6 research outputs found
The efficiency of nitrogen fertilizer on the dry matter yield of tall fescue and festulolium grown as feedstock for combustion
ArticleGrass biomass grows during one vegetation season and can be cultivated and consumed
at the place of breeding. Grass biomass can be used not only in traditional feed, but, recently, also
for energy production (biogas, solid fuels). The most important economic indicator for any crop
is its productivity. The study found that it is important to use nitrogen fertilizer to increase the
productivity of tall fescue and festulolium. A significant increase (p < 0.05) in the yield of tall
fescue was observed starting from the nitrogen norm of 60 kg ha-1 N. Further increase in nitrogen
fertilizer norm provides a significant increase in dry mater yield of tall fescue (reaching
8.64 t ha-1
) and festulolium (reaching 8.11 t ha-1
) at 180 kg ha-1 N. The analysis of linear
regression coefficients of polynomials showed that the highest nitrogen efficiency in the first year
of the use of tall fescue was achieved at the norm of 180 kg ha-1 N, but for festulolium – at the
norm of 120 kg ha-1 N. In the following years of tall fescue use, the highest efficiency of nitrogen
norms differed: in the 2nd and 4th year of use – at 60 kg ha-1 N, in the 3rd year of use – at
30 kg ha-1 N, and in the 5th year of use – at 120 kg ha-1 N. In contrast, for festulolium, in the 2nd
year of use, the highest nitrogen efficiency was reached at the norm of 30 kg ha-1 N, and in the
3rd–5th year of use – at the norm of 60 kg ha-1 N
Evaluation of (E)-2-Chlorovinylsulfones as Novel Class of Cytotoxic Agents and Highly (E)-Stereoselective Addition of N-, S- And Se-Nucleophiles to (E)-2-Chlorovinylsulfones under Phase Transfer Catalysis Conditions
Novel phase transfer catalytic (PTC) method for the conjugate addition-elimination of N-, S- and Se-nucleophiles to (E)-2-chlorovinylsulfones has been developed. Products were isolated in yields up to 98%. (E)-2-Chlorovinylsulfones exhibit very high cytotoxicity against MG-22A and HT-1080 cancer cell line