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2019, N 1 (35) |
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GENERAL AGRICULTURE, PLANT GROWING
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Usanova Z., Drozdov I., Pavlov M. |
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Productivity of white mustard on sod – podzolic soil in the aftereffect of topinambur fertilizers |
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There are results of studies performed in two-factor field experiment on sod – podzolic light loamy soil to study the effects of calculated doses of fertilizers (40 t/ha of tubers with an appropriate number of tops) on the yield of Jerusalem artichoke (Helianthus tuberosus L.) (2014 - 2015) and their residual effect on yield of white mustard (Sinápis alba L.) (2015 - 2016). It is shown that the placement of white mustard in the crop rotation after Jerusalem artichoke allows to realize the untapped potential of fertilizers. In arid 2014, low crop increments of Jerusalem artichoke from fertilizers were obtained: tubers 20.8-22.4 %, tops 14.2 – 17.0 %, which caused an increase in the content of nutrients in the soil after harvesting the crop and the subsequent increase in the yield of white mustard in 2015 (103.4-136.2 %). The increase in moisture intake in 2015 provided a more complete implementation of fertilizers and significant increases in the yield of Jerusalem artichoke (tubers 41,6 – 75,5 %, tops – 46,9 – 62,7 %), as a result, decreased the content of nutrients in the soil after harvesting the crop and the yield of white mustard in 2016 (increase from fertilizers – 34,2 – 39,8 %).
Keywords: JERUSALEM ARTICHOKE, GIRASOL, WHITE MUSTARD, FERTILIZER, MINERAL NUTRITION BACKGROUND, AFTEREFFECT, NITROGEN, PHOSPHORUS, POTASSIUM |