The effect of nitrogen fertilizer on the yield, structure and quality of quinoa (Chenopodium quinoa)

Abstract

Field experiments were conducted in 2021-2022 at the Russian State Agricultural Academy named after K.A. Timiryazev (Moscow). The reaction of quinoa varieties (Chenopodium quinoa Willd.) to the use of various doses of nitrogen fertilizers was studied. The effect of nitrogen doses N60, N120, as well as the timing and frequency of their application on yield, crop structure, payback of nitrogen fertilizers when applied to culture and protein content in grain in agroecological conditions of the Central region of Russia has been established. Studies have shown that quinoa forms a higher yield and accumulates more protein in the grain when using nitrogen fertilizers. The use of fertilizers in a dose of N120 for fertilizing plants provides an average of 2.32 t, 2.50 t and 3.02 t/ha of Regalon, Vanilla Cherry and Titicaca grain varieties, respectively, for two years.