Respon Pertumbuhan dan Produksi Tanaman Petsai (Brassica Chinensis L.) Terhadap Pemberian Limbah Air Kelapa Tua dan Pemberian Pupuk Kandang Kelinci

Abstract

This study aims to determine the response of growth and production of Chinese cabbage (Brassica chinensis L.) to the provision of old coconut water waste and rabbit manure, which was carried out at the Experimental Garden of the Faculty of Agriculture, Medan Area University, Jalan Kolam No. 1 Medan Estate, Percut Sei Tuan District with a height of 12 m above sea level, flat topography and alluvial soil type. This research starts from November to December 2017. The design used in this research was Factorial Randomized Block Design (RBD), with treatment factors: 1) Factors of giving coconut water liquid organic fertilizer (A) consisting of 4 levels of treatment, namely: A0 = without POC coconut water (control), A1 = 50% concentration per liter or 500 ml / l water, A2 = concentration 75% per liter or 750 ml / l water, A3 = concentration 100% per liter or 1000 ml / l water; and 2) Factors of rabbit manure (K) consist of 4 levels, namely: K0 = without rabbit manure (control), K1 = dose 5 tons / ha or 0.5 kg / plot, K2 = dose 10 tons / ha or 1 kg / plot, and K3 = dose of 15 tons / ha or 1.5 kg / plot. This research was carried out with 4 replications. Parameters observed in this study were plant height, number of leaves, weight per sample plant, plant weight per plot, selling weight per plot and root weight per plot. The results obtained from this study is the provision of cow manure has a significant effect on the growth and production of Chinese cabbage, where the administration of 0.75 kg / plot can be applied in the cultivation of Chinese cabbage. While the provision of old coconut water waste and the interaction between the two treatment factors had no significant effect on the growth and production of Chinese cabbage.