In Hungary sowing structure was simplified in the last 2 decades, which causes problems from an agronomic aspect in crop rotation, plant protection and tillage. Futhermore from economic aspect this increasing process makes vulnerable our plant production. It was required the sowing structure diversification in a gradual form. A possible way to increase the sown area of protein plants is plant association. Our investigations were made in Szeged-Öthalom, in 2018-2019 year, where the experimental plots were 10m2, in 4 repeats, with 2 winter wheat varieties (GK Szilárd, Cellule) and 2 field pea varieties (Aviron, Enduro). We use 2-2 different seed density (winter wheat 3 and 5 million seed ha-1, winter pea 0,6 and 1 million seed ha-1) in every varieties in every combination. As a result of the comparison of winter wheat and field pea sowing together or alone, both of these 2 varieties grain yield were significantly less in plant association. This yield depression was observed when we were used 100-100% winter wheat and pea seed density together. However there were combinations, which gave higher yield, and income than pure stands. We have noticed that for either wheat or pea, grain yield is determined not only the seed density, but also the choice of the varieties and their combinability.

winter wheat, field pea, intercrop, yield, profitability

field crops and pastures

Presentation: poster