肥料种类及配比对蓝花鼠尾草生物学性状及生物产量的影响

采用L_9(3~4)正交试验设计,研究了肥料种类和施肥配比对蓝花鼠尾草生物学性状及生物产量的影响。结果表明:有机肥、氮肥、磷肥和钾肥4个因素对蓝花鼠尾草株高和生物产量影响的大小顺序为:氮肥有机肥磷肥钾肥;对蓝花鼠尾草冠幅影响的大小顺序为:氮肥有机肥钾肥磷肥。经直观分析、方差分析和多重比较进行综合评价,在供试生态条件下,施用有机肥200 kg/667m~2、氮肥25 kg/667m~2、钾肥7.5 kg/667m~2,最有利于其株高、冠幅的生长;获得蓝花鼠尾草最高生物产量的施肥组合为:施用氮肥25 kg/667m~2+磷肥17 kg/667m~2+钾肥15 kg/667m~2。

Effects of Different Fertilizers and Fertilizing Proportion on Biological Character and Biomass of Salvia farinacea

The effects of different fertilizers and fertilizing proportion on biological character and biomass of Salvia farinacea were studied by using orthogonal design L9(34). The results showed that the order of 4 factors on plant height and biomass were nitrogenous fertilizer>organic fertilizer>phosphatic fertilizer>potash fertilizer, and the order of 4 factors on crown width was nitrogenous fertilizer>organic fertilizer>potash fertilize>phosphatic fertilizer. The data subjected tovisual analysis, variance analysis and multiple comparison, and indicated that the optimum combination of the plant growth in the test were: organic fertilizer 3000 kg/hm2+nitrogenous fertilizer 375 kg/hm2+ potash fertilizer 112.5 kg/hm2, the optimum combination to gain higher biomass in the test were: nitrogenous fertilizer 375kg/hm2+phosphatic fertilizer 255 kg/hm2+potash fertilizer 225 kg/hm2.