Results 21 to 30 of about 115,355 (213)

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

open access: yesPesquisa 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   +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

open access: yesRevista 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   +4 more
doaj   +1 more source

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

open access: yesPesquisa 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   +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

open access: yesAgriculture, 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   +3 more
doaj   +1 more source

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

open access: yesPlants, 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   +4 more
doaj   +1 more source

Spatial Variation in Soil Fungal Communities across Paddy Fields in Subtropical China

open access: yesmSystems, 2020
Fungi underpin almost all terrestrial ecosystem functions, yet our understanding of their community ecology lags far behind that of other organisms. Here, red paddy soils in subtropical China were collected across a soil depth profile, comprising 0-to-10-
Pengfa Li   +7 more
doaj   +1 more source

Coupling Bacterial Community Assembly to Microbial Metabolism across Soil Profiles

open access: yesmSystems, 2020
Soil microbial community assembly is crucial for understanding the mechanisms of microbial communities that regulate ecosystem-level functioning. The relative contributions of stochastic and deterministic processes to microbial community assembly remain ...
Lu Luan   +6 more
doaj   +1 more source

Effect of Long-Term Organic Amendment Application on the Vertical Distribution of Nutrients in a Vertisol

open access: yesAgronomy, 2022
Soil nutrients in deep soils are important for nutrient cycling and plant growth. Organic amendments have been widely used for enhancing soil health and crop yield.
Yu Zhang   +7 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

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