多功能调理剂在福建植烟土壤上的应用效果

Effects of Different Soil Conditioners on Soil pH and Tobacco Growth in Fujian Province

为了考察多功能土壤调理剂(ST和MT)对酸性植烟土壤的调理效果,在田间试验条件下,以不施调理剂和当地调理措施(白云石粉)为对照,对比研究了不同调理剂对土壤pH和烤烟产质量的影响。结果表明,与不施调理剂处理相比,施用调理剂处理烤烟根系周围土壤pH提高0.5~1.5;烤烟产量和上等烟叶比例随土壤pH(4.9~6.6)的提高而增加,烟叶产量和产值分别增加4.0%~9.0%和6.0%~14.7%,上等烟叶比例提高1.5%~12.9%。与白云石粉处理相比,等量施用多功能调理剂MT处理上等烟叶比例提高11.2%,经济效益增加1 485.7元/hm^2;减半施用多功能调理剂处理(白云石粉用量的50%)仍可以达到与白云石粉相当的调理效果。可见,多功能土壤调理剂具有较好的调理效果。

Soil acidification is getting worse under long-term fertilization.In this study,a field experiment was conducted to investigate the effects of different soil conditioners on soil pH and tobacco growth in Fujian Province.No conditioner,local countermeasure(dolomite powder)were considered as controls.Multi-functional soil conditioners ST and MT were applied with half and the same amount as dolomite powder.The results showed that compared to the treatment of no conditioner,the conditioners significantly increased rhizosphere soil pH by0.5-1.5units,increased the ratio of high quality tobacco leaves by1.5%-12.9%,and significantly increased the yield and output value by4.0%-9.0%and by6.0%-14.7%,respectively.Compared to dolomite powder,under the same applied amount,the treatments of multi-functional soil conditioners MT significantly increased the ratio for high quality tobacco leaves and the economic benefit by11.2%and by1485.7Yuan/ha,respectively.Additionally,multi-functional soil conditioners applied with half amount of dolomite powder showed the equivalent conditioning effects with dolomite powder.These results suggested that the multi-functional soil conditioners have positive effects on soil pH and tobacco growth,thus,could be recommended to be used in tobacco production.