Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 2
Written by Alexandra LEONTE, Simona Florina ISTICIOAIA, Paula PINTILIE, Adina Cătălina DRUȚU, Andreea ENEA, Sabina EȘANU

The experience was in the experimental field of the A.R.D.S. Secuieni, and it was a bifactorial experience, of the 5 x 5 type, in five repetitions so that A factor was represented by different doses of phosphorus (a1 - P₀; a2 - P₄₀; a3 - P₈₀; a4 - P₁₂₀; a5 - P₁₆₀ kg P₂ O₅/ha), and B factor was represented by different doses of nitrogen (b1 - N₀; b2 - N₄₀; b3 - N₈₀; b4 - N₂140; b5 - N₂160 ,kg N/ha). On average, during the ten years of testing, the productions varied within quite wide limits, from 6252 kg·ha_-1, in the variant in which no dose of fertilizer was applied (control - N₀P₀), and the maximum was recorded in the variant in which the dose of fertilizer administered was N₁₆₀P₁₆₀ active substance, whose production was 9319 kg·ha_-1. As for the protein content, it was different from one year to another, the minimum was obtained in the N₂0P₄₀ variant, in 2019, being 8.1%, and the maximum was obtained in the variant for which the applied dose of fertilizer was N₁₆₀P₁₂₀, with a protein content of 13.8%.

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