2 results

Grazing intensity and nitrogen fertilization timing to increase soil organic carbon stock and nitrogen in integrated crop-livestock systems

Talyta Zortéa ORCID logo , Tangriani Simioni Assmann ORCID logo , Carolina Riviera Duarte Maluche Baretta ORCID logo , Andre Brugnara Soares ORCID logo , Juliana Aparecida Marchetti ORCID logo , Rafaela Dulcieli Daneluz Rintzel ORCID logo , [...]

07/Dec/2023

ABSTRACT Integrated crop-livestock systems (ICLS) foster synergistic relationships to increase nitrogen (N) cycling and soil organic carbon (SOC) accrual in agricultural setups. This study evaluated how the grazing intensity and N fertilization (rates and timing) affect both SOC and N fractions, and soil organic matter chemical composition in an ICLS managed under no-tillage in an Oxisol, six years after initiation. The ICLS was compared to a nearby pasture (PA) and a native forest (NF). The treatments consisted of two grazing […]

Visual Abstract

Crop residue decomposition and nitrogen release in single and mixed cover crops

C. Aita, S. J. Giacomini

01/Aug/2003

Dynamics of decomposition and nitrogen (N) release of cover crop residues in mixed and single cultures was evaluated in a field experiment. The following materials were used: (a) black oat (Avena strigosa Schieb); (b) common vetch (Vicia sativa L.); (c) oilseed radish (Raphanus sativus L. var. oleiferus Metzg.); (d) 32 % black oat + 68 % common vetch, and (e) 51 % black oat + 49 % common vetch. To monitor the residue decomposition, air-dried plant material was inserted in 0.5 mm mesh nylon-bags (0.2 […]