Buscar
Mostrando ítems 1-10 de 248
Water Erosion Prediction Using the Revised Universal Soil Loss Equation (RUSLE) in a GIS Framework, Central Chile
(Instituto de Investigaciones Agropecuarias, INIA, 2010)
Cover crops and controlled-release urea decrease need for mineral nitrogen fertilizer for cotton in sandy soil
(Elsevier B.V., 2022-02-01)
Cover crops can affect nitrogen fertilization efficiency, soil nitrogen content, and cotton yield. However, the interaction effects of controlled-release nitrogen fertilizers, applied N rate, and cover crops on cotton ...
Effects of soil texture and rates of K input on potassium balance in tropical soil
(Wiley-Blackwell, 2017-09-01)
The efficiency of potassium (K) fertilizer use is important in sustainable agriculture and is affected by losses related to soil texture. However, there is no information on how much K is lost by leaching in tropical soil. ...
Early development and nutrition of cover crop species as affected by soil compaction
(Marcel Dekker Inc, 2003-01-01)
A good cover crop should have a vigorous early development and a high potential for nutrient uptake that can be made available to the next crop. In tropical areas with relatively dry winters drought tolerance is also very ...
Spatial and temporal variability in soil CO2-C emissions and relation to soil temperature at King George Island, maritime Antarctica
(2010-12-01)
Few studies have examined the effects of temperature on spatial and temporal trends in soil CO2-C emissions in Antarctica. In this work, we present in situ measurements of CO2-C emissions and assess their relation with ...
Evaluation of potentially available nitrogen by biological and chemical methods in soil cultivated with maize in succession to cover crops
(2022-01-01)
Estimating mineralization rates is one of the best ways to predict N availability over time. However, different methods can lead to distinct predictions, especially when different production systems are used. The aim of ...
Agronomic performance of soybean grown in succession to winter cover crops
(Empresa Brasil Pesq Agropec, 2018-08-01)
The objective of this work was to evaluate the effect of winter cover crop species on the agronomic performance of soybean (Glycine max) cropped in succession, under a no-tillage system. The study was conducted during three ...
Produção de tapetes de grama Santo Agostinho submetida a doses de nitrogênio
(Universidade Estadual de Londrina (UEL), 2012-01-01)
Nitrogen is the nutrient that provides the greatest turfgrass growth responses and the adequate nitrogen fertilization can provide sod formation in less time and firm to be handled after harvest. This study aimed to evaluate ...
Soil aggregation according to the dynamics of carbon and nitrogen in soil under different cropping systems
(Empresa Brasil Pesq Agropec, 2016-09-01)
The objective of this work was to evaluate total soil carbon and nitrogen, as well as their contents in particulate and mineral-associated C fractions; to determine C stock and sequestration rates in the soil; and to verify ...
Phosphorus analysis in soil under herbaceous perennial leguminous cover by nuclear magnetic spectroscopy.
(Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 6, p. 589-596, junho 2004., 2011)