Fermentation of Cow Urine as Liquid Organic Fertilizer to Increase Rice Production

Abstract This study aims to test cow urine as a liquid organic fertilizer to complement rice plant nutrition. The research location is in Minahasa District. Field experiments using a randomized block design. Namely, 4 treatments repeated 4 times. The rice tested was the Ciherang variety. Treatment 1 (U25A75) 1 l of cow urine mixed with 3 l of water (1:3), treatment 2 (U50A50)) One litre of cow urine mixed with one litre of water 1:1, treatment 3 (U75A25) three litres of cow urine mixed with 1 l of water 3:1. Treatment 4 (U0A100) Control without cow urine. Before being applied, cow urine was fermented for 10-14 days. The application technique for rice plants is spraying it on the leaves using a sprayer every 7 days. Observations of plant growth parameters include plant height. Observations of production parameters include panicle length, number of grains per panicle, weight of 1000 grains, and yield per hectare. The data collected were analysed statistically. The analysis showed that all treatments of cow urine liquid fertilizer affected plant height until the age of the plant was 45 days after planting. The ratio of cow urine and water 1:1 (U50A50) had a significantly higher effect than other treatments.