The effect of NPK fertilizer dose and type on the growth and production of scallions (Allium fistulosum l.)

This study aimed to determine the effect of the right and optimal dose and type of NPK fertilizer on the growth and production of leek plants. The purpose is to determine the optimum dose of NPK fertilizer, the kinds of NPK fertilizer that can increase, and the interaction between the dose and type of NPK fertilizer. This research was conducted in Kalibening District, Central Java. It is used in the field of agriculture or specifically in the discipline of agrotechnology. This research aims to determine the optimum dose of NPK fertilizer, the types of NPK fertilizer that can increase, and the interaction between the dose and type of NPK fertilizer. This research used the Randomised Group Design (RAK) method. NPK dosage consisted of 4 levels, and NPK variety consisted of 3 levels. Data were processed using Microsoft Excel with an analysis of variance. The best NPK fertilizer dose was 3.5/plant (140kg/ha) (K1). The optimum type of NPK fertiliser is NPK 16: 16: 16 (M1). There is a significantly different interaction between the variable stem diameter (mm) at a dose of 7g/plant (300kg/ha) and NPK 15:09:20+TE fertilizer (K2M2).