氮素調(diào)理劑對(duì)煙葉質(zhì)量及土壤速效氮的影響
The Effect of Nitrogen Regulators on Tobacco Leaf and Soil Available Nitrogen
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摘要: 研究了土壤氮素調(diào)理劑對(duì)土壤速效氮含量的影響,。室內(nèi)試驗(yàn)結(jié)果表明,施用土壤氮素調(diào)理劑能夠顯著降低土壤速效氮含量,施用調(diào)理劑25d后土壤速效氮含量最低降到19.81 mg/kg,。田間試驗(yàn)結(jié)果表明,打頂后施用土壤氮素調(diào)理劑,可以有效降低中上部煙葉煙堿含量,提高產(chǎn)值和中上等煙的比例,改善原煙的外觀質(zhì)量和內(nèi)在品質(zhì),。施用量以1500kg/hm2+微生物Ⅱ?yàn)橐恕?Abstract: This study investigated the effect of soil nitrogen regulator on soil available nitrogen. The lab test results showed that application of soil nitrogen regulator decreased soil available nitrogen content significantly, which decreased19.81 mg/kg25 days after application. Field experiment indicated that nitrogen regulator applied after topping could decrease dramatically alkaloid content, increase yield output and ratio of middle-upper class, and improve leaf appearance and quality. The best result was observed on treatment with 1500kg/ha+microorganismII.
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