Effect of soil and plant covering and sowing time on the yield of fennel bulbs grown from sowing directly in the field
Department of Soil Cultivation and Fertilization of Horticultural Plants
University of Life Sciences in Lublin
Leszczyńskiego 58, 20-068 Lublin, Poland
A field experiment on fennel growing (Foeniculum vulgare var.
azoricum Mill.) was conducted at the
Experimental Farm of the University of Life Sciences in Lublin, on a grey-brown podzolic soil. The experiment
included the following factors: three kinds of covers - soil covering with black polyethylene film (PE 0.05 mm),
soil covering with black polypropylene non-woven fabric (PP 50 g m-2) and flat covering of plants with white
polypropylene non-woven fabric (PP 17 g m-2); three sowing terms
- April, May, June; two fennel cultivars
- ‘Rudy F1’ and ‘Zefa Fino’. Soil mulching with PP50 and, to a slightly lesser degree, black PE, caused an
increase in the total and marketable yield of fennel bulbs and had a favourable effect on the yield structure.
The lowest yield, with the highest share of non-marketable bulbs, was obtained following plant covering with
PP17. The bulbs were the largest in the experimental treatments with PP50 mulching. The smallest bulbs were
harvested following PP17 plant covering. For fennel growing, the most favourable sowing time was April. The
lowest yield was obtained from the June sowings. The cultivars studied did not vary in terms of yield level and
structure. The bulbs of the ‘Zefa Fino’ cultivar were longer and more slender than those of the ‘Rudy F1’ cultivar.
Błażewicz-Woźniak M., 2010. Effect of soil and plant
covering and sowing time on the yield of fennel bulbs grown from
sowing directly in the field. Folia Horticulturae 22/2: 59-66.