The effect of seeding rates on the germination of field pea and spring barley in mixed crops
Abstract
Purpose. To establish the dependence of the germination of field peas and spring barley on seeding rates when grown together. Methods. The study employed a comprehensive set of field, laboratory, laboratory-field, and statistical methods. The germination of field peas and spring barley was evaluated under different seeding rates and component ratios in mixed stands. Results. The effect of seeding rates on the germination of field peas and spring barley in mixed stands was investigated. The influence of component ratios on the initial growth and development of the plants was analyzed. It was established that mixed sowing of spring barley and field peas at a ratio of 40:60% resulted in the highest average germination rate of the crops – 87.96%. Under this treatment, the germination rate of field peas was 92.59%, whereas the germination rate of spring barley was lower than in the pure stand, where this indicator reached 84.44%. A positive trend in pea germination with increasing seeding rate was identified. At the same time, higher germination rates of spring barley were observed in the absence of competition from field peas. The 50:50 and 60:40 combinations were characterized by lower average germination rates. The obtained results demonstrate the importance of optimizing seeding rates and crop ratios in mixed stands. Mixed stands create conditions for improved weed control and more efficient use of agroecosystem resources. Conclusions. The study established the importance of selecting optimal seeding rates and component ratios when growing field peas and spring barley in mixed stands. The highest average germination rate of the crops was obtained at a ratio of 40% spring barley and 60% field peas. Optimization of seeding rates contributes to improved germination indicators and creates conditions for increasing yield and the fodder productivity of plant raw materials.
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