Uptake of nutrients in triticale
1995
Gromova, Z. | Polacek, M. (Vysoka Skola Polnohospodarska, Nitra (Slovak Republic))
Climatic conditions and fertilization influence on the nutrient balance in triticale grain and straw were investigated. Trials were located in warm, moderately arid region with slightly acid, loamy brown soil, rich in P and K. Three levels of fertilization were investigated: A - without fertilization (control variant); B - 50 % NPK in mineral fertilizers and 50 % NPK in manure were applied; C - fertilization according to the complex diagnostic methodology. The average content of macronutrients was; 2.376 % N, 0.479 % P, 0.477 % K, 0.042 % Ca, 0.216 % Mg in grain and 0.466 % P, 1.146 % K, 0.275 % Ca, 0.133 % Mg in straw. In 1991 Mg content was the lowest in grain and especially in straw. In 1993 P content was the lowest in straw. In this year Ca and K contents were the lowest in grain. The smallest changes were observed in N content. One t of biomass exploited 24.4 kg N, 4.7 kg P, 13.9 kg K, 2.7 kg Ca and 3 kg Mg. The fertilization had no considerable influence on the consumption of nutrients by 1 t biomass. The consumption of nutrients by yield was significant and high significant according to the cultivation and climatic conditions. The considerable decrease in the yield and macronutrients consumption was observed in the very arid 1993 year. The yield (4.4 t per hectare) was about 40 % lower as in 1991 and 1992.
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