文章摘要
张宏旺 1 ,张得平 2,陈慧珠 1 ,石保峰 2,贾海江 3,首安发 2,唐新莲 1 ,鲁  婷 1 ,沈方科 1.磷硫交互作用对烤烟富硒的影响[J].广东农业科学,2019,46(4):42-50
磷硫交互作用对烤烟富硒的影响
Effects of Sulfur and Phosphorus Interaction on Selenium Enrichment in Flue-cured Tobacco
  
DOI:10.16768/j.issn.1004-874X.2019.04.007
中文关键词: 烤烟        生育期
英文关键词: flue-cured tobacco  phosphorus  sulphur  selenium  growth period
基金项目:广西自治区科技厅广西重点研发计划项目(桂科 AB16380160);广西中烟工业有限责任公司项目“真 龙卷烟生态富硒特色烟叶生产关键技术研究与应用”
作者单位
张宏旺 1 ,张得平 2,陈慧珠 1 ,石保峰 2,贾海江 3,首安发 2,唐新莲 1 ,鲁  婷 1 ,沈方科 1 1. 广西大学农学院 / 植物科学国家级实验教学示范中心(广西大学)广西 南宁 530005 2. 广西壮族自治区烟草公司贺州市公司广西 贺州 542899 3. 广西中烟工业有限责任公司广西 南宁 530001 
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中文摘要:
      【目的】探明施用不同的硫、磷水平对烤烟烟叶硒含量变化的影响。【方法】以云烟 205 为材料, 采用二元回归饱和 D- 最优设计试验方案,测定了烤烟烟叶及地下部硒含量、土壤 pH、地上部生物量。【结果】 旺长期时,施加 KH2PO4 4.33 g/kg、(NH4)2SO4 1.45 g/kg,对烤烟旺长期的硒的吸收量是处于协同作用的,其他 处理中硫磷营养对烤烟富硒的效应是拮抗作用。而对于成熟期,施加 KH2PO4 8.65 g/kg、(NH4)2SO4 5.81 g/kg, 对烤烟成熟期的硒的吸收量是协同作用,而施加 KH2PO4 分别为 15.39、6.8、10.73、7.69 g/kg,(NH4)2SO4 分别 为 0、3.62、8.33、4.17 g/kg 时,硫磷营养对烤烟富硒的效应为协同作用。两个时期烤烟地下部的硒含量没有明显 差异;而地上部硒含量相比,成熟期的烟叶硒含量要比旺长期的高。另外,单施磷营养比单施硫营养的烤烟有更 高的富硒促进效应。【结论】磷硫交互作用对烤烟富硒的影响因烤烟的生育期及不同器官而异。在实验设计的磷 硫用量范围类,磷硫交互作用对烤烟的硒含量增加为正效应。
英文摘要:
      【Objective】The research was conducted to identify the effects of different application amounts of sulphur and phosphorus on the change of selenium content in flue-cured tobacco leaves.【Method】Taking a tobacco(Nicotiana tabacum L.) cultivar‘Yunyuan 205’as tested material, binary regression saturated D-optimal design experiment was conducted to study the selenium content in flue-cured tobacco leaves and the under-ground part, pH values and the aboveground biomass. 【Result】At the vigorous growth period, the application of KH2PO4 (4.33 g/kg) and (NH4)2SO4 (1.45 g/kg) had synergistic effect on the selenium absorption of flue-cured tobacco. While the sulphur and phosphorus nutrition in other treatments had antagonistic effect on selenium absorption. At the mature period, the application KH2PO4 (8.65 g/kg) and (NH4)2SO4 (5.81 g/kg) had synergistic effect on the selenium absorption of flue-cured tobacco. With the application amount of 15.39, 6.8, 10.73, 7.69 g/kg KH2PO4 and 0, 3.62, 8.33, 4.17 g/kg (NH4)2SO4, the sulphur and phosphorus nutrition had synergistic effect on the selenium absorption of flue-cured tobacco. There was no significant difference in selenium content in the underground part of flue-cured tobacco in two periods. For the above-ground part, the selenium content in flue-cured tabacco leaves in mature period was higher than that in vigorous growth period.Moreover, compared with single application of sulphur, single application of phosphorus fertilizer had higher selenium enrichment in flue-cured tobacco.【Conclusion】The effects of phosphorus and sulfur interaction on selenium enrichment of flue-cured tobacco varied due to the growth period and different organs of flue-cured tobacco. In the designed application amount of phosphorus and sulfur, the interaction of phosphorus and sulfur showed a positive effect on the increase of selenium content of flue-cured tobacco.
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