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为了对施甸植烟土壤养分进行分析与综合评价,该文利用SPSS软件对72个土壤样品的9项理化指标进行统计分析。结果表明,土壤肥力最高的10个样本(占总样本的13.89%),综合得分F∈[0.565 8,1.982 6];土壤肥力较高的25个样本(占总样本的34.72%),综合得分F∈[0.005 3,0.473 8];土壤肥力较低的24个样本(占总样本的33.33%),综合得分F∈[-0.498 5,-0.044 5];土壤肥力最低的13个样本(占总样本的18.06%),综合得分F∈[-0.884 2,-0.517 4]。因此,鉴于全县植烟土壤肥力存在着较大差异,对土壤肥力较高的田地,要施用适量有机肥和复合肥;而土壤肥力处于较低水平的,则要足量、配合施用有机肥和复合肥。
In order to analyze and comprehensively evaluate the soil nutrients in Shidian tobacco, nine physical and chemical indexes of 72 soil samples were analyzed by SPSS software. The results showed that among the 10 samples with the highest soil fertility (accounting for 13.89% of the total samples), the comprehensive score F ∈ [0.565 8,1.982 6], 25 samples with high soil fertility (34.72% of the total samples) F ∈ [0.005 3,0.473 8]; 24 samples with low soil fertility (33.33% of the total sample), the comprehensive score F ∈ [-0.498 5,0.044 5]; 13 samples with the lowest soil fertility 18.06% of the total sample), the composite score F ∈ [-0.884 2, -0.517 4]. Therefore, in view of the great difference in soil fertility of tobacco in the whole county, proper organic fertilizer and compound fertilizer should be applied to the field with higher soil fertility; while the soil fertility is at a low level, sufficient amount should be used in combination with organic fertilizer And compound fertilizer.