In the demonstration
model the soil strip tillage was adopted, this enabled from
one side an efficient crop realisation, on the other the conservation
of soil and water and a good control on the weeds in areas uncultivated.
It is realised foremost by rotary elements machines (harrows,
cultivators) working the first 15-30 cm of the soil, or by rippers
moving and giving air to the soil 20 cm deep.
This operations may be held on a limited surface, depending
on the kind of crop. The soil indeed could be worked and configured
in strips 15-20 cm deep and 100 cm wide (or more), leaving amidst
50-60 cm of unworked soil.
During the transplant a plastic (or by maize’s starch)
film could be laid on the strips as mulching. Depending on the
different cultural spacing exigencies, the strips could consist
of two or more rows of plants.
This method could be adopted for crops preferring close spacing
(e.g. lettuces, radicchio, onion, garlic) or for those preferring
twin rows (e.g. tomatoes, cabbage, broccoli).
In case of flat-behavioural crops with reduced density
(e.g. water melon, pumpkin, melon) a wider unworked portion
of soil could be left over (100 cm or more). For other crops,
preferring a single row with spacing wider than 40 cm (e.g.
leek, fennel, celery, cauliflower, cabbage, zucchini, pepper,
tomato) a more narrow strip of soil could be worked (about 20