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Purpose. Determination of sowing time effect on productivity of various fenugreek species in the Forest-Steppe zone of Ukraine. Methods. Field study, laboratory test, analytical approach and statistical evaluation. Results. Effect of sowing time on economic characters of common fenugreek (Trigonella foenum graecum L.) and blue fenugreek (Trigonella coerulea (Desr.) Ser.) was investigated. It was found that sowing time significantly influenced the individual productivity of plants and average yield of their fresh and dry matter. In particular, common and blue fenugreek plants formed not only the most developed vegetation but also higher productivity and fresh and dry matter yield, respectively, due to early-spring sowing. In case of summer sowing, the poorest yield of dry matter per unit was obtained for these species caused by a low fresh yield, though the moisture loss index was lower. Conclusions. Common fenugreek is promising for producing “mushroom grass” spices, and the conveyor supply of production in the Forest-Steep zone of Ukraine can be ensured by the first sowing time (the first or the second decades of April) and the second sowing time (the third decade of April) as during this period more developed vegetation is formed that favored the higher yield of dry matter (1,3–1,5 t/ha).

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