Results 21 to 30 of about 760 (143)

The best of two worlds: ecology and evolution of ambophilous plants

open access: yesBiological Reviews, Volume 98, Issue 2, Page 391-420, April 2023., 2023
ABSTRACT Ambophily, the mixed mode of wind and insect pollination is still poorly understood, even though it has been known to science for over 130 years. While its presence has been repeatedly inferred, experimental data remain regrettably rare. No specific suite of morphological or ecological characteristics has yet been identified for ambophilous ...
Stefan Abrahamczyk   +2 more
wiley   +1 more source

Competitive Interaction Between Sweet Sorghum with Weeds [PDF]

open access: yesPlanta Daninha, 2018
: The objective of this work was to determine the competitive interaction of sweet sorghum cultivars BRS 506, BRS509, and BRS 511 with biotypes of Alexandergrass and wild poinsettia. The adopted experimental design was the randomized block one, with four
L. GALON   +8 more
doaj   +1 more source

Competitive interaction and economic injury level of Urochloa plantaginea in corn hybrids [PDF]

open access: yesArquivos do Instituto Biológico, 2019
ABSTRACT Identifying the competitive ability of corn hybrids and the economic injury level (EIL) caused by Urochloa plantaginea is important for the adoption of integrated management of this weed. This work aims to evaluate the interference and EIL of U. plantaginea infesting corn hybrids.
Leandro Galon   +9 more
openaire   +3 more sources

Grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system [PDF]

open access: yesCiência Rural, 2019
: The aim of this experiment was to identify grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system (ICLS).
André Brugnara Soares   +4 more
doaj   +1 more source

Tillering dynamics of Alexandergrass pasture under nitrogen fertilization [PDF]

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
This study was carried out to evaluate the effect of nitrogen fertilization on tillering dynamics of Alexandergrass (Urochloa plantaginea (Link) Hitch) grazed by beef heifers in a rotational stocking grazing method.
T.L. Bergoli   +7 more
doaj   +1 more source

Phytosociological variability of weeds in soybean field [PDF]

open access: yesPlanta Daninha, 2014
Understanding spatial distribution of weeds in the crop enables to perform localized herbicide applications, increasing the technical and economic efficiency of operations and reducing environmental impacts.
A.L. Santi   +8 more
doaj   +1 more source

Forage intake by heifers on alexander grass (Urochloa plantaginea (Link.) Hitch) fertilized with different levels of nitrogen

open access: yesResearch, Society and Development, 2021
This work was conducted to study the efficiency of using nitrogen on Alexander Grass (Urochloa plantaginea (Link.) Hitch) through information about the characteristics of the pasture and forage intake of beef heifers. The experiment was carried out at the Federal University of Santa Maria (Universidade Federal de Santa Maria, UFSM) in Santa Maria, Rio ...
Érica Dambrós de Moura   +8 more
openaire   +2 more sources

Nível crítico de dano de papuã em feijão-comum [PDF]

open access: yesPlanta Daninha, 2013
Os objetivos do presente trabalho foram estimar níveis críticos de dano de papuã (Urochloa plantaginea) em feijão-comum, em situações onde a planta daninha foi manejada precocemente e ocorreu reinfestação, e avaliar as alterações que sofre em decorrência
A. Kalsing, R.A. Vidal
doaj   +1 more source

Assessment of the nutritional status of grassland: nitrogen nutrition index

open access: yesSemina: Ciências Agrárias, 2014
The aim of this study was to assess the Nitrogen Nutrition Index (NNI) of an Urochloa plantaginea pasture submitted to different nitrogen (N) levels and forage mass (FM) through dilution curve model.
Laércio Ricardo Sartor   +4 more
doaj   +1 more source

Produção de palha e forragem por espécies anuais e perenes em sucessão à soja. [PDF]

open access: yes, 2010
O objetivo deste trabalho foi avaliar a produção de palha e de forragem por forrageiras anuais e perenes implantadas em sucessão à cultura da soja, e seus efeitos sobre a produtividade de grãos da cultura no próximo cultivo.
ASSIS, P. G. G. de, MACHADO, L. A. Z.
core   +3 more sources

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