In order to provide reference for high quality tobacco producion,this experiment adopted a randomized block design in a field plot,and analyzed the effects of boron fertilizer on the growth,development on comprehensiv...In order to provide reference for high quality tobacco producion,this experiment adopted a randomized block design in a field plot,and analyzed the effects of boron fertilizer on the growth,development on comprehensive quality of flue-cured tobacco by using mathematical statistics methods such as multiple comparison with NC297 as test material.The results showed that:spraying boron fertilizer on flue-cured tobacco leaves can promote the growth of flue-cured tobacco NC297 to a certain extent,effectively reduce the total particulate matter and tar content of tobacco,and play a positive role in regulating the total sugar,reducing sugar,nicotine and potassium content of flue-cured tobacco;the comprehensive quality of NC297 was the best when boron was applied at medium potassium level(K2B1).展开更多
[目的]测量新型国产人工颈椎间盘假体在山羊颈椎的活动度。[方法]12只山羊随机分为3组,每组4只,包括羟基磷灰石(hydroxyapatite,HA)涂层的间盘假体组,非HA涂层的间盘假体组和假手术组。HA组和非HA组动物摘除C3/4间盘并置入相应国产人工...[目的]测量新型国产人工颈椎间盘假体在山羊颈椎的活动度。[方法]12只山羊随机分为3组,每组4只,包括羟基磷灰石(hydroxyapatite,HA)涂层的间盘假体组,非HA涂层的间盘假体组和假手术组。HA组和非HA组动物摘除C3/4间盘并置入相应国产人工颈椎间盘假体,假手术组仅行手术显露,未处理椎间盘。动态测量颈椎整体活动度及置换节段活动度(range of motion,ROM)。[结果]术后动物实验中所有山羊均成活,无切口感染及瘫痪。随时间推移HA组和假手术组的C2~C5ROM和C3/4ROM均无显著变化(P>0.05),而非HA组的C_(2)~C_(5)ROM和C_(3/4)ROM显著减少。术前及术后即刻三组间C_(2)~C_(5)ROM和C_(3/4)ROM的差异均无统计学意义(P>0.05),但术后1和3个月时,HA组和假手术组的C_(2)~C_(5)ROM和C_(3/4)ROM均显著大于非HA组(P<0.05),而HA组与假手术组的C_(2)~C_(5)ROM和C_(3/4)ROM差异无统计学意义(P>0.05)。[结论]HA涂层的新型国产人工颈椎间盘置换术后较好的保持了山羊颈椎的活动度。展开更多
文摘In order to provide reference for high quality tobacco producion,this experiment adopted a randomized block design in a field plot,and analyzed the effects of boron fertilizer on the growth,development on comprehensive quality of flue-cured tobacco by using mathematical statistics methods such as multiple comparison with NC297 as test material.The results showed that:spraying boron fertilizer on flue-cured tobacco leaves can promote the growth of flue-cured tobacco NC297 to a certain extent,effectively reduce the total particulate matter and tar content of tobacco,and play a positive role in regulating the total sugar,reducing sugar,nicotine and potassium content of flue-cured tobacco;the comprehensive quality of NC297 was the best when boron was applied at medium potassium level(K2B1).
文摘[目的]测量新型国产人工颈椎间盘假体在山羊颈椎的活动度。[方法]12只山羊随机分为3组,每组4只,包括羟基磷灰石(hydroxyapatite,HA)涂层的间盘假体组,非HA涂层的间盘假体组和假手术组。HA组和非HA组动物摘除C3/4间盘并置入相应国产人工颈椎间盘假体,假手术组仅行手术显露,未处理椎间盘。动态测量颈椎整体活动度及置换节段活动度(range of motion,ROM)。[结果]术后动物实验中所有山羊均成活,无切口感染及瘫痪。随时间推移HA组和假手术组的C2~C5ROM和C3/4ROM均无显著变化(P>0.05),而非HA组的C_(2)~C_(5)ROM和C_(3/4)ROM显著减少。术前及术后即刻三组间C_(2)~C_(5)ROM和C_(3/4)ROM的差异均无统计学意义(P>0.05),但术后1和3个月时,HA组和假手术组的C_(2)~C_(5)ROM和C_(3/4)ROM均显著大于非HA组(P<0.05),而HA组与假手术组的C_(2)~C_(5)ROM和C_(3/4)ROM差异无统计学意义(P>0.05)。[结论]HA涂层的新型国产人工颈椎间盘置换术后较好的保持了山羊颈椎的活动度。