微生物肥料对不同节肥水平下烤烟生长与产质的影响

通过大田随机区组试验研究了10%、20%、30%节肥水平下两种微生物肥料对烤烟生长及产质的影响。结果表明:(1)在团棵期和旺长期,烤烟的农艺性状随着减肥量的增加而降低,在30%节肥水平时,降低较为明显,对烤烟生长的影响较大。到成熟期,金农肥中肥各节肥水平对烤烟的农艺性状均有不同程度的提升,德根贝在10%节肥水平时,烤烟的农艺性状有提升,在20%和30%节肥水平时分别降低10.4%、4.9%。(2)烤烟在3种节肥水平下其经济性状与对照均无显著差异,但不同节肥水平之间存在差异。两种微生物肥料均在20%节肥水平时,烤烟经济性状表现最好。金农肥中肥效果较为明显,显著提高了烤烟上等烟比例、中上等烟比例及均价,且烤烟产值比对照、10%节肥水平、30%节肥水平分别增加12.5%、34.5%、28.2%。

Effects of Microbial Fertilizer Application in the Different Fertilizer-saving Levels on the growth and products of Flue-cured Tobacco

The field experiment was conducted to study effects of microbial fertilizer on the growth and quality of fluecured tobacco in three different chemical fertilizer-saving levels of 10%,20%,and 30%saving level and two kinds of microbial fertilizers were selected in the experiment.Results indicated that：（1）In the rosette stage and the flourishing stage,agronomic traits of flue-cured tobacco overall situation decreased as the amount of chemical fertilizer reduction became larger,while 30%reducing level decreased significantly and had a bigger influence on the growth of flue-cured tobacco.In the mature period,increase in different degrees of agronomic traits of flue-cured tobacco were observed from Jinnong Number One application in the all three reduction levels,while Degenbei application only in the 10%reduction level with the others decreased by 10.4%and 4.9%,respectively.（2）Flue-cured tobacco under three chemical fertilizer-saving levels had no significant difference in economic characters from the control,but were there between different chemical fertilizer levels.Both microbial fertilizers under 20%reduction level got the best result of economic characters of fluecured tobacco.Jinnong Number One performed better,which significantly increased the proportion of tobacco,the proportion of superior and secondary of tobacco and the average price,and the output value increased at control,10%,and 30%reduction levels by 12.5%,34.5%,and 12.5%,respectively.