Effect of an Organic and Inorganic Foliar Fertilizer, Time and Fertilization Frequencies on Dendrobium Growth

Abstract

Among many factors of cultivation succeed, fertilization is the most important supporting for Dendrobium cultivation. This experiment was conducted to evaluate an organic foliar fertilizer “Bio Super Sugima” the local product of fish extract and inorganic foliar fertilizers “Hyponex 20:20;20”, time and fertilization frequencies on two young plant Dendrobium cultivars G1 (BALITHI CF022.27) and G2 (Clone 22.25). Experimental activities were conducted at location which has altitude 100 meters above sea level. The treatments of time were at 8 a.m, as a standart fertilization (T1), (T2) at 6-7 a.m once a week; (T3) 5-6 p.m once a week; (T4) 6-7 a.m twice a week; (T5) 5-6 p.m twice a week; (T6) combination morning at 6-7 a.m and evening at 5-6 p.m once a week. Among these attributes, length of pseudobulb, number of leaves/pseudobulb, length of leaf, width of leaf and number of shoot were measured three times with interval 2 months after transplanting. After six months, observation were showed that an organic “Bio Super Sugima” and inorganic “Hyponex” foliar fertilizer were influenced toward growth of young Dendrobium. Fertilization using hyponex inorganic fertilizer has been given better affects of the Dendrobium vegetative growth than organic “ Bio Super Sugima”. Fertilization in Dendrobium performed at 06.00-07.00 a.m were better than at 17.00-18.00 p.m, both at the frequency of oncee or twice a week fertilization. Likewise, the use of an organic supplements were known that were better applied in the morning compared to the afternoon. In this case also showed that varieties were effected the growth response. Genotype BALITHI CF022.27 was more responsive toward fertilization than clone 22.25 using both organic or in organic fertilizers. In the present time, there were not much available information on fertilization application on Dendrobium cultivation. Thereby, the present experiment was conducted with a view to studying the effect of fertilizer on the vegetative growth of Dendrobium. Hopefully this experiment could be give benefit to orchid user