THE INFLUENCE OF NITROGEN AND PHOSPHORUS FERTILIZATION ON MUSTARD YIELD

Abstract

The present study evaluated the variation of mustard yield under the singular influence and the interaction of fertilizers with nitrogen and phosphorus. The study was conducted at the Agricultural and Development Research Station Lovrin, Romania, in a two-factor experience (5N x 5P) in four repetitions. From the analysis of the obtained results it was found that N had a very significant influence on the yield, and the factor P had a significant action, and the interaction effect (NxP) was not statistically assured. The nitrogen contribution on the yield it was 24,9 %, the phosphorus was 14,7 %, and the NxP interaction was 60,8 %. In the conditions LSD_5%= 256.1 kg, LSD_1%= 342.7 kg and LSD_0.1%= 450.6 kg present significant increases in variants N₂₀₀P₀, N₁₅₀P₄₀, N₂₀₀P₄₀, N₁₅₀P₈₀, N₂₀₀P₈₀, N₁₅₀P₁₂₀, N₂₀₀P₁₂₀, N₁₅₀P₁₆₀ si N₂₀₀P₁₆₀ and distinct significant increases in variants N₁₅₀P₀, N₁₀₀P₄₀, N₁₀₀P₈₀, N₅₀P₁₂₀,N₅₀P₁₆₀, N₁₀₀P₁₆₀, significant increases in variants N₁₀₀P₀, N₅₀P₈₀, N₁₀₀P₁₂₀ and statistically uninsured increases in variants N₅₀P₀, N₀P₄₀, N₅₀P₄₀, N₀P₈₀, N0P₁₂₀ si N₀P₁₆₀.