Results 71 to 80 of about 47,454,833 (212)

Disponibilidade de nutrientes de uma formulação de fertilizante vitreo. [PDF]

open access: yes, 2023
Fertilizantes vítreos (FV) são potenciais fontes de liberação lenta de nutrientes para as plantas, pois podem ser formulados para apresentar uma menor taxa de dissolução, além de conter múltiplos ...
MANZANI, D.   +6 more
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Mapping the density of giant trees in the Amazon

open access: yesNew Phytologist, Volume 249, Issue 1, Page 152-168, January 2026.
Summary Tall trees (height ≥ 60 m) are keystone elements of tropical forests, strongly influencing biodiversity, carbon storage, and ecosystem resilience. Yet, their density and spatial distribution remain poorly quantified, especially in remote Amazonian regions, limiting our understanding of their ecological roles and contribution to forest–climate ...
Robson Borges de Lima   +20 more
wiley   +1 more source

Can induced drying modulate the response of leaf litter decomposition and fungal diversity to wastewater effluents in permanent streams?

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3543-3555, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Watercourses are among the most threatened ecosystems globally and face multiple anthropogenic stressors of different origins and intensities that reduce biodiversity and disrupt ecosystem functioning.
Manuel Pinilla‐Rosa   +6 more
wiley   +1 more source

Indagamos sobre los nutrientes de algunos alimentos [PDF]

open access: yes, 2022
El presente trabajo comprende una clase modelo del área Ciencia y Tecnología para estudiantes del IV ciclo para el 3er grado de educación primaria, que aborda el tema INDAGAMOS SOBRE LOS NUTRIENTES DE ALGUNOS ALIMENTOS y lograr la competencia Explica El
Ospino Rosas, Silvia Epifania
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Root and shoot development, nutrition and uptake efficiency of macronutrients and zinc by upland rice cultivars as affected by phosphorus fertilization
Desenvolvimento radicular e aéreo, nutrição e eficiência de absorção de macronutrientes e zinco por cultivares de arroz de terras altas afetadas pela adubação fosfatada

open access: yesSemina: Ciências Agrárias, 2013
In Brazil, phosphorus availability is one factor that that more limit yield of upland rice under rainfed system. Then, better understanding of cultivars development at phosphorus soil fertilization is very important in the production systems making this ...
Carlos Alexandre Costa Crusciol   +3 more
doaj   +1 more source

Plasticidad fenotípica de Pinus pinaster frente a la disponibilidad de nutrientes

open access: yes, 2012
Este trabajo se ha realizado al amparo del Proyecto de Investigación INIA-RTA05-173.
Martíns, Patricia   +2 more
openaire   +1 more source

Disentangling seed availability and establishment filters at alpine treelines through a decade‐long field manipulation

open access: yesJournal of Ecology, Volume 113, Issue 12, Page 3830-3844, December 2025.
Treeline advance under warming occurs only when multiple filters align—adequate seed supply, favourable microclimatic windows, moderated herbivory and shrub effects that remain facilitative rather than competitive. Abstract Climate warming is expected to increase upslope shifts of alpine treelines globally.
Wentao Lin   +2 more
wiley   +1 more source

Extração e exportação de nutrientes pelo feijoeiro adubado com nitrogênio, em diferentes tempos de implantação do sistema plantio direto

open access: yesRevista Brasileira de Ciência do Solo, 2013
O cultivo do feijoeiro em sistema plantio direto (SPD) tem aumentado de forma marcante no país. Neste contexto, para adubações mais racionais, é fundamental conhecer as exigências nutricionais da cultura quando cultivada em SPD recém-implantado ou ...
Adelson Antonio Guidolin Perez   +3 more
doaj   +1 more source

Effects of nitrogen deposition on territory numbers of breeding birds

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Deposition of atmospheric N (nitrogen) is assumed to be a major cause of biodiversity decline in Europe. To date, few studies on the direct or indirect effects of N on bird species have been conducted. Using Swiss bird count data and habitat data, we analyzed the correlation of N deposition with numbers of territories of 112 breeding bird ...
Kim Meichtry‐Stier   +3 more
wiley   +1 more source

Dinâmica de atributos físicos e químicos em solo sob plantio direto adubado com dejetos suínos e uréia [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Agroecossistemas, Florianópolis, 2009O uso de dejetos de suínos na cultura do milho em regiões produtoras de suínos é uma prática ...
Dortzbach, Denilson
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