减施磷肥对烤烟产质量的影响研究

Effect of Reduction of Phosphate Fertilizer on Yield and Quality of Flue-cured Tobacco

在四川会理富磷植烟土壤上,设置4个处理开展减施磷肥试验。结果表明,减磷对烤烟生育期无显著影响,P 1处理不同程度地改善了2个时期烤烟的农艺性状;P 2处理和P 3处理上对烤烟农艺无不良影响;P 1处理对上部烟叶和下部烟叶的外观质量改善较为显著,P 2处理对各部位烟叶外观质量影响不显著,P 3处理对各部位烟叶外观质量均有不良影响。减施磷肥均降低了各部位烟叶的含梗率,降幅达2.77~3.57个百分点;从化学成分综合评价的结果来看,3个处理均略微提高了烟叶化学成分的综合得分,但均未达到显著水平;减施磷肥处理对烤烟的经济性状有一定的影响,其中P 2处理降低了烟叶的产值和中上等烟比例,P 3处理降低了烟叶所有的经济性状指标,P 1改善各项经济指标,但均未达显著水平。

Plant tobacco soil in sichuan huili rich phosphorus,phosphate reduction efficiency tests,set up four processing.The results showed that reducing phosphorus and increasing efficiency had no significant effect on the growth stage of flue-cured tobacco,and P 1 improved the agronomic traits of flue-cured tobacco in two stages to different degrees.P 2 and P 3 had no adverse effects on flue-cured tobacco agronomy.P 1 significantly improved the appearance quality of upper and lower tobacco leaves,while P 2 treatment had no significant effect on the appearance quality of all tobacco leaves,while P 3 treatment had adverse effects on the appearance quality of all tobacco leaves.The reduction and increase of phosphorus fertilizer reduced the stem percentage of all tobacco leaves by 2.77-3.57 percentage points.From the results of comprehensive evaluation of chemical composition,the three treatments all slightly improved the comprehensive score of chemical composition of tobacco leaves,but none of them reached the significant level.Phosphate fertilizer efficiency reducing processing had a certain influence on economic characters of flue-cured tobacco,the P 2 reduced the output value of tobacco leaf and the proportion of superior tobacco,P 3 phosphate reduced the economic indicators of all tobacco,P 1 improving economic indicators but did not reach significant level.