Cultivation of cover crops in the off-season and use multifunctional microorganisms are strategic technologies to ensure sustainability upland rice production. The objective this work was determine effect mix cultivated on growth promotion plants, under no-tillage systems conducted Brazilian Cerrado. experimental design a complete randomized blocks 6x2 factorial scheme with four replications. t...

Phosphorus (P) plays an important role in the physiological plant processes; however, tropical soils, P is one of most limiting nutrients for crop yield due to its low mobility, determined by adsorption this element soil. To enhance P-use and P-acquisition efficiency, research aimed evaluate effect cover crops mycorrhizal colonization on changing soil fractions, both organic inorganic. A comple...

ABSTRACT Cover crops can provide suppression of weeds and together with chemical control make the proper management in agricultural areas. The objective this study was to evaluate effect cover crop cultivation during off-season on weed development a no-tillage area. experimental design randomized blocks scheme six treatments four replications. were: fallow (control), millet (Pennisetum glaucum)...

Sequestration of chemical defenses from host plants is a strategy widely used by herbivorous insects to avoid predation. Larvae of the arctiine moth Utetheisa ornatrix feeding on unripe seeds and leaves of many species of Crotalaria (Leguminosae) sequester N-oxides of pyrrolizidine alkaloids (PAs) from these host plants, and transfer them to adults through the pupal stage. PAs confer protection...