Received: February 7th, 2021 ; Accepted: April 10th, 2021 ; Published: April 29th, 2021 ; Correspondence: [email protected] order to identify the most suitable varieties for organic farming, the Institute of
Agricultural Resources and Economics in 2018 started study four legume species. The
independent variables of the study were the legume genotypes: faba bean (Vicia faba L., cv.
‘Isabell’, ‘Lielplatone’, ‘Laura’, ‘Boxer’), field pea (Pisum sativum L, cv. ‘Astronaute’, ‘Bruno’,
‘Rebekka’, ‘Zaiga’), narrow lupine (Lupinus angustifolius L., cv. ‘Sonet’, ‘Probor’, ‘Derliai’,
‘Haags Blau’), and soya (Glycine max L., cv. ‘Annucha’, ‘Sculptor’, ‘Augusta’). The soil types
of the experimental organic field were sod–podzolic, sandy loam, and loamy sand. At the start of
the study the organic substance concentration was 15–18 mg kg-1
, pHKCl was 5.3–5.98, the
concentration of plant - available phosphorus (P205) was 133.2–182.9 mg kg-1
, and the
concentration of potassium (K2O) - 69.2–109.7 mg kg-1
. Green manure (buckwheat) was a
pre-crop, incorporated in autumn. For the comparison of economic indicators, the gross coverage
calculation was used, which based on the difference obtained by subtracting variable costs from
the valuation of gross output. All variable costs and revenues were included in the gross margin
calculation without value added tax. The study indicated large differences in yields between
genotypes. From the economic point of view, the most suitable cultivars for cultivation according
to the organic farming method were: field beans - ‘Isabell’ and ‘Lielplatone’ with average gross
cover (GC), 505.40 and 504.60 EUR, respectively, field peas - ‘Bruno’ (GC 379.60 EUR),
narrow-leaved lupin - ‘Derliai’ (GC 647.70 EUR), soybeans - ‘Sculptor’ (GC 204.40 EUR).
Among the legume species studied, lupine showed the highest economic performance, among the
genotypes - cultivar ‘Derliai’ (α = 0.05)
