Buscar
Mostrando ítems 31-40 de 6870
Potato yield and phosphorus nutrition using humic substances in two soil textures
(Empresa Brasil Pesq Agropec, 2020-01-01)
The objective of this work was to evaluate the effect of humic substances (HS) and phosphorus fertilizer on the growth. P uptake, tuber yield, fertilizer P recovery (FPR), and applied P-use efficiency (APUE) of potato ...
Tracing the mineral from the soil to the plant to the animal blood Part III—The Effect of Phosphorus and Lime on the Mineral Composition of the Soil and GrassTítulo en español.
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1949)
Nitrogen mineralization in two unpolluted old-growth forests of contrasting biodiversity and dynamics
(1998)
Studies in unpolluted, old-growth forests in the coastal range of southern Chile (42°30′S) can provide a baseline for understanding how forest ecosystems are changing due to the acceleration of nitrogen (N) inputs that has ...
Simultaneous competitive adsorption of heavy metals by the mineral matrix of tropical soils
(Applied Geochemistry, 2018)
Biochar effect on the mineralization of soil organic matter.
(Pesquisa Agropecuária Brasileira, v. 47, n. 5, p. 665-671, 2012., 2012)
Produção de composto orgânico a partir de residuos de plantas medicinais
(2003-04-01)
Extraction of active principles from medicinal plants generates wastes usually discharged. This process does not extract minerals from plant tissues, which may be considered of great value in organic composting. Wastes of ...
Nickel in soil and maize plants grown on an oxisol treated over a long time with sewage sludge
(Science Reviews 2000 Ltd, 2009-08-01)
The major limitation for the use of sewage sludge in agriculture is the risk of soil contamination with heavy metals, and their possible transference to man via the food chain. The objective of this study was to evaluate ...