阴棚下施肥对春兰生长的影响研究

目的]为黔西南地区春兰的人工驯化和产业化生产提供依据。方法]对阴棚栽培的春兰分别喷施复合肥、尿素、磷酸二氢钾、尿素与磷酸二氢钾混合肥和清水(对照),研究施肥对春兰生长的影响。结果]除磷酸二氢钾处理外,其余处理与对照相比沤心病苗数差异均达极显著水平,施肥处理沤心病的平均发生率为2.63%。各处理与对照相比,叶斑病病叶差异均达极显著水平。除复合肥处理外,其余处理与对照相比萌蘖率差异均达极显著水平,其中喷施混合肥处理的最高。除尿素处理外,其余处理与对照相比开花率差异均达极显著水平,喷施复合肥处理的最高。结论]喷施氮磷钾完全肥料促进春兰生长的效果显著。

Study on the Effect of Fertilization on the Growth of Cymbidium goeringii under Shading Shed

Objective] The aim of the study was to supply basis for the artificial domestication and industrial production of Cymbidium goeringii in southwest Guizhou.Method] The C.goeringii cultivated under shading shed were sprayed with compound fertilizer,urea,potassium dihydrogen phosphate(PDP),mixed fertilizer of urea and PDP and clear water(CK) to study the effect of fertilization on the growth of C.goeringii.Result] Except for the treatment with PDP,the differences on seedlings infected heart-retting disease between the other treatments and CK reached extremely significant level and the mean occurrence rate of heart-retting disease in fertilization treatment was 2.63%.The difference on infected leaf of leaf spot between each treatment and CK reached extremely significant level.Except for the treatment with compound fertilizer,the difference on sprouting rate between the other treatments and CK reached extremely significant level.The sprouting rate in the treatment of spraying mixed fertilizer was highest.Except for the treatment with urea,the difference on flowering rate between the other treatments and CK reached extremely significant level.The flowering rate in the treatment of spraying compound fertilizer was highest.Conclusion] The promoting effect of spraying complete N-P-K fertilizer on the growth of C.goeringii was significant.