Вплив агрофонів живлення на врожайність і якість зерна гібридів кукурудзи

Abstract

On the overage over the years of agroecological variety trials maize hybrids Kharkovskiy 311 MV and Anasta gave a maximal grain yield of 7,06 t/ha and 6,94 t/ha respectively.
Maximal grain yield was obtained by a full system of fertilizers application (manure – 30 t/ha + N₆₀P₆₀K₆₀), that is, 8,35 t/ha for Kharkovskiy 311 MV.
The results of biochemical investigations showed that grain protein content had been increased at  organic matters application at the rate of 30 t/ha of manure and while applying the full system of mineral fertilizers at the rate of 30 t/ha + N₆₀P₆₀K₆₀ and as to starch content there was a tendency for its reduction.
A maximum protein yield at manure application rate of 30 t/ha and full system of mineral fertilizers – 30 t/ha of manure  + + N₆₀P₆₀K₆₀ was 0,62 t/ha and 0,80 t/ha, respectively in Kharkovskiy 311 MV .
The hybrid Monaliza had a minimum protein yield of 0,45 t/ha at the manure  application rate of 30 t/ha and Kharkovskiy 195 MV – 0,49 t/ha at the full system of mineral fertilizers application