摘要
为明确减氮条件下不同土壤改良剂在黄淮烟区的应用效果,以代表性土壤黄棕壤为研究对象,设置常规施肥,减氮施肥,以及减氮增施松土促根剂、生物炭、黄腐酸有机肥3种土壤改良剂等处理,研究不同处理对烤烟病害发生情况、常规化学成分协调性、土壤物理性状以及土壤氮素的影响。结果表明:烤烟减氮施肥可增加烟草病害发生,增施土壤改良剂可显著降低烤烟花叶病、黑胫病和根黑腐病的发病率和病情指数,并且使烤后烟叶的化学成分更加协调;增施土壤改良剂也显著降低了土壤容重,增加了田间持水量,提高了土壤耕层全氮和硝态氮含量。因此,土壤改良剂可作为应用于黄淮烟区烤烟减氮生产的一条有效途径。
In order to determine the application effects of different soil amendments under nitrogen reduction in HuangHuai tobacco area, conventional fertilization, nitrogen reduction fertilization, and three soil amendments including nitrogen reduction + soil conditioner, nitrogen reduction + biochar and nitrogen reduction + fulvic acid organic fertilizer were set up in yellow brown soil, the effects of different treatments on flue-cured tobacco disease occurrence, coordination of conventional chemical components, soil physical properties and soil nitrogen were studied. The results showed that nitrogen reduction fertilization could increase the occurrence of tobacco diseases, and increased application of soil conditioner could significantly reduce the incidence and disease index of tobacco Mosaic, black shank and root black rot, and make the chemical components of cured tobacco more harmonious. Increased application of soil amendments also significantly reduced soil bulk density, increased field water holding capacity, and increased the contents of total nitrogen and nitrate nitrogen in surface soil. Therefore, soil conditioner can be used as an effective way to reduce nitrogen production of flue-cured tobacco in Huang-Huai tobacco area.
作者
陈晨
牛莉莉
刘园
胡艳芳
程玉渊
吴疆
尹光庭
刘流
李倩
孙善兴
张常兴
CHEN Chen;NIU Li-li;LIU Yuan;HU Yan-fang;CHENG Yu-yuan;WU Jiang;YIN Guang-ting;LIU Liu;LI Qian;SUN Shan-xing;ZHANG Chang-xing(Neixiang Branch of Nanyang Tobacco Company,Nanyang 474350,China;Nanyang Branch,Henan Tobacco Company,Nanyang 473000,China;China Tobacco Henan Industrial Co.,Ltd.,Zhengzhou 450016,China)
出处
《江西农业学报》
CAS
2022年第6期46-51,共6页
Acta Agriculturae Jiangxi
基金
中国烟草总公司重大科技项目“基于生物防治的黄淮烟区烟草有害生物综合治理技术集成与模式构建”(1102021051 LS-11)
河南省烟草公司南阳市公司创新项目“南阳烟区上部叶耐熟性提升和配套烘烤技术研究”(NYYCKJ201901)、“基地单元定制化生产管理模式探索与应用”(NYYCGL2020014)。
关键词
烤烟
土壤改良剂
病害
化学成分协调性
土壤理化性质
Flue-cured tobacco
Soil amendment
Disease
Chemical composition coordination
Soil physicochemical property
