Zlokalizowane nawożenie azotem
w uprawie mieczyka Gladiolus L.
Z Katedry Uprawy Roli i Nawożenia Roślin Ogrodniczych
Akademii Rolniczej w Krakowie
Abstract. The way of introducing the nitrogen fertilizer into soil highly influenced the growth and development of Gladiolus L. N-depot fertilization between rows turned out to be a better solution for fertilizer application. However, the type and dose of the fertilizer did not have a distinct effect. Fertilization with urea under corm during planting
caused a considerable delay in Gladiolus L. vegetation.Key words:
urea, ammonium sulfate, N-depot fertilization, Gladiolus L.
Summary
The aim of the study was to estimate the production responses of depot fertilization by means of reduced nitrogen forms (N-NH2 i N-NH4) on Gladiolus L. var. ‘Wars’. The experiment was conducted on the field of brown soil in which the system of spacings between and within rows was 15 ´ 30 cm. Two nitrogen forms – urea and ammonium sulfate – in 3 doses: 50, 100 and 150 mg N∙dm-3 of soil were used in experiment. Two ways of fertilizations were applied: 1. under corms during planting, 2. between rows 6 weeks later.
In the control objects, urea and ammonium sulphate broadcast applications (dose 100 mg N ∙ dm-3) during planting and 6 weeks later were administered. Parameters which describe the foliage and inflorescenses, as well as the rate of shooting of the plantswere measured.