Effect of mulching with film of different colours made from original and recycled polyethylene on the yield
of butterhead lettuce and celery
Piotr Siwek*, Andrzej Kalisz*, Renata Wojciechowska**
**Department of Vegetable Crops
**Department of Plant Physiology
**Agricultural University in Kraków
**29 Listopada 54, 31-425 Kraków, Poland
The experiment carried out in 2005 and 2006 at the Experimental Station at
Mydlniki by Krakow concerned the effect of mulching films of different colours
made from original and recycled materials on microclimatic conditions and
subsequent yield of ‘Melodion’ butter lettuce and ‘Tango’ celery. The objects of
the experiment were polyethylene transparent, white and black films, made from
original and recycled materials. Plants cultivated without mulching were the
control. In lettuce cultivation on transparent mulch the temperature was by 2.4°C
higher and in the case of celery by 1.7°C than the temperature of non-mulched soil.
Under white and black film, the difference of temperature did not exceed 1.0°C. As
far as the means from the two years are concerned, black mulches had most positive
effect on the yield of both vegetables, followed by white and transparent films.
Siwek P., Kalisz A., Wojciechowska R., 2007. Effect of
mulching with film of different colours made from original and
recycled polyethylene on the yield of butterhead lettuce and
celery. Folia Horticulturae 19/1: 25-35.