Correlation of Analysis Growth and Yield of Shallot (Allium ascalonicum L.) Plant Under Different Dosage Ammonium Sulphate Fertilizers and Source of Rhizobacteria in the Rainy Season
Maria Theresia Darini
Faculty of Agriculture Universitas Sarjanawiyata Tamansiswa Yogyakarta Indonesia
Abstract
This study aims to know correlation of growth analysis and yield of shallot plant in application under different dosage ammonium sulphate (AS) fertilizer and the sources of rhizobacteria in the rainy season. The study was conducted in Balecatur village, Gamping, Sleman, Yogyakarta from March to June 2018. The study was done using factorial Randomized Complete Block Design with three replications. The first factor was dosage of AS fertilizer (150, 250 and 350 kg ha-1). The second factor was sources of rhizobacteria (bamboo root, gliricidia root, peanut root) and control which was applied by AS 250 kg ha-1 of NPK. The observed variables were the analysis growth and yield of bulb per ha. The results were analysed using analysis of variance at 5% of significant then followed by multiple Duncan test at 5% of significant. There was no interaction between the dosage of ammonium sulphate fertilizer and the source of rhizobacteria on all observed variables. The dosage of US fertilizer up to 350 kg ha-1 did not increase growth and bulb yields, as well as sources of rhizobacteria, but highest bulb yields than controls were obtained at US 150 kg ha-1 and bamboo rhizobacteria. There was a high positive correlation between the components of the growth analysis, while the harvest index and bulb yield of the negative correlation was significantly low.
Keywords: Index of growth, harvest index, net assimilation rate, rhizobacteria of bamboo.
Topic: International Conference on Sustainable Agriculture