不同施肥配方对盆栽四季海棠生长的影响

Effect of Different Fertilization Formula on Growth of Potted Begonia X semperflorens-cultorum Hort.

研究了不同N、P、K施肥配方对盆栽四季海棠生长的影响,结果表明:N∶P∶K=2∶1∶4对四季海棠株高、冠幅生长影响显著;N∶P∶K=2∶1∶2最有利于植株冠幅与叶面积生长;施肥配方为N∶P∶K=2∶1∶4处理可明显增加四季海棠植株叶绿素及植株鲜重、干重,利于植株生长;N∶P∶K=2∶1∶4可使四季海棠花期提前,且延长花期,花期长达45 d。综合评价:N∶P∶K=2∶1∶4为培育高品质四季海棠盆花的最优施肥配方。

The effects of different N,P,K fertilizer formulas on the growth of potted Begonia X sempertlorens-cuhorum Hort. were researched. The results showed that the fertilization formula of N ： P ： K=2 ： 1 ： 4 had a significant effect on the growth of plant height and crown diameter of Begonia X semperflomns-cuhorum Hort.; the formula of N ： P ： K=2 ： 1 ： 2 was most conducive to the growth of plant canopy and leaf area; the formula of N ： P ： K=2 ： 1 ： 4 could increase the plant chlorophyll, plant fresh weight and dry weight of Begonia X sempertlorens-cultorum Hort.; and was conducive to the growth of the plant; the formula of N ： P ： K=2 ： 1 ： 4 could advance the flowering phase of Begonia X sempertlorenss-cuhorum Hort. and also extended the flowering period to as long as 45days. To sum it up, the formula of N ： P ： K=2 ： 1 ： 4 was the optimal formula of the fertilization for raising high-quality potted Begonia X sempertlorenss-cuhorum Hort.