深耕高起垄对烤烟生长及产质量的影响

Effects of Deep Tillage and High Ridging on the Growth,Yield and Quality of Flue-cured Tobacco

通过田间试验,研究深耕高起垄对烤烟生育期、农艺性状及产质量的影响。结果表明:深耕高起垄可明显延长烤烟大田生育期,影响烟株的植物学性状和生长势;深耕高起垄会使烟株农艺性状变差,但对病害发生程度无明显影响;深耕高起垄会降低烟株生长前期的干物质积累速率,但会加快生长后期的干物质积累速率;在2019—2020年度环境条件下,烤烟经济性状以自然耕层12 cm、垄高35 cm处理最好,原烟外观质量以深耕17 cm、垄高40 cm的处理最好。

Through field trial,the effects of deep tillage and high ridging on the growth period,agronomic traits,yield and quality of flue-cured tobacco were studied.The results showed that deep tillage and high ridging could significantly prolong the growth period of flue-cured tobacco in the field,and affect the botanical traits and growth potential of tobacco plants;deep tillage and high ridging could lead to poor agronomic traits of tobacco plants,but have no significant impact on the occurrence degree of disease;deep tillage and high ridging could reduce the dry matter accumulation rate of tobacco plants in the early growth stage,but could accelerate the dry matter accumulation rate in the later growth stage;under environmental conditions from 2019 to 2020,the treatment with a natural cultivation layer of 12 cm and a ridge height of 35 cm was the best for economic traits,the treatment with a deep cultivation layer of 17 cm and a ridge height of 40 cm was the best for the appearance quality of raw tobacco.