Results 61 to 70 of about 1,058 (188)

Relação entre pressão e volume para implantação da técnica in vitro semi-automática de produção de gases na avaliação de forrageiras tropicais

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003
O trabalho teve como objetivo demonstrar o procedimento inicial para a instalação da técnica in vitro semi-automática de produção de gases em diferentes laboratórios, ou seja, estabelecer uma equação que estime o volume (V) de gases produzidos no ...
Maurício R.M.   +3 more
doaj  

Estudio de la diversidad de leguminosas nativas de la subfamilia Papilonoideae, promisorias como cultivos supresores de malezas en agroecosistemas citricolas orgánicos de Yateras, Cuba [PDF]

open access: yes, 2009
El desarrollo de la citricultura orgánica en Cuba comprende entre tantos aspectos, el manejo de las arvenses asociadas en esos agroecosistemas. Dentro de las estrategias actuales para este fin, se encuentra el empleo de cultivos de coberturas supresores ...
Cueto, Jorge R.   +4 more
core  

Suscetibilidade de Merremia cissoides, Neotonia wightii e Stizolobium aterrimum aos herbicidas amicarbazine, imazapic e sulfentrazone [PDF]

open access: yes, 2016
Three experiments were developed with the goal to evaluate the susceptibility of Merremia cissoides, Neonotonia wightii and Stizolobium aterrimum to the amicarbazone, imazapic and sulfentrazone herbicides, by means of rate-response curves.
Campos, Luiz Henrique Franco   +3 more
core   +2 more sources

Forage production and quality of tropical forage legumes submitted to shading

open access: yesCiência Rural
: Find shade-tolerant species is essential to the success of silvopastoral systems, increasingly frequent in recent years. In legumes, which have potential of biological nitrogen fixation, there is a great lack of knowledge when in shaded environments ...
Fábio Nunes Lista   +4 more
doaj   +1 more source

Phytoseiid mites are bio-indicators of agricultural practice impact on the agroecosystem functioning: The case of weed management in citrus orchards [PDF]

open access: yes, 2010
n tropical conditions, the weed management in citrus orchards is particularly problematic when the fields are not mechanized. To reduce competition between trees and weeds, the producers use herbicides in excess of the permitted annual dose, particularly
Bockstaller, Christian   +7 more
core  

Evaluación del potencial nutricional de cuatro plantas forrajeras para la alimentación de reproductoras cunículas (Nota técnica) Evaluation of the nutritional potential of four forage plants for feeding rabbit does (Technical note)

open access: yesPastos y Forrajes, 2012
Se realizó un experimento de 100 días de duración, con el objetivo de determinar el potencial nutricional del forraje de morera (Morus alba Linn.), ramié (Boehmeria nivea L.
O López, I. L Montejo, L Lamela
doaj  

An agroecological approach to alleviate the impact of nematodes in banana cropping systems [PDF]

open access: yes, 2008
For many decades, control of plant-parasitic nematodes and in particular of the worldwide species Radopholus similis was mainly based on chemical nematicides not fully safe for the environment and human health.
Bouamer, Salah   +6 more
core  

Evaluation de 6 variétés de mangue : bilan de 4 années d'expérimentation sur un mode de production biologique. [PDF]

open access: yes, 2010
Les surfaces cultivées de manguier en Guadeloupe reste encore faibles. Paradoxalement ceci s'explique par la popularité de la variété 'Julie'. Celle?ci est en effet très fréquemment plantée dans les jardins ayant pour conséquence, qu'en saison de ...
Calabre, Corinne   +3 more
core  

Organic Agriculture in Cuba: Managing with Limited Resources [PDF]

open access: yes, 2009
The typical Cuban farming units are large-scale cooperatives, in which farming families are more or less loosely organized. In the low lands, these cooperatives normally specialize in a few products for the market and a higher diversity of self ...
Kilcher, Lukas
core  

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