摘要
为筛选适合湘西烟区的酸性土壤改良剂,采用大田试验研究了不同改良剂对植烟土壤理化特性和酸度特征,以及烤烟生长、经济性状和品质的影响。结果表明,施用酸性土壤改良剂可提高土壤碱解氮和速效磷含量,但降低了土壤速效钾含量;可提高植烟土壤pH至适宜水平,增加土壤交换性盐基和阳离子交换量,降低水解性酸和潜性酸、交换性铝含量;虽减缓了烤烟前期生长,但可提高上等烟比例18.67%~26.58%、烟叶产量3.70%~7.51%、烟叶产值0.63%~6.29%,改善烟叶物理特性和化学成分,增加烟叶评吸总分2.83%~7.08%。对湘西烟区强酸性植烟土壤的改良以施用石灰效果较好。
In order to screen the strong acid soil amendments suitable for the Xiangxi tobacco growing areas,a field experiment was conducted to study the effects of different soil amendments on physicochemical properties and acidity of the tobacco planting soil,and on the growth,economic characteristics,quality of flue-cured tobacco.The results were as follows:The application of acidic soil amendments can increase the contents of hydrolytic nitrogen and available phosphorus,but reduce the availability of potassium.It can increase the pH of tobacco-planting soils to an appropriate level,and increase the exchangeable base and cation exchangeable capacity of tobacco-planting soils,and reduce the content of hydrolyzable acid and potential acid and exchangeable Al 3+.Although the early growth of flue-cured tobacco was slowed down,the proportion of high quality tobacco was increased by 18.67%to 26.58%.The yield of tobacco leaf was increased by 3.70%to 7.51%.The output value of tobacco leaf was increased by 0.63%to 6.29%.It can improve the physical properties and chemical composition of the leaves,and the total sensory score of tobacco was improved 2.83%-7.08%.In Xiangxi tobacco areas,the effect of lime application on improving the strong acid soil of plant-tobacco was better.
作者
邓小华
张龙辉
陈金
周米良
田峰
张明发
李源环
张瑶
DENG Xiaohua;ZHANG Longhui;CHEN Jin;ZHOU Miliang;TIAN Feng;ZHANG Mingfa;LI Yuanhuan;ZHANG Yao(College of Agronomy,Hunan Agricultural University,Changsha 410128,China;Xiangxi Autonomous Prefecture Tobacco Company of Hunan Province,Jishou 416000,Hunan,China)
出处
《中国烟草科学》
CSCD
北大核心
2018年第6期14-20,共7页
Chinese Tobacco Science
基金
湖南省烟草专卖局科技项目"湘西烟区土壤pH变化机制及调控技术研究与应用"(xx15-18Aa01)
关键词
土壤改良剂
土壤理化性状
烤烟生长
品质
soil amendments
soil physicochemical properties
growth of flue-cured tobacco
quality