A system for the cultivation of plants, comprising: a cultiva-
tion table (22), in which the plants to be cultivated have been
placed at least for the time of the growing stage; growing
substrates (11) in which the seeds of the plant are sown and
which are placed at the initial end (26) of the cultivation table
for germination; and elongated troughs (1) which hold the
growing substrates (11) in which troughs also the seeds and
seedlings of the plant as well as the grown plants are placed
during both said germination and said growing stage. In the
method for cultivation of plants in a greenhouse, a growing
substrate (11) for the cultivation of plants is placed in an
elongated trough (1), and seeds of a plant are sown in said
growing substrate placed in the trough. In the system and the
method, an elongated trough is used, comprising an
elongated chamber (2) limited by two side walls (3, 4) and a
bottom (5), and being totally open at the top.