南雄烟区生态条件分析.pdf

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1、2014．08，35(4)中国烟草科学ChineseTobaccoScience75南雄烟区生态条件分析谢晓斌，陈永明，王军，罗慧红(1．广东中烟工业有限责任公司，广州510145；2．广东省烟草南雄科学研究所，广东南雄512400)摘要：为了明确南雄烟区生态特征，收集了南雄烟区近25年有关气象资料，测定了南雄烟叶主产区300份土壤样品，系统分析了大田期气象条件及主要植烟土壤养分状况。结果表明，南雄烟区还苗期、伸根期气温偏低，降雨量偏多，日照时数偏少；旺长期气温、降雨量和日照时数较适宜；成熟期气温稍偏高，

2、降雨量明显偏多，日照时数较长。紫色土偏碱性，有机质、氮含量较低，磷、钾含量较高；牛肝土田偏酸性，有机质、氮、磷、钾含量均较高；沙泥田呈酸性，有机质、氮、磷含量较高，钾含量偏低。3种植烟土壤类型水溶性氯含量普遍偏低，有效硼、交换性锰和交换性镁含量均处于极缺乏的水平。南雄烟区生态条件总体较适宜，但也存在一定的限制性因子。关键词：南雄；烤烟；气候因素；土壤因素中图分类号：$572．05文章编号：1007．5l19(2014)04．0075．05DOI：10．13496／j．issn．1007．5119．2014

3、．04．014AnalysisonEcologicalConditionsinNanxiongTobacco—growingAreasXIEXiaobin，CHENYongming2WANGJun，LUOHuihong。，(1．ChinaTobaccoGuangdongIndustrialCo．，Ltd．，Guangzhuo510145，China；2．NanxiongTobaccoScienceResearchInstituteofGuangdongProvince，Nanxiong，Guangdong

4、512400，China)Abstract：InordertodefinetheecologicalcharacteristicsofNanxiongtobacco—growingareas，themeteorologicaldatafor25yearsinNanxiongtobacco—growingareaswerecollected，and300ofsoilsamplesfrommajortobacco—plantingareasinNanxiongwerecollected，andthemeteo

5、rologicalconditionsoftobaccofieldgrowingperiodandnutrientstatusofmaintobaccoplantingsoilwereanalyzed．Theresultsshowedthat，duringrootspreadingstage，temperaturewastoolow,andprecipitationwastoohigh，andsunshinehourswastoolowinNanxiongtobacco—growingareas．Thet

6、emperature，rainfallandsunshinehourswerefineduringfastgrowingperiod，butthesewereexcessiveduringmaturingstage．Thepurplesoilwasalkaline，withloworganicmatterandnitrogencontentsandhighphosphorusandpotassiumcontents．Thepurplepaddysoilwasslighflyacidic，withhigho

7、rganicmatter,nitrogen，phosphoras，andpotassiumcontents．Thesandsoilwasacidic，withhighorganicmate~nitrogenandphosphorusandlowpotassiumandwatersolublechloridecontents．Thecontentsofavailableboron，exchangeablemanganeseandexchangeablemagnesiumwereextremelydefici

8、entin3soils．TheecologicalconditionsofNanxiongtobacco-growingareasingeneralaresuitable，aRhoughtherearesomelimitingfactors．Keywords：Nanxiong；flue—curedtobacco；climatefactor；soilfactor烟草是一种对环境条件较为敏感的经济作物，烟区生态因素，李湘伟等对南平