遮阳网和肥料种类对铁皮石斛生长的影响

主要研究了遮阳网和肥料种类对铁皮石斛（Dendrobium candidum）生长的影响，选取了株高、茎长、茎粗、叶片数、顶叶叶长、叶宽等6个方面作为铁皮石斛的生长指标。结果表明：5—9月是铁皮石斛茎长的主要生长期，其他月份铁皮石斛的茎长基本处于停止生长的状态，因此，在铁皮石斛大棚栽培过程中，为了提高铁皮石斛的产量和节省种植成本，提高经济效益，可以选择在这段时间进行追施有机肥。研究还表明遮盖1层2针遮阳网对于提高铁皮石斛的茎长效果最好，且追施豆饼肥和花生肥对铁皮石斛的茎长有明显的促进作用，从而可以有效地提高铁皮石斛的产量。

Effects of sun shading net and fertilizer type on the growth of Dendrobium candidum

The effects of sunshade net and fertilizer types on the growth of Dendrobium candidum were studied. The plant height,stem length,stem diameter,leaf number,leaf length and leaf width were selected as growth indexes of D.candidum.The results showed that the main growth period of stem length of D.candidum was from May to September and stop growing in other months.Therefore,it is suggested to topdress the organic fertilizer from May to September to improve the output of D.candidum and save cultivation cost.The results also showed that shading with 1 layer 2-pin sunshade net was the best in this study to improve stem length of D.candidum,and topdressing bean fertilizer、peanut fertilizer could promote D.candidum stem length obviously,which could effectively improve the output of D.candidum.