Effectiveness of giving organic fertilizer with different doses on the growth and yield of red ginger (Zingiber officinale var Rubrum)

Abstract

Red ginger has not been cultivated intensively, so that there was a production decrease in 2018 of 4.24% from 2017. The increase in red ginger cultivation can be done by fertilizing organic fertilizers. This study aimed to obtain an effective dose of organic fertilizer in increasing the growth and yield of red ginger. From March to October 2020, the research was conducted at the UNS experimental area in Wonorejo Village, Jatiyoso, with an altitude of 778 masl. The study was conducted using a randomized complete block design (RCBD) with 1 factor and 5 treatments it is P0 (control), P1 (dose 1 kg. m-2), P2 (dose 1.5 kg. m-2), P3 (dose 2 kg. m-2), and P4 (dose 2.5 kg. m-2). The results showed that the application of organic fertilizer had an effect. The effective dose of organic fertilizer in increasing the growth and yield of red ginger was a dose of 2 kg. m-2.