巴東縣野三關(guān)基地單元植煙土壤養(yǎng)分狀況及施肥策略

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1、巴東縣野三關(guān)基地單元植煙土壤養(yǎng)分狀況及施肥策略摘要：通過采集和分析1496個(gè)巴東縣野三關(guān)基地單元基本煙田土壤樣品，綜合評價(jià)其主要養(yǎng)分豐缺狀況，并提出合理的施肥建議。結(jié)果表明，野三關(guān)基地單元土壤pH適宜優(yōu)質(zhì)煙葉生產(chǎn)的樣品比例為54.88%，92.45%樣品有機(jī)質(zhì)含量在優(yōu)質(zhì)煙葉生產(chǎn)適宜標(biāo)準(zhǔn)或以上；該煙區(qū)土壤全氮、全磷和全鉀含量均較適宜于優(yōu)質(zhì)煙葉生產(chǎn)，而且8.14%樣品的土壤全氮、4.65%樣品的全鉀和近44.00%樣品的土壤全磷含量高于標(biāo)準(zhǔn)；該基地單元69.85%的土壤樣品堿解氮較適宜，57.95%的土壤樣品速效磷含量適宜，但仍有近36.00%的土壤樣品速效磷含

2、量偏低或缺乏，59.23%土壤樣品速效鉀較適宜，但仍有近21.00%土壤速效鉀含量偏低。針對野三關(guān)煙區(qū)植煙土壤養(yǎng)分狀況，提出“控氮、增磷、補(bǔ)鉀”的施肥策略，同時(shí)可以通過翻壓綠肥等措施來降低土壤對磷的吸附固定作用，提高磷肥的利用率，并施用生石灰等可以調(diào)節(jié)土壤的pH至適宜范圍。關(guān)鍵詞：植煙土壤；養(yǎng)分狀況；施肥策略；巴東縣中圖分類號(hào)：S572.061文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：0439-8114（2014）17-4036-04TheStatusofSoilFertilityandFertilization13StrategyinYeSanguangTobacco-gr

3、owingAreasofBadongCountyFENGFan-wen1，SUHua-yi2，ZOUYong3，HEPeng3，TUOSheng-hui1，HUANGXue-jie1，XUDing-sheng1LIWei1，HUANGJing1，ZHOUJian-qian4（1.EnshiTobaccoCorporation，Enshi445000，Hubei，China2.SoilFertilizerWorkstationofBadong，Badong444300，Hubei，China；3.ShenzhenTobaccoIndustrialCo.，Ltd

4、.，Shenzhen518109，Guangdong，China；4.BijieFlue-CuredTobaccoFactoryofGuizhouTobaccoRedryingIndustrialCo.，Ltd.，Bijie551700，Guizhou，China）Abstract：The1496soilsamplesfromYesanguangbaseunitofBadongcountywereanalysed.Themainnutrientstatuswasevaluatedsynthetically.Advicesonreasonablefertili

5、zationwerewereputforward.TheresultsshowedthatthepHvalueof54.88%soilsamplesinYesanguanbaseunitwassuitableforhighqualitytobacco.Theorganicmattercontentof92.45%soilsampleswassuitable13oratthehighlevel.ThecontentsoftotalN，totalPandtotalKinthetobaccoareaweresuitableforhighqualitytobacco

6、.TotalNof4.65%samples，totalKof8.14%samplesandtotalPofnearly44%sampleswerehigh.ThesoilavailableNof69.85%sampleswasmoreappropriate.ThesoilavailablePcontentof57.95%sampleswassuitable，butavailablePcontent36%sampleswaslowordeficient.ThesoilavailableKcontentof59.23%sampleswassuitable，but

7、stillavailableKcontentof21%sampleswerelow.Accordingtothesoilnutrientstatus，itisrecommendedtocontrolN，supplyP，increaseK，reducetheadsorptionandimmobilizephosphorusbygreenmanureandothermeasures，improvetheutilizationefficiencyofP，andrugulatepHtotheproperrangebyusingquicklimeetc.Keyword

8、s：tobacco-growingareas；nut