Эффективность борных удобрений в технологиях возделывания сельскохозяйственных культур при разной обеспеченности дерново-подзолистой супесчаной почвы бором
2011
Rak, M.V. | Barshkova, E.N., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
In the conditions of the Republic of Belarus in course of the research there was studied the influence of various levels contents of water soluble boron in sod-podzolic loamy sand soil, doses and forms of boric fertilizers on yielding capacity of different agricultural crops: oil flax (Linum usitatissimum); sugar beet (Beta vulgaris var. saccharifera); barley (Hordeum vulgare); rape (Brassica napus); potato (Solanum tuberosum). The research of crop topdressing by boric fertilizer was realized in 2006-2010 in a 'Suvorov experimental station' (Uzda district). Agrochemical characteristics of arable horizon: pH KCl – 5.7-6.4, P2O5 content (0.2 M HCl) - 205-280, K2O (0.2 M HCl) – 255-312 mg/kg of soil, humus content – 2.4-2.9%. Initial content of mobile boron in an arable horizon was 0.28-0.35 mg/kg of soil. As a result of realized research it was revealed that efficiency of boric fertilizers varied and depended on the level boron content in soil. Increase of sod-podzolic loamy sand soil supply with boron from 0.26 to 1.00 mg/kg provided increase in productivity and quality of flax seeds and rape, root crops of sugar beet, potato tubers. A liquid organo-mineral fertilizer Mikrostim-boron had advantage in comparison with boric acid.
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