Nutrição mineral de Andropogon gayanus Kunth var. bisquamulatus (Hochst) Hack: II. recrutamento de micronutrientes

Níquel: el último de los micronutrientes esenciales

RESUMEN The knowledge about the role of Ni (Ni) in the nutrition, physiology and metabolism of the majority of crops is limited, whereas is considered to be an essential element for the higher plants starting from the 80’s of the twentieth century. The primary function of Ni in plants is defined in terms of its importance for the hydrolysis of urea; however, Ni may have an importance in other p...

Vaccination antirougeoleuse: Etude de l'immunité humorale chez les enfants Vaccinés de la région de Tunis

Parasites du sang de divers animaux de la region de Tehran

Mise en application des théories sur l'extraction de la toxine tétanique endocellulaire. C II. Action de la trypsine

Invasive Andropogon gayanus (gamba grass) is an ecosystem transformer of nitrogen relations in Australian savanna.

Invasion by the African grass Andropogon gayanus is drastically altering the understory structure of oligotrophic savannas in tropical Australia. We compared nitrogen (N) relations and phenology of A. gayanus and native grasses to examine the impact of invasion on N cycling and to determine possible reasons for invasiveness of A. gayanus. Andropogon gayanus produced up to 10 and four times more...