THE EFFECT OF COMBINATION OF PLANT MEDIA AND NPK FERTILIZER CONCENTRATION ON THE GROWTH AND DEVELOPMENT OF WHITE REAGENT VARIETY POT CHRISAN (Dendrathema grandiflora)

Abstract

Potted chrysanthemum is a horticultural commodity that is favored by consumers because it has a variety of flower colors with beautiful flower characteristics, short and lush stems. Growth and development of potted chrysanthemum plants were influenced by growing media and fertilizer improvement. This study was designed using a factorial Randomized Block Design (RBD) with 2 factors. Factor 1 had 6 levels including M1 treatment (chaff charcoal: cocopeat: sand with a ratio of 2: 1: 1), M2 treatment (husk charcoal: compost: sand with a ratio of 2: 1:1), M3 treatment (cocopeat: husk charcoal: sand with a ratio of 2 : 1 : 1), M4 treatment (cocopeat : compost : sand with a ratio of 2 : 1 : 1), M5 treatment (compost : husk charcoal : sand with a ratio of 2 : 1 : 1), M6 treatment (compost : cocopeat: sand with a ratio of 2: 1: 1). Factor 2 has 3 levels including treatment P1 with a concentration of 150 ppm, treatment P2 with 200 ppm, and treatment P3 with 250 ppm. The results obtained were that the M1 treatment was a combination planting media treatment that produced the highest growth average. The P3 treatment was the concentration of fertilizer application that produced the highest growth average. The M1P3 interaction treatment was the combination that produced the highest average growth in stem diameter at 1 WAP. The M6P3 treatment was the combination that produced the highest average growth in stem diameter at 3, 5 and 7 WAP. The M4P3 treatment was the combination that produced the highest average growth in crown diameter.