摘要
通过连续2年的盆栽试验,研究了镁(Mg)、氯(Cl)和硼(B)单施、互作及施肥后效对烤烟(云烟87)农艺性状和经济性状的影响。结果表明,单施B显著增加烤烟的产值,且效果能维持到第2年;单施Mg也有积极的效果;单施Cl对烤烟经济产值无显著影响,是否施Cl要依据土壤中Cl含量和元素互作等因素而定。Mg与Cl按1︰1.51配施对烤烟生长有促进作用,特别在施肥当季作用明显,显著增大中部叶片的长×宽,提高了烤烟产值;Mg与B按1︰0.08配施后效促进了烤烟生长,显著提高了烤烟产值。相比之下,Cl与B按1︰0.05配合施用在施肥当季对烤烟生长有抑制作用,但后效显著增大了上部叶片长×宽,有所提高产值,对烤烟生长表现出一定的促进作用。Mg、Cl与B为按1︰1.51︰0.08结合施用在施肥当季较Cl与B配施及CK表现出一定的促进作用。总之,合理的烤烟施肥措施应考虑营养元素的类型、配施比例、互作及后效。
Current and residual effects of Mg, C1 and B and their interactions on flue-cured tobacco agronomic characteristics and economic characteristics were investigated through two years＇ pot experiment. The results showed that B applied-alone increased tobacco output value significantly than Mg or C1 applied-alone, and the effect could be extended to the following year. Mg applied-alone also had positive effects. Both current and residual effects of C1 applied-alone on output value were not significant, whether applied C1 should be decided on soil C1 content and element interactions. 1 ： 1.51 was optimal ratio for Mg and C1, which could promote tobacco growth especially in the current year and stimulated significantly the growth of middle leaves （length ~ width） and output value. Mg and B applied-together on the ration of 1 ： 0.08 had positive residual effects and it increased significantly tobacco output value. C1 and B applied-together on the ration of 1 ： 0.05 restrained tobacco growth in current year, but significantly increased the tobacco upper leaves length ~ width in the after-year, and increased tobacco growth, output value to some extent. In conclusion, reasonable fertilization should consider nutrient type, composite ratio, the interactions and residual effects.
出处
《土壤》
CAS
CSCD
北大核心
2013年第2期257-263,共7页
Soils
基金
安徽省烟草专卖局(公司)科研基金项目(AHKJ2009-02)资助
关键词
施肥
交互作用
后效
烤烟生长
产值
Fertilization, Interaction, Residual effect, Flue-cured tobacco growth, Output value
