Влияние обеспеченности дерново-подзолистой легкосуглинистой почвы обменным магнием на урожайность и качество зерна кукурузы | Effect exchangeble magnesium in the podzoluvisol loam soil on the yield and quality of corn grain
2012
Tavrykina, O.M. | Bogdevich, I.M. | Putyatin, Yu.V. | Tretyakov, E.S. | Dovnar, V.A. | Markevich, D.V., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
In course of the research there was studied influence of providing with exchangeable magnesium in sod-podzolic light loamy soil on yield and quality of maize (Zea mays) grain. The research was realized in the conditions of the Republic of Belarus in Minsk region in 2010-2011. The data of two years studies of grain maize yield in field experiment with exchangeable magnesium content in soil from low - 50 mg/kg-1 to high - 265 mg/kg-1 and varying K:Mg and Ca:Mg ratios 2.2-16.9:1 and 0.12-1.46:1 correspondingly was presented. It was found the highest grain yield -10.8-14.1 t/ha-1 at N110+30P60K120 application was obtained at Ca:Mg ratios 5.1-5.7 and exchangeable magnesium content 145-160 mg/kg-1. It was found that increasing of exchangeable magnesium content in soil from 50 up to 265 mg Mg/kg increased magnesium concentration in leaves of maize plants on growth stage of 6-8 leaves up to 1.7 times. At the same time concentration of nutrientes - calcium and potassium in maize plants leaves decreased with increasing of exchangeable magnesium content in soil.
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