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Open AccessArticle

Competition Effects and Productivity in Oat–Forage Legume Relay Intercropping Systems under Organic Farming Conditions

1
Joniškėlis Experimental Station, Lithuanian Research Centre for Agriculture and Forestry, Pasvalys Distr., 39301 Joniškėlis, Lithuania
2
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto 1, Kėdainiai Distr., 58344 Akademija, Lithuania
*
Author to whom correspondence should be addressed.
Academic Editors: Claudia Di Bene, Rosa Francaviglia, Roberta Farina, Jorge Álvaro-Fuentes and Raúl Zornoza
Agriculture 2021, 11(2), 99; https://doi.org/10.3390/agriculture11020099
Received: 11 December 2020 / Revised: 13 January 2021 / Accepted: 20 January 2021 / Published: 25 January 2021
(This article belongs to the Special Issue Agricultural Diversification)
Cereal-legume intercropping is important in many low-input agricultural systems. Interactions between combinations of different plant species vary widely. Field experiments were conducted to determine yield formation regularities and plant competition effects of oat (Avena sativa L.)–black medick (Medicago lupulina L.), oat–white clover (Trifolium repens L.), and oat–Egyptian clover (T. alexandrinum L.) under organic farming conditions. Oats and forage legumes were grown in mono- and intercrops. Aboveground dry matter (DM) measured at flowering, development of fruit and ripened grain, productivity indicators, oat grain yield and nutrient content were established. The results showed that oats dominated in the intercropping systems. Oat competitive performance (CPo), which is characterized by forage legumes aboveground mass reduction compared to monocrops, were 91.4–98.9. As the oats ripened, its competitiveness tendency to declined. In oat–forage legume intercropping systems, the mass of weeds was significantly lower compared to the legume monocrops. Oats and forage legumes competed for P, but N and K accumulation in biomass was not significantly affected. We concluded that, in relay intercrop, under favourable conditions, the forage legumes easily adapted to the growth rhythm and intensity of oats and does not adverse effect on their grain yield. View Full-Text
Keywords: aboveground mass; black medick; Egyptian clover; grain yield; nutrients; white clover aboveground mass; black medick; Egyptian clover; grain yield; nutrients; white clover
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MDPI and ACS Style

Gecaitė, V.; Arlauskienė, A.; Cesevičienė, J. Competition Effects and Productivity in Oat–Forage Legume Relay Intercropping Systems under Organic Farming Conditions. Agriculture 2021, 11, 99. https://doi.org/10.3390/agriculture11020099

AMA Style

Gecaitė V, Arlauskienė A, Cesevičienė J. Competition Effects and Productivity in Oat–Forage Legume Relay Intercropping Systems under Organic Farming Conditions. Agriculture. 2021; 11(2):99. https://doi.org/10.3390/agriculture11020099

Chicago/Turabian Style

Gecaitė, Viktorija; Arlauskienė, Aušra; Cesevičienė, Jurgita. 2021. "Competition Effects and Productivity in Oat–Forage Legume Relay Intercropping Systems under Organic Farming Conditions" Agriculture 11, no. 2: 99. https://doi.org/10.3390/agriculture11020099

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