不同栽培基质对海巴戟幼苗生长的影响

Effects of Different Cultivation Substrates on the Growth of Morinda citrifolia Seedlings

[目的]筛选比较适合海巴戟幼苗生长的基质配方。[方法]试验采用随机区组设计,以生土为对照,设6个处理:①园土+草炭土+农家肥、②椰糠+草炭土+农家肥、③椰糠+园土+农家肥、④椰糠+珍珠岩+草炭土+农家肥、⑤椰糠+珍珠岩+园土+草炭土+农家肥、⑥园土,研究6种不同栽培基质对海巴戟幼苗生长的影响。[结果]处理④的植株生长最好,与处理⑥和对照差异极显著。处理③、④的平均株高分别为22.90和21.64 cm;处理④、⑤的平均茎基分别为0.69和0.66 cm;处理③、④的平均叶片数分别为24.53和24.13;处理④的单株地上、地下部分鲜重分别达86.3和25.9 g。[结论]椰糠+珍珠岩+草炭土+农家肥(1∶1∶1∶1)为海巴戟幼苗生长的最佳配方。

[ Objective ] The research aimed to screen out the substrate formula relatively suitable for the growth of Morinda citrifolia seedlings. [ Method] The randomized block design was used in the experiment.With raw soil as CK,6 treatments were set up as follows： （1） garden soil ＋ peat soil ＋ farmyard manure,（2） coconut dust ＋ peat soil ＋ farmyard manure, （3） coconut dust ＋ garden soil ＋ farmyard manure, （4） coconut dust ＋ perlite ＋ peat soil ＋ farmyard manure, （5）eoconut dust ＋ perlite ＋ garden soil ＋ peat soil ＋ famayard manure, （6） garden soil. The effects of 6 different cultivation substrates on the growth of M. citrifolia seedlings were studied. [ Result] The plants in treatment （4） grew best and showed extremely significant difference from that in treatment （6） and CK.The average plant heights in treatments （3） and （4） were 22.90 and 21.64 cm resp .The average stem diameters in treatments （4） and （5） were 0.69 and 0.66 cm resp.The average leaf numbers in treatments （3） and （4） were 24.53 and 24.13 resp.The fresh weights of aerial and underground parts per plant in treatment （4） reached 86.3 and 25.9 g resp. [Conclusion] The optimtuu formula was coconut dust ＋ perlite ＋ peat soil ＋ farmyard manure （1：1：1 ：1）.