Effect of subsurface drip fertigation with nitrogen on the yield of asparagus grown for the green spears on a light soil in central Poland
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2022Author
Rolbiecki, RomanSadan, Hicran
Rolbiecki, Stanislaw
Jagosz, Barbara
Szczepanek, Malgorzata
Figas, Anna
Atılgan, Atılgan
Pal-Fam, Ferenc
Panka, Dariusz
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Abstract: During the growing period of many agricultural and horticultural plants, the use of
fertigation usually increases the yield; however, the response to this treatment may depend on the
cultivar. The effect of subsurface drip fertigation with nitrogen on the yield of three asparagus
(Asparagus officinalis) cultivars grown for green spears in light soil was studied. The multi-year
(2011–2017) field experiment was carried out on sandy soil and was arranged in a split-plot design
with four replications. The first factor was the method of fertilization with nitrogen: (1) control—
spreading nitrogen fertilization without irrigation and (2) subsurface drip fertigation with nitrogen.
The second factor was the genotype (a cultivar) of asparagus—the following cultivars were tested:
Ramada, Rapsody and Ravel. Generally, subsurface drip fertigation with nitrogen increases the
marketable yield of green spears and the number of spears produced by a single plant, as well
single-spear weight. ‘Ramada’ achieved the best results with all yield parameters. A significant
correlation coefficient between the sum of rainfall and irrigation rates and yield parameters of tested
cultivars was also found. The studies showed a varied response of the tested asparagus cultivars to
the fertigation treatment.