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Soil tillage and cover crop on soil CO2 emissions from sugarcane fields
(2019-06-01)
Soil tillage is an agricultural practice that directly affects the global carbon cycle. Our study sought to assess the implications of adopting sunn hemp cover crops with different tillage practices on CO2 emissions for ...
Teores de fósforo, potássio e produção de alface orgânica em diferentes coberturas do solo
(2009-05-01)
The objective of this research was to evaluate the effect of the soil covering with black oats straw, and soil covered with black plastic, in phosphorous and potassium content, and biomass production of lettuce in organic ...
Cover crops affecting levels of ammonium and nitrate in the soil and upland rice development
(Universidade Estadual de Londrina (UEL), 2013-01-01)
The use of cover crops in no-tillage systems (NTS) increases the levels of organic matter and could increase the nitrogen content of the soil, contributing to reduce fertilizers costs. The knowledge of these processes is ...
Soil compressibility and least limiting water range of a constructed soil under cover crops after coal mining in Southern Brazil
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
The use of cover crops affects the support capacity of soil and least limiting water range to crop growth. The objective of this study was to quantify preconsolidation pressure (sigma(p)), compression index (CI) and least ...
Cover crop effects on soils and subsequent crops in the pampas: A meta-analysis
(Elsevier Science, 2017-07)
Cover crops are a valuable management option for reducing soil erosion and nitrogen losses from agroecosystems. They improve soil quality but the impacts on crop yield depend on the type of cover crop, the commercial crop ...
Cobertura do solo, produção de biomassa e teores de mn e zn de alface no sistema orgânico
(2009-12-31)
The goal of this research was to evaluate the effect of soil covering with black oat straw, as well as soil covered with black plastic, on the production of biomass and levels of Mn and Zn in lettuce produced in an organic ...
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 ...
ESTIMATION OF THE FRACTION OF CANOPY COVER FROM MULTISPECTRAL DATA TO BE USED IN A WATER SOIL EROSION PREDICTION MODEL
(Universidad de Concepción.Facultad de Ciencias Naturales y Oceanográficas., 2004)
Soil carbon and nitrogen fractions and physical attributes affected by soil acidity amendments under no-till on Oxisol in Brazil
(2021-03-01)
No-tillage (NT) management has been one of the significant advances in Brazilian agriculture to enhance sustainability. However, weathered soils are acidic and may require amelioration to become more productive. Our objective ...
Alterações de propriedades físicas de um nitossolo vermelho pela sucessão milheto-soja na fase de implantação do sistema de semeadura direta
(2007-07-01)
The aim of this work was to evaluate the effect of a millet-soybean rotation, during the implantation phase of no-tillage system on the physical properties of a Nitossolo Vermelho distroférrico and the dry mass production ...