The Effect of Liquid Organic Fertilizer (POC) Waste Rice Washing on the Growth of Mustard Greens (Brassica juncea L)

Abstrak

The purpose of this study was to determine the effect of the concentration of liquid organic fertilizer (POC) of rice washing water waste on the growth of mustard greens (Brassica juncea L.). This research was conducted in February – April 2021 at the Biology Laboratory and Greenhouse of the Proclaimer II Campus, Bung Hatta University, Padang. The method used in this study is an experimental method using a Completely Randomized Design (CRD) which consists of 4 treatments and 3 replications. Each treatment is P0 Control (without giving POC rice washing water), P1 (5 ml POC rice washing water / 0.5 L water / day), P2 (15 ml POC rice washing water / 0.5 L water / day ), and P3 (25 ml POC of rice washing water / 0.5 L of water / day). Parameters observed were nursery acceleration, plant height, number of leaves (strands), and leaf length. The data obtained were processed using Analysis of Variance (ANOVA) at a 95% confidence level. The research data showed that the application of liquid organic fertilizer (POC) to rice washing water waste on mustard greens (Brassica juncea L.) with different concentrations gave an effect on the parameters of plant height growth and number of leaves (strands), but did not affect the parameters. nursery acceleration and leaf length. From the treatment, it was found that the average nursery acceleration parameter occurred at 3 DAP (Days After Planting) applicable to each treatment and replication during the study. The highest growth was found in the control treatment (P0) (16.36 ± 1.48 cm) and the lowest average was found in the treatment (P3) 25 ml/L (11.50 ± 1.25 cm). The highest number of leaves growth was found in the control treatment (P0), namely (6.66 ± 0.57 cm) not significantly different from the treatment (P2) 15 ml/L and the lowest mean number of leaves was found in the treatment (P3) 25 ml/L. that is (5.00 ± 1.00 cm). The highest leaf length growth was found in the control treatment (P0) (5.93 ± 1.65 cm) and the lowest average was found in the 25 ml/L treatment (P3) (3.80 ± 0.70 cm).