烤煙高莖壯苗深栽結(jié)合一次性施肥對煙葉質(zhì)量和效益的影響
Effects of Deep-planting Large Sound Seedlings with One-time Fertilization on Flue-cured Tobacco Quality and Economic Returns
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摘要: 研究了烤煙高莖壯苗深栽結(jié)合一次性施肥技術(shù)對煙草生長及產(chǎn)質(zhì)量的影響,。結(jié)果表明,，與常規(guī)栽培相比，深移栽烤煙的根重,、主根根長,、須根數(shù)量、根系分布范圍,、煙葉產(chǎn)量,、產(chǎn)值分別增加了20%、37.2%,、25%,、66.2%、18.6%,、17.1%,，呈極顯著差異。上部葉片全氮,、煙堿含量分別降低了29%,、9.2%；應(yīng)用高莖壯苗7葉節(jié)深栽結(jié)合一次性施肥和減少氮肥施用量技術(shù)可節(jié)省用工量39.5個/hm2,，節(jié)省用肥量15%,。高莖壯苗7葉節(jié)深栽結(jié)合一次性施肥技術(shù)可以在保證煙葉產(chǎn)、質(zhì)量與現(xiàn)行技術(shù)方法基本一致的前提下,，達(dá)到優(yōu)質(zhì)烤煙生產(chǎn)節(jié)本增效的目的,。Abstract: Field experiments were conducted to investigate the effects of deep planting with one time fertilization technique on tobacco growth, yields, and quality in Guizhou Province. The results showed that root weight, length of tap root, amount of lateral root, root zone, leaf yield, and output value significantly increased by 20%, 37.2%, 25%, 66.2%, 18.6%, and 17.1%, respectively, the contents of total nitrogen and nicotine in upper leaves decreased by 29% and 9.2%, respectively. The application of this technique could save labor cost by 39.5 man days per ha and fertilizer usage by 15%, but maintained the yields and quality of tobacco leaves.
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