Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 1
Written by Elena PARTAL, Catalin Viorel OLTENACU, Victor PETCU
Yield and quality are affected by several plant characters, environment and cultural practices. The researches were performed during the 2018-2020, in the experimental field of NARDI Fundulea and the aim of this study was to evaluate the effect of sowing date, plant density and climatic conditions on the yield and quality of maize. The experience comprised three different sowing dates (I - April 1, II – April 15 and III- May 1), using three maize hybrids (Iezer, Mostistea and F423) and three plant density (50 000, 60 000 and 70 000 plants/per hectare). The annual rainfall varied from year to year and the maximum production and quality of maize was maximized from medium plant density and earlier sowing dates, depending on the hybrid. The early sowing date led to increase of quality values, which was depending on climatic conditions. The results showed that yield and quality from maize was very significantly affected by year conditions, sowing date, plant density and hybrids, as well as by most interactions between these factors.
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