Growth Response of Three Shallot Varieties (Allium Ascalonicum L.) From True Shallot Seed Given a Combination of Phosphorus and Potassium Fertilizer in Dry Land

Abstract

Shallots are one of the most widely adapted vegetables. Shallot production in Banten is still low and has not been able to meet local needs. The low productivity of shallots in Banten is partly due to the selection of varieties and application of inappropriate fertilization technology and the unavailability of site-specific fertilization packages. Fertilizers used as recommended are expected to produce economically profitable results. This research aimed to determine the effect of three shallot varieties from botanical seeds and a combination of P and K fertilizers on the growth of shallots on dry land. The research was conducted at the Experimental Garden of the Integrated Agricultural System of the Banten Province Agricultural Service at an altitude of 60 m above sea level. from July to September 2021. The design of this study using a factorial randomized block design, the first factor varieties treatment consists of three levels: Maserati varieties, Sanren varieties, and Tuk Tuk varieties. Factor fertilization treatment consists of three levels: 54 kg ha -1 P 2 O 5 + 90 kg ha -1 K 2 O, 72 kg ha -1 P 2 O 5 + 120 kg ha -1 K 2 O, and 90 kg ha -1 P 2 O 5 + 150 kg ha -1 K 2 O. The results showed that there was no interaction between varieties and combinations of P and K fertilizers on all observed parameters. Varieties treatment affected the number of leaves five weeks after planting, leaf area, plant wet weight and plant wet weight per plot, where the sanren variety had the best value, successively 16.5 strands; 499.28 cm 2 ; 86.90 g and 2105.01 g. The combination of fertilizer application of 90 kg ha -1 P 2 O 5 + 150 kg ha -1 K 2 O was the best for the parameters of leaf area, wet weight per plant and wet weight per plot, respectively 482.02 cm 2 ; 82.37 g; and 2065.61 g.