Productive Improvement of Welsh Onion Cultivation Using a Fertilizer-applicator Ditcher (Part 2)

Abstract

This study investigated Welsh onion cultivation systems using a fertilizer-applicator ditcher in the field. The double-drill fertilizer block exhibited better plant and branch growth, plant weight, and nitrogen absorption than other blocks in the first growth stage. Drill-fertilized blocks exhibited decreased growth because the ditch bottom was softened by the chisel and fertilizer opener. Double-drill fertilizer blocks exhibited better growth than the other blocks. That block showed yields increased by 3.2-15.3%, branching length at 3.9-12.7 points, with a rate of L size at 3.9-12.7%. Results show that Welsh onion cultivation systems using a fertilizer-applicator ditcher should be used with a softened ditch bottom and double drill fertilizing.