The Use of ZA and SP 36 Fertilizer on Growth and Yield of Red Ginger (Zingiber officinale var. Rubrum)

Abstract

Abstract Red ginger (Zingiber officinale var. rubrum) is a medicinal plant that contains essential oils in rhizome. In order to meet market demand, by integrated plant nutrition supply it is necessary to apply both organic and inorganic fertilization. This study aims to determine the right combination of ZA and SP 36 fertilizer doses in the growth and yield of red ginger. This esearch was conducted in March - August 2021 in Pelem, Wonorejo Village, Jatiyoso District, Karanganyar Regency, Indonesia with 762 usl and coordinates 7°43'24.7”S 111°05'31.2”E. The research design used randomized completed block design (RCBD) one factor with 4 levels and 6 replications. The treatment levels were D0 (Control, without in organic fertilization), D1 (225 kg.ha−1ZA+50 kg.ha−1SP 36), D2 (450 kg.ha−1ZA+100 kg.ha−1SP 36), D3 (675 kg.ha−1ZA+150 kg.ha−1SP 36). The results ZA and SP 36 fertilization obtained have not been able to increase the growth and yield of red ginger. Research needs to be done with the balance of other nutrients to increase the yield of red ginger.