PENGARUH PUPUK HIJAUKIRINYUH(Chromolaena odorata) TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI TANAH ULTISOL

Abstract

This study aims to determine the effect of kirinyuh green manure (Chromolaena odorata) on the growth of oil palm (Elaeis guineensis jacq.) seedlings in ultisol soils. This research was conducted in Muara Lembu, Singingi District, Kuantan Singingi Regency, Riau Province. The research method used was a non-factorial Randomized Block Design (RAK). Kirinyuh green manure treatment consisted of 6 levels of treatment, each treatment consisted of 3 replications so that 18 experimental units were obtained. Each experiment consisted of 4 plants, 3 of which were samples. M0 = Without Treatment (Control), M1 = Kirinyuh Green Manure 60 gr/10 kg of soil, M2 = Kirinyuh Green Manure 120 gr/10 kg of soil, M3 = Kirinyuh Green Manure 180 gr/10 kg of soil, M4 = Kirinyuh Green Manure 240 gr/10 kg of soil, M5 = Kirinyuh Green Manure 300 gr/10 kg of soil. The results showed that: the use of kirinyuh green manure had a significant effect on plant height, number of leaves, and stem diameter. The best treatment was found in M5: kirinyuh green manure 300 grams/10 kg of soil with a plant height of 68.22 cm with an increase in height of 39.89 cm, and a stem diameter of 1.78 cm, with an increase in diameter of 0.94 cm, and the number of leaves. 9.55 leaves, with an increase in the number of leaves 5.78.