Fertility Improvements Methods of Frozen Soil in Central Yakutia of Russian Federation
Maximova Haritina Ivanovna, Nikolaeva Valentina Semenovna, Pribylyh Evdokiya Ivanovna, Lukin Vladimir Nikolaevich
International Journal of Plant & Soil Science · pp. 359–364 · Published 14 Apr 2015
10.9734/IJPSS/2015/15630Abstract
The paper presents the results of field studies on methods of increasing the fertility of soils in permafrost conditions of Cryolithozone. It was established the effectiveness of the use of gypsum, green manure, as well as resource-saving tillage technology in the conditions of the permafrost zone, which increases the fertility of permafrost saline soils, which are poor in nitrogen and a low power humus layer. Adding gypsum at a dose of 4 t, 8 t, 12 t on saline soils contributes desolonetzization of soil in layer 0-40 cm, gypsum deposit options at a dose of 8-12 t/ha on a background of green manure and manure, soil alkalinity decreases from 8.56 to 7.54. At resource saving tillage technology observed preservation of productive moisture in frozen soils at 20-25% more than the recommended zonal tillage technology, reduced soil density from 1,23 g / m to 1.18 g / m3.
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