Results 91 to 100 of about 9,994 (165)

Growth and nutrient concentration in coffee root system under weed species competition Crescimento e concentração de nutrientes no sistema radicular do cafeeiro sob competição de plantas daninhas

open access: yesPlanta Daninha, 2007
The effects of competition of six weed species on growth, nutrient concentration and nutrient content of coffee plant root system under greenhouse conditions were evaluated. Thirty days after coffee seedling transplantation into 12 L pots with soil level
C.P. Ronchi, A.A. Terra, A.A. Silva
doaj   +1 more source

Eficácia do glyphosate e 2,4-d no controle de espécies de trapoerabas (Commelina spp.)

open access: yesBioscience Journal, 2011
O objetivo do presente estudo foi o de avaliar a eficácia do glyphosate e 2,4-D no controle das espécies de trapoerabas Commelina benghalensis, Commelina diffusa e Commelina erecta.
Neumarcio Vilanova da Costa   +3 more
doaj  

Estudio etnobotánico y evaluación citotóxica de extractos etanólicos de plantas de uso medicinal en Tlalchi, Ixhuacán de los Reyes, Veracruz, México

open access: yesRevista Biológico Agropecuaria Tuxpan, 2018
Las plantas medicinales son especies vegetales que contienen sustancias empleadas con propósitos terapéuticos y pueden servir de precursores para la síntesis de nuevos fármacos. En el presente trabajo se realizó un estudio etnobotánico y toxicológico de
Vianey del Rocío Torres Pelayo   +3 more
doaj   +1 more source

CRESCIMENTO DE CULTIVARES DE FEIJÃO SOB INTERFERÊNCIA DE TRAPOERABA

open access: yesRevista UniVap, 2017
O feijão comum (Phaseolus vulgaris L.) apresenta alterações na produtividade de grãos com interferência de plantas daninhas e também relacionada ao vigor das sementes utilizadas para plantio da cultura.
Lidiane dos Santos Gomes Oliveira   +4 more
doaj   +1 more source

Commelinadanxiaensis (Commelinaceae), a new species from Guangdong, China. [PDF]

open access: yesPhytoKeys, 2023
Wang LY   +8 more
europepmc   +1 more source

CRESCIMENTO INICIAL E CONCENTRAÇÃO DE NUTRIENTES EM CLONES DE Eucalyptus urophylla x Eucalyptus grandis SOB INTERFERÊNCIA DE PLANTAS DANINHAS

open access: yesCiência Florestal, 2016
The presence of weeds in eucalypt plantations, especially in the first two years, can result in losses of productivity because it reduces the efficiency of growth resource use by the crop. The objective of this study was to evaluate the effects of weed
Wilker Nunes Medeiros   +6 more
doaj  

Diversity of Commelinaceae in Laos and two new record species: Amischotolype glabrata Hassk., and Commelina maculata Edgew.

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca
The Commelinaceae diversity in Laos have been published, recorded 23 species belonging to nine genera, two species were the new record species in Laos namely Amischotolype glabrata, and Commelina maculata. The objective of this research was to study the
Anousone SENGTHONG   +3 more
doaj   +1 more source

Effect of Grazing on the Plant Community of a Southern Brazilian Swamp

open access: yesFloresta e Ambiente
Swamps have high biological diversity and are the largest producers of biomass. However, such ecosystems are threatened by human activities. This study analyzes the plant community structure of two swamp sites, with and without grazing.
Jaqueline Spellmeier   +4 more
doaj   +1 more source

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