Effect of application of chicken manure and Pseudomonas fluorescens bacteria on growth and yield of shallot (Allium ascalonicum L.)

Abstract

Studies on the cultivation of shallots (Allium ascalonicum L.) have been carried out to increase its growth and yield. The use of manure and bacteria that decompose organic matter is expected to provide nutrients that will be used for the growth of shallots. The aims of this study were 1. to determine the interaction effect of application of chicken manure and Pseudomonas flourescens bacteria; 2. the effect of application of chicken manure; and 3. the effect of application of P. frourescens on the growth and yield of shallots. The experiment was conducted in Panti village, Jember district in 2021. The experiment used a 4x3 factorial randomized design with three replications. The first factor is the dose of chicken manure i.e. no, 5, 10 and 15 ton ha−1 and the second factor is the dose of P. fluorescens i,e. no, 10 ml, and 20 ml per shallots. The growth and yield of shallots were assessed from plant height, number of leaves, root volume, number of tillers, fresh weight and dry weight of plant. The results showed that there was no significant interaction between the dose of chicken manure and the dose of P. flourescens used except for the parameters of fresh weight of plant and dry weight of plant. The best results were obtained from the application of 10 tons ha−1 of chicken manure and 20 ml of P. flourescens bacteria per shallots.