The effect of cropping and fertilizer management on soil humus content and composition
2005
Maiksteniene, S.(Lithuanian Inst. of Agriculture, Joniskelis, Pasvalys reg. (Lithuania). Joniskelis Research Station)E-mail:[email protected] | Arlauskiene, A.(Lithuanian Inst. of Agriculture, Joniskelis, Pasvalys reg. (Lithuania). Joniskelis Research Station)E-mail:[email protected] | Kristaponyte, I.(Lithuanian Inst. of Agriculture, Joniskelis, Pasvalys reg. (Lithuania). Joniskelis Research Station)E-mail:[email protected] | Slepetiene, A.(Lithuanian Inst. of Agriculture, Akademija, Kedainiai reg. (Lithuania))
Experiments were carried out on clay loam Endocalcari - Endohypogleyic Cambisol during 1995-2002 with a view to identifying the effects of legume crops and their biomass introducing for green manure and different fertilization systems - mineral, organic - mineral and organic on humus accumulation in the soil and its quality. It was revealed due to a longer period on soil dormancy and systematic introduction of necrotic fine rootlets that the highest content of humus and mobile humic acids were found in the soil after lucerne cultivation. Positive changes in humus were identified in all organic - mineral with the application of 40; 60 and 80 t haE-1 farmyard manure and organic - 80 t haE-1 fertilization systems compared with mineral fertilization systems.
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