Results 71 to 80 of about 24,521 (182)

The Effect of Nutrient Levels in Nutrient Cultures on the Translocation of Foliar Applied Nutrients

open access: yes, 1959
Since man first grew crops on calcareous soils he has probably been troubled with what we today call lime-induced chlorosis. This chlorosis has determined whether he grew certain desirable ornamentals or crops or whether he had to substitute others which were less desirable. Lime-induced chlorosis is spread world wide.
openaire   +2 more sources

Range‐wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub

open access: yesJournal of Ecology, Volume 112, Issue 7, Page 1533-1549, July 2024.
Despite strong specialization to gypsum soils, past divergent selection related to climatic gradients has driven adaptive population differentiation in Lepidium subulatum. All populations showed high but similar plasticity to drought, indicating that selection did not act against plasticity in harsh environmental conditions.
Mario Blanco‐Sánchez   +6 more
wiley   +1 more source

NORMAS DRIS E NÍVEIS CRÍTICOS DE NUTRIENTES PARA VIDEIRA ‘NIAGARA ROSADA’ CULTIVADA NA REGIÃO DE JUNDIAÍ-SP

open access: yesRevista Brasileira de Fruticultura, 2015
RESUMO São apresentadas normas DRIS preliminares e derivados níveis críticos de nutrientes no tecido foliar (NC) para a videira ‘NiagaraRosada’ enxertada sobre o porta-enxerto ‘IAC 766’, nas condições de cultivo da região de Jundiaí-SP.
LUIZ ANTONIO JUNQUEIRA TEIXEIRA   +4 more
doaj   +1 more source

Interpretação de resultados de análise foliar. [PDF]

open access: yes, 2011
Nesta publicação, são apresentados alguns métodos de interpretação da análise foliar e seus respectivos fundamentos teóricos. Espera-se que os aspectos abordados contribuam para o melhor entendimento desta importante ferramenta de avaliação do estado ...
ALVAREZ V. V. H.   +2 more
core  

Tree and mycorrhizal fungal diversity drive intraspecific and intraindividual trait variation in temperate forests: Evidence from a tree diversity experiment

open access: yesFunctional Ecology, Volume 38, Issue 5, Page 1089-1103, May 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The study of tree species coexistence is crucial to understand the assembly of forest communities. In this context, trees adjust their traits in response to the interactions with other trees and, specifically, as a result of the competition for resources.
Pablo Castro Sánchez‐Bermejo   +7 more
wiley   +1 more source

Definição da posição da folha de pimenta longa para avaliação do estado nutricional. [PDF]

open access: yes, 2017
Foram avaliadas quatro posições de amostragem de folhas de pimenta longa para fins de definição da amostragem mais adequados em estudos de nutrição de plantas desta espécie, visando subsidiar pesquisas com sua domesticação.
CATANI, V.   +4 more
core  

Pushing the limits of C3 intrinsic water use efficiency in Mediterranean semiarid steppes: Responses of a drought‐avoider perennial grass to climate aridification

open access: yesFunctional Ecology, Volume 38, Issue 4, Page 955-966, April 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Intrinsic water use efficiency (WUEi) reflects the trade‐off between photosynthetic carbon gain and water loss through stomatal conductance and is key for understanding dryland plant responses to climate change.
Wei Ren   +5 more
wiley   +1 more source

Geração de zonas de manejo para cafeicultura empregando-se sensor SPAD e análise foliar Coffee crop management zone delimitation using chlorophyll index and leaf analysis

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2011
Objetiva-se, com este trabalho, definir zonas de manejo para cafeicultura por meio dos métodos K-Means e Fuzzy C-Means, com base em determinações realizadas com sensor de clorofila e por análise foliar, e avaliar as zonas de manejo obtidas usando-se os ...
Francelino A. Rodrigues Junior   +3 more
doaj   +1 more source

CARACTERIZACIÓN DE LOS SÍNTOMAS VISUALES DE DEFICIENCIAS NUTRICIONALES DE PLÁNTULAS DEL ROBLE ANDINO EN INVERNADERO

open access: yesAgronomía Costarricense, 2014
La identificación de síntomas visuales de deficiencias es un método muy utilizado en el diagnóstico de problemas nutricionales en la producción agrícola y forestal.
Yira Lucia Sepúlveda   +4 more
doaj  

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