THE INFLUENCE OF N AND P FERTILIZATION ON WINTER WHEAT YIELD

Abstract

Wheat is an essential crop for global food security, and for good development and to achieve satisfactory yields wheat needs favorable climatic conditions and adequate nutritional support. Was executed a bifactorial experience, of the AxB model A - phosphorus doses: P₀; P₄₀; P₈₀; P₁₂₀; P₁₆₀ and B - nitrogen doses: N₀; N₃₀; N₆₀; N₉₀; N₁₂₀. The research carried out during the period 2020-2022 aimed to determine the optimal doses of the two nutrients for the autumn wheat crop in achieving the most efficient yields. Nitrogen is the factor with the greatest contribution to the formation of yield, an amount of 30 kg/ha s.a. can bring an increase in yield of 22%, growth that decreases with the additional application of others 30 kg/ha s.a. N. Phosphorus has a lower contribution to yield, as a unilateral factor, but it is important in plant nutrition, especially as a support for nitrogen.