An experiment was carried out under greenhouse conditions at the Soil Science Department of the Universidade Federal de Lavras, Minas Gerais, Brazil, to determine critical levels of different phophorus fractions and acid phosphatase activity in bean plants (Phaseolus vulgaris L. cv. Carioca-MG); the relationship between these fractions and the acid phosphatase activity and grain production, and the relationship between acid phosphatase activity determined “in vivo” and “in vitro“. The plants were cultivated on four lowland soils of southern Minas Gerais, […]

The objective of this work was to evaluate the effects of molybdenum (Mo) leaf application in beans on leaf and grain concentration of Mo, total N, organic N and nitrate as well as the grain nutrient accumulation. Beans cv. “Ouro Negro” was cultivated at the Universidade Federal de Viçosa. Treatments consisted of increasing levels of Mo (0, 40, 80 and 120 g ha-1), using ammonium molybdate applied to the leaves 25 days after emergence. The experimental design was a randomized […]