Экономическая и энергетическая эффективности применения жидких азотных удобрений при возделывании яровой пшеницы
2011
Gest, G.A. | Ganusevich, A.G., Grodno State Agrarian Univ. (Belarus)
In the conditions of the Republic of Belarus there was presented an economic substantiation of efficiency of application of new forms of liquid nitrogen fertilizers with trace elements addition, biologically active substances and complex fertilizers of chelate group on growth and development, as well as formation of yielding capacity and grain quality of spring wheat (Triticum aestivum) of Rassvet variety. Research was realized in 2006-2008 in course of field experiment on sod-podzolic light loamy soil: in 2006 - on seed-trial ground Grodno Agrarian University, in 2007-2008 - at a production plot in Grodno district of Belarus. The total area of allotments in field experiments made 48 m2 (2006), 36 m2 (2007) and 39 m2 (2008). The registration area of allotments respectively has made 35, 25 and 30 m2. Frequency in all years of researches was 4-fold. Influence of liquid nitric fertilizers on the basis of KAS, enriched with trace elements and growth regulators made it possible to increase the yielding capacity of spring wheat at 6-7 centner/hectare, profitability level - on 25-29%, bioenergetics coefficient - on 1,2 units. The specific attention is deserved by a variant N60+30 with Cu3+Mn1+Ehpin+P55K120, in which there was marked the yielding capacity of 56,9 centner/ha, productivity level of 67%, bioenergetics coefficient - 9,5 units.
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