Growth and production of rice (oryza sativa l.) With several application doses of urea fertiliser and cow manure

Integration of fertilisation using organic and inorganic fertilisers is one of the efforts to increase rice growth and production. This study aims to evaluate and analyse the effect of urea fertiliser and cow manure application on the growth and production of rice plants. This study used a separate plot design with three groups. The main plot was the dose of urea fertiliser including 100 kg ha-1, 200 kg ha-1, and 300 kg ha-1. The subplots were doses of cow manure including 500 kg ha-1, 1000 kg ha-1, 1500 kg ha-1, 2000 kg ha-1, and 2500 kg ha-1. The research data were then analysed by means of variance with BNT test as a further test. The results showed that the interaction of urea 300 kg ha-1 and no manure on panicle length (23.28 cm), urea 100 kg ha-1 and 2000 kg ha-1 on panicle weight per plant (2.85 g), urea 200 kg ha-1 and 2500 kg ha-1 manure on the number of filled grains per panicle (101, 67 grains), urea 100 kg ha-1 and 2500 kg ha-1 manure on the percentage of empty grains per panicle (12.12%), and urea 200 kg ha-1 and 2500 kg ha-1 manure on the weight of 1000 seeds (26.87 g). The single treatment of urea dose, 200 kg ha-1, gave the best effect on chlorophyll a (234.55), chlorophyll b (96.04) and total chlorophyll (337.27). Based on the results of the study, it can be concluded that the application of urea fertiliser with cow manure has a positive impact on the growth of rice plants.