuralUniversity,Guangzhou510642,China;2.ChinaTobaccoGuangdongIndustira!Co.Ltd,Guangzhou510145,China;"3.NanxiongBranchofGuangdongTobaccoCompany,Nanxiong512400
4、,China)Abstract:181topsoilsamplesfromNanxiongtobaccogrowingareawerecollectedandanalyzedinordertounderstandsoilnutrientstatusandpromotethesustainabledevelopmentoffullaroma—typetobaccoinNanxiong.TheresultsshowedthattherangeofpHvaluewas4.30-8.03andtheproportionswithintherightscopeofpurpl
5、esoil,Oxliverfield,whitesandfield,hempsandfieldrespectivelywere49.46%,80%,35.78%and22.08%.ThepHvalueofpurplesoilwasrelativelyhigher,whilethoseofwhitesandfieldandhempsandfieldwererelativelylower.Contentoforganicmatter,totalNandavailableNwasverylowinpurplesoilwhichwasmostsuitableforNman
6、agement,whilethoseofotherthreesoiltypeswererelativelyhigher,theywereneededtocontrolN.ContentoftotalPandtotalKwasmostlymediumtorichbesidessamplesfromwhitesandfieldandhempsandfield.ContentofavailablePwassuitableinallsoiltypes.ContentofavailableKwasmostlylow.Exceptformostofpurplesoilwasr
7、ichinavailablel(’otherthreesoiltypesallhaddifferentlevelofpotassiumdeficiencyphenomenon,SOitwasneededtosupplypotassiuminpractice.Keywords:Nanxiong;tobacco;soiltype;nutrient南雄是全國濃香型煙葉四大生產(chǎn)基地之一,全市煙株吸收營養(yǎng)和水分的直接場所,其性質(zhì)和養(yǎng)分狀況烤煙種植面積6667hm,煙葉收購量達(dá)到1500萬kg,對煙葉質(zhì)量和風(fēng)格特色的影響尤為明顯。南雄煙區(qū)土種植面積、產(chǎn)量和收購量常年居廣東之首
8、。南雄煙葉