NITROGEN AND PHOSPHORUS FERTILIZERS AFFECTING THE QUALITY AND QUANTITY OF THE DURUM WHEAT

Published in Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 1
Written by Stefka STEFANOVA-DOBREVA, Angelina MUHOVA, Bogdan BONCHEV

The experiment was based on the block randomized method in four replications, after cotton predecessor in Field Crops Institute, Bulgaria in the period 2018/19-2019/20. Were tested: N₄₀, N₈₀, N₁₂₀; N₁₆₀; P₄₀, P₈₀, P₁₂₀ and P₁₆₀. As a control variant was adopted N0P0. Based on the results obtained, we can conclude that the maximum nitrogen rate did not lead to the best results. The norm of 120 kg N ha was the most effective in most parameters – grain yield (76.2%); test weight (113.3%); grain vitreous (32.36%); gluten content (50.2%), respectively compared to the control. Thousand kernel weight was most affected by N₁₆₀ (13.3%). Protein content had the same values in N₁₂₀ and N₁₆₀ (35.1%), and this effect does not justify the high rate of N₁₆₀. Phosphorus fertilization showed a weaker effect for all studied traits, and grain yield did not have significantly higher values. The other parameters were most affected by fertilization with Р₈₀: thousand kernel weight (7.7%); test weight (2.0%); grain vitreous (9.69%); gluten content (22.3%), respectively. Protein content had the same values at Р₈₀ and Р₁₆₀ (9.0%).

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{simplepopup popup="false" name="Citation78"}STEFANOVA-DOBREVA S., MUHOVA A., BONCHEV B. 2022, NITROGEN AND PHOSPHORUS FERTILIZERS AFFECTING THE QUALITY AND QUANTITY OF THE DURUM WHEAT. Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 1, ISSN 2285-5785, 533-539. {/simplepopup}