"V\u00FDzkumn\u00FD \u00FAstav rostlinn\u00E9 v\u00FDroby, v.v.i." . . . "Practical solutions for managing optimum C and N content in agricultural soils IV" . . "Dlouhodob\u00E9 zm\u011Bny p\u016Fdn\u00ED organick\u00E9 hmoty v \u00FAhorov\u00E9m pokusu s r\u016Fzn\u00FDm hnojen\u00EDm a orbou"@cs . "Long-term changes of soil organic matter in the fallow experiment with different fertilization and tillage" . "Z(MZE0002700601)" . "978-80-213-1721-5" . "RIV/00027006:_____/07:2306" . "1"^^ . "RIV/00027006:_____/07:2306!RIV08-MZE-00027006" . . . "1"^^ . . "Long-term changes of soil organic matter in the fallow experiment with different fertilization and tillage" . . "Long-term changes of soil organic matter in the fallow experiment with different fertilization and tillage"@en . "431420" . . . . "2007-06-20+02:00"^^ . "157;166" . "Soil organic matter under different tillage and fertilization system of the long-term bare fallow experiment established in 1958 in Prague was characterized in the period of 1972-2006. This experiment consists of seven variants [control (no tillage, no manuring); farmyard manure compost (FYM); 2FYM; mineral fertilization (NPK); 2NPK; reduced tillage, no fertilizers (RT) and conventional tillage, no fertilizers (CT)]. In 1989, regular manuring and tillage were terminated and since then only weeds have still been removed mechanically. Organic carbon content (Cox ) was analysed and the hydrophobic (A) and hydrophilic (B) functional groups were determined using Fourier-transform infrared (FTIR) spectroscopy. Soil wettability (A/B ratio) was assessed in the experimental variants. Organic manuring (FYM and 2FYM plots) increased significantly Cox content and intensities of hydrophobic (A) functional groups in FTIR spectra as compared to the control variant. Highly significant positive correlations (r=0.9"@en . . . "Soil organic matter under different tillage and fertilization system of the long-term bare fallow experiment established in 1958 in Prague was characterized in the period of 1972-2006. This experiment consists of seven variants [control (no tillage, no manuring); farmyard manure compost (FYM); 2FYM; mineral fertilization (NPK); 2NPK; reduced tillage, no fertilizers (RT) and conventional tillage, no fertilizers (CT)]. In 1989, regular manuring and tillage were terminated and since then only weeds have still been removed mechanically. Organic carbon content (Cox ) was analysed and the hydrophobic (A) and hydrophilic (B) functional groups were determined using Fourier-transform infrared (FTIR) spectroscopy. Soil wettability (A/B ratio) was assessed in the experimental variants. Organic manuring (FYM and 2FYM plots) increased significantly Cox content and intensities of hydrophobic (A) functional groups in FTIR spectra as compared to the control variant. Highly significant positive correlations (r=0.9" . . "\u010Cesk\u00E1 zem\u011Bd\u011Blsk\u00E1 univerzita v Praze" . "Long-term changes of soil organic matter in the fallow experiment with different fertilization and tillage"@en . "Dlouhodob\u00E9 zm\u011Bny p\u016Fdn\u00ED organick\u00E9 hmoty v \u00FAhorov\u00E9m pokusu s r\u016Fzn\u00FDm hnojen\u00EDm a orbou"@cs . "long-term fallow experiment; soil organic carbon; FTIR spectra; hydrophobic (A) and hydrophilic (B) functional groups; soil wettability"@en . . "[434FAF4D13CD]" . "Praha 6 - Suchdol" . . "\u0160imon, Tom\u00E1\u0161" . . "10"^^ . . . "V obdob\u00ED let 1972-2006 byla v \u00FAhorov\u00E9m pokusu s r\u016Fzn\u00FDm hnojen\u00EDm a orbou zalo\u017Een\u00E9m v roce 1958 v Praze sledov\u00E1na p\u016Fdn\u00ED organick\u00E1 hmota. Tento pokus se skl\u00E1d\u00E1 ze sedmi variant [kontrola (bez orba a hnojen\u00ED); hnojen\u00ED kompostem (FYM); 2FYM; miner\u00E1ln\u00ED hnojen\u00ED (NPK); 2NPK; redukovan\u00E1 orba bez hnojen\u00ED(RT) a konven\u010Dn\u00ED orba bez hnojen\u00ED(CT)]. V roce 1989 bylo pravideln\u00E9 hnojen\u00ED a orba ukon\u010Deny a od t\u00E9 doby jsou pouze mechanicky odstra\u0148ov\u00E1ny plevely. Byl sledov\u00E1n obsah organick\u00E9ho C (Cox) a pomoc\u00ED FTIR spektroskopie byly stanoveny hydrofobn\u00ED (A) a hydrofiln\u00ED (B) funk\u010Dn\u00ED skupiny spektra. V pokusn\u00FDch variant\u00E1ch byla hodnocena p\u016Fdn\u00ED sm\u00E1\u010Divost. V porovn\u00E1n\u00ED s kontroln\u00ED variantou organick\u00E9 hnojen\u00ED (FYM a 2FYM) zv\u00FD\u0161ilo signifikantn\u011B obsah Cox a intensity hydrofobn\u00EDch (A) funk\u010Dn\u00EDch skupin ve FTIR spektru. Vysoce v\u00FDznamn\u00E9 pozitivn\u00ED korelace (r=0.969; p<0.05) byly stanoveny mezi hydrofobn\u00EDmi funk\u010Dn\u00EDmi skupinami (Band A) a obsahem Cox, hydrofiln\u00ED skupiny s Cox nekorelovaly. Po ukon\u010Den\u00ED hnojen\u00ED m\u011Bla p\u016Fdn\u00ED sm\u00E1\u010Divost tenden"@cs .