Respon Pertumbuhan Jahe Putih Kecil (Zingiber officinale var. Amarum) terhadap Pemupukan pada Media Tanpa Tanah.

Abstract

Small ginger cultivation still have an issue, it is Ralstonia solanacearum bacteria that causes quite large yield loss. The character of Ralstonia solanacearum is soil borne and can survive a long time in the soil, so that the study was conducted using media without soil which is a mixture of coconut coir dust (cocopeat) and rice husk. The research aims to determine the growth response of small white ginger in a mixture of coconut coir media (cocopeat) and rice husk media, with the intake of certain fertilizers. The experiment was conducted in Greenhouse of Balai Penelitian Tanaman Rempah dan Obat (Balittro), Bogor, West Java Cimanggu from September 2014 to February 2015. The study using a randomized Complete Block Design Group (RKLT) one factor with six treatments and four repetition. Treatment in the form of a complete fertilizer dose applications, among others; P0 (0 g / l) as a control, P1 (1 g / l), P2 (2 g / l), P3 (3 g / l), P4 (4 g / l), and P5 (5 g / l) , The results showed that the dosage of fertilizers affect plant height, number of leaves, leaf length, height and number of tillers but had no effect on stem diameter, whereas for production factor variable dosage of fertilizer affect root length, number of roots, rhizome weight, fresh weight biomass and the dry weight of biomass but did not affect the fresh weight and dry weight of root. Small white ginger can grow well in the mixture rice husk and coconut coir dust (cocopeat) media, a dose that produces the best rhizome weight is 3 g/l (P3).