TY  - JOUR
T1  - HUMUS CONTENT AND HUMUS FRACTIONS AFTER LONG-TERM SYSTEMIC MINERAL AND ORGANIC-MINERAL FERTILIZATION ON MOLLIC FLUVISOLS
TT  - SIMEO OVA* S. TODOROVA
AU  - Sımeonova, N.
AU  - Todorova, S.
PY  - 2010
DA  - August
DO  - 10.7161/anajas.2010.25.2.142-147
JF  - Anadolu Tarım Bilimleri Dergisi
JO  - ANAJAS
PB  - Ondokuz Mayıs Üniversitesi
WT  - DergiPark
SN  - 1308-8750
SP  - 142
EP  - 147
VL  - 25
IS  - 2
LA  - en
AB  - The present work studies the effect of long-term systemic mineral and organic-mineral fertilization on the humus amount, humus type and humus fractions on Mollic fluvisols in Plovdiv region. Fertilizer norms are 1) N75P30K20; 2) N25P15K0 + organic; 3) N50P0K20 and 4) Standard. It was found that long-term systemic mineral and organic-mineral fertilization (forty-seven years) has a stabilized effect on humus content in studied soils. The systemic fertilization lead to a slight decrease of soil humus amount, although the fertilization was excluded since three years. The humus type – was not influenced from the long-term fertilization.
KW  - Humus
KW  - Humic acids
KW  - Fulvic acids
KW  - Humus type
KW  - Fertilization
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UR  - https://doi.org/10.7161/anajas.2010.25.2.142-147
L1  - http://dergipark.org.tr/tr/download/article-file/187793
ER  -