生石灰修復(fù)酸性植煙土壤合理施用量研究

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開放科學(xué)（資源服務(wù)）標(biāo)識(shí)碼（OSID）：

Study on the Reasonable Application Amount of Quicklime for Amending Acidic Tobacco-planting Soil

YANGRui-weiGUXiang，SONGXing-yietal（EnshiTobaccoCompanyofHubeiProvincialTobacoCorporation，XianfengHubei ）

AbstractAstudyascoductedtoivestigatetereasoableaplicationmountofquicklieanditsefetohepreventionandctrolof tobaccorotandstediseasinaciictobacplantingsolsofentacidityvelsThesultssoedtatfostroglycidcil（p 4.0-4.5 ），the mean price and output value of tobacco leaves were the highest with the quicklime application of 1500kg/hm2 .For mildly acidic soils （ ），the highest mean price of tobacco leaves was achieved with the quicklime application of 1 125kg/hm2 .For slightly acidic soils （pH5.1-5.6） ，the highest yield，mean price，and output value of tobacco leaves were obtained with the quicklime application of 750kg/hm2 .The applicationof anappropriate amount of quicklime inacidic tobacco-planting soilscan promote the growth anddevelopmentoflueuredbaccoaethseasesistancefbaccondeducethideneadseaseidexofotdis ses.

Key wordsFlue-cured tobacco;Acidic soil;Quicklime;Application amount;Root and stem diseases

由于長期片面重視化學(xué)肥料，輪作不足，掠奪性用地現(xiàn)象嚴(yán)重，培肥地力措施缺乏，導(dǎo)致土壤環(huán)境惡化，土壤酸性增強(qiáng)[1-2]，煙草根莖部病害（主要有青枯病、黑脛病、根黑腐?。┢毡榘l(fā)生，嚴(yán)重影響產(chǎn)區(qū)煙葉產(chǎn)質(zhì)量[3-4]。（剩余6448字）