“Pengaruh Pemberian Pupuk Organik Kotoran Sapi dan Berbagai Mulsa Terhadap Pertumbuhan dan Produksi Tanaman Kailan (Brassica oleraceae var. Acephala)

Abstract

Adi Arison Munthe. Effect of Organic Fertilizer of Cow Manure and Mulch on Kailan Plant Growth and Production (Barassica oleraceae Acephala Dc). Guided by Ir. Erwin Pane, Ms and Ir. Rizal Azis, MP. This study aims to determine the effect of organic fertilizer application of cow dung on the growth and production of kailan plants (Brassica oleraceae acephala DC) given mulch. This research was conducted experimental experiment of Yayasan Haji Agus Salim University of Medan Area, Percut Sei Tuan Subdistrict, Deli Serdang Regency started from July to August 2016. This research was done by planting in polybagwith3kgweight/polybag. This research was conducted using Randomized Block Design (RAK) Factorial consisting of 2 treatment factors. The first factor is the factor of applying cow dung organic fertilizer consisting of 4 treatment levels: K0 = (control), K1 = (soil ¾ part: fertilizer ¼ part per polybag), K3 = (soil ¼ part: fertilizer ¾ part per polybag) . The second factor is mulching factor consisting of 3 treatment levels ie M0 = (control), M1 = (corncob mulch), M2 = (mulch of banana stem). The results showed that the application of organic fertilizer of cow dung had a significant effect on the production per sample and the production per plot, but it had no significant effect on leaf length, leaf number, and leaf area on kailan plant. In fact, the application of organic fertilizer of cow dung on leaf length parameter, leaf number, and leaf area is allegedly caused because the decomposition process of organic material contained in manure is slow, so it can not be utilized optimally by the plants. Furthermore, the effect of mulching is very significant on leaf length parameter, and leaf area of 30 days after planting but not significant to leaf number, production per sample and production per plot of kailan plant