Results 31 to 40 of about 3,531,413 (300)

Three-dimensional mapping of soil organic matter content using soil type-specific depth functions [PDF]

, 2010
This paper proposes a method for mapping depth functions of soil organic matter (SOM) that combines general pedological knowledge with geostatistical modeling.
Brus, D.J., Stoorvogel, J.J., Kempen, B.
core   +1 more source

Levantamento do banco de sementes em dois sistemas de manejo de solo irrigados por pivô central Seeds bank assessment under two systems of management of soil irrigated by central pivot

Planta Daninha, 2005
Os objetivos desta pesquisa foram fazer o levantamento da população vegetativa e determinar o número de sementes viáveis e sua distribuição no perfil do solo em área sob dois sistemas de manejo de solo.
A.L.S. Lacerda, R. Victoria Filho, C.G. Mendonça   +2 more
doaj   +1 more source

Microbial Community and Functional Structure Significantly Varied among Distinct Types of Paddy Soils But Responded Differently along Gradients of Soil Depth Layers

Frontiers in Microbiology, 2017
Paddy rice fields occupy broad agricultural area in China and cover diverse soil types. Microbial community in paddy soils is of great interest since many microorganisms are involved in soil functional processes.
Ren Bai, Jun-Tao Wang, Ye Deng, Ye Deng, Ji-Zheng He, Ji-Zheng He, Kai Feng, Kai Feng, Li-Mei Zhang, Li-Mei Zhang   +9 more
doaj   +1 more source

Effect of long-term organic and mineral fertilisation on selected physico-chemical soil properties in rye monoculture and five-year crop rotation

Soil Science Annual, 2019
The research was carried out continuously since 1923 in a permanent fertilisation experiment at the Experimental Station of SGGW in Skierniewice. The objective of the research was to determine the effect of long-term fertilisation (Ca, CaNPK, NPK) and ...
Stępień Wojciech, Kobiałka Monika
doaj   +1 more source

Mechanical intervention and agricultural gypsum to mitigate the vertical gradient of cations under no-tillage system

Pesquisa Agropecuária Tropical, 2015
Agricultural gypsum has been suggested to enhance the soil chemical characteristics in depth for favoring the movement of some nutrients into lower soil layers.
Claudir José Basso, Lucindo Somavilla, Rodrigo Ferreira da Silva, Antônio Luis Santi   +3 more
doaj   +1 more source

Estrutura de um nitossolo vermelho latossólico eutroférrico sob sistema plantio direto, preparo convencional e floresta Evaluation of the structure of a eutroferric red nitosol under no-tillage, conventional tillage and forest

Revista Brasileira de Ciência do Solo, 2009
Alterações estruturais causadas no solo pelos sistemas de manejo podem resultar em compactação e interferir no desenvolvimento radicular das culturas. Com o objetivo de avaliar os influxos do tipo de manejo sobre a estrutura do solo, por meio de métodos ...
Mausy Marchel Marques Domingos, Nelson Vicente Lovatto Gasparetto, Paulo Nakashima, Ricardo Ralisch, João Tavares Filho   +4 more
doaj   +1 more source

Will European soil-monitoring networks be able to detect changes in topsoil organic carbon content? [PDF]

, 2008
Within the United Nations Framework Convention on Climate Change, articles 3.3 and 3.4 stipulate that some voluntary activities leading to an additional carbon (C) sequestration in soils could be accounted as C sinks in national greenhouse gas ...
Freudenschuß, Alexandra, PATRICIA H. BELLAMY, Üveges, Judit, NICOLAS P. A. SABY, Simota, Catalin, FRANK G. A. VERHEIJEN, CATALIN SIMOTA, Kibblewhite, Mark, JUDIT BERÉNYI ÜVEGES, Bernyi-Uveges, Judit, Verheijen, Frank G. A., Arrouays, Dominique, D., Kibblewhite, Mark G., XAVIER MORVAN, Morvan, Xavier, MARK G. KIBBLEWHITE, Bellamy, Patricia H., ANN VERDOODT, Saby, Nicolas, Saby, Nicolas, N., Verdoodt, Ann, DOMINIQUE ARROUAYS, Jones, Robert J. A., Bellamy, Patricia, Verheyen, Frank, Jones, Robert, ALEXANDRA FREUDENSCHUß, Arrouays, Dominique, Saby, Nicolas P. A., ROBERT J. A. JONES   +29 more
core   +1 more source

Quantificação de raízes metabolicamente ativas de cana-de-açúcar Quantification of sugarcane active metabolism roots

Pesquisa Agropecuária Brasileira, 2006
O objetivo deste trabalho foi desenvolver um método para determinar a distribuição e o desenvolvimento de raízes metabolicamente ativas de cana-de-açúcar no solo, por meio da técnica da diluição do isótopo 15N.
Carlos Eduardo Faroni, Paulo Cesar Ocheuze Trivelin   +1 more
doaj   +1 more source

Depth-Related Changes in Soil P-Acquiring Enzyme Activities and Microbial Biomass—The Effect of Agricultural Land Use/Plant Cover and Pedogenic Processes

Agriculture, 2022
Although the phosphatase enzymes regulate phosphorus (P) turnover throughout the soil profile, at present, they are rarely studied and are less well understood in the deeper soil layers than in the surface horizons. Hence the changes in P-associated soil
Jacek Długosz, Anna Piotrowska-Długosz, Anetta Siwik-Ziomek, Anna Figas   +3 more
doaj   +1 more source

Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil

Plants, 2023
Tea plants are widely planted in tropical and subtropical regions globally, especially in southern China. The high leaching and strong soil acidity in these areas, in addition to human factors (e.g., tea picking and inappropriate fertilization methods ...
Li Ruan, Xin Li, Yuhang Song, Jianwu Li, Kumuduni Niroshika Palansooriya   +4 more
doaj   +1 more source