The experimental field is composed of brown
forest soil, with a mechanical composition of sand
and sandy clay, and the subsoil water is below 5 m; it
therefore cannot influence water turnover. Tomato is
usually planted after the last spring frost around the
first 10 days of May in Hungary, and so the seeds were
sown in a greenhouse on 2 April 2007 and 7 April
2008 and then transplanted on 14 May 2007 and 12
May 2008. The experiment used a randomized block
design, and the number of replications were 8 (2007)
and 4 (2008) for each of the treatments. The Brigade
F1
variety (Seminis, Hungary) was used. Seedlings
were arranged in double (twin) rows with a distance
of 1.2 and 0.4 m between the rows and 0.3 m between
the plants, with a plant density of 4.2 plants m–2. For