Results 51 to 60 of about 2,220 (213)

Preliminary studies of pest constraints to cotton seedlings in a direct seeding mulch-based system in Cameroon [PDF]

open access: yes, 2009
The present study evaluated the pest constraints of an innovative crop management system in Cameroon involving conservation tillage and direct seeding mulch-based strategies.
Brevault, T., Guibert, H., Naudin, K.
core   +2 more sources

Adubação verde e alterações nas características químicas de um Cambissolo na região de Ji-Paraná-RO Green manure and changes on chemical characteristics of a soil in the Ji-Paraná-RO region

open access: yesActa Amazonica, 2010
A adubação verde promove benefícios nas características químicas, físicas e biológicas do solo. O trabalho avaliou o efeito da incorporação de diferentes adubos verdes nas características químicas de um Cambissolo háplico eutrófico.
Elaine Almeida Delarmelinda   +4 more
doaj   +1 more source

Assessment of Greenhouse Gas Emissions from Different Land‐Use Systems: A Case Study of CO2 in the Southern Zone of Ghana

open access: yesApplied and Environmental Soil Science, Volume 2018, Issue 1, 2018., 2018
The emission of greenhouse gases (GHGs) results in global warming and climate change. The extent to which developing countries contribute to GHG emissions is not well known. This study reports findings on the effects of different land‐use systems on GHG emissions (CO2 in this case) from two locations in the southern zone of Ghana, West Africa. Site one
Dilys Sefakor MacCarthy   +6 more
wiley   +1 more source

SYMBIOTIC EFFECTIVENESS AND COMPETITIVENESS OF CALOPO RHIZOBIAL ISOLATES IN AN ARGISSOLO VERMELHO-AMARELO UNDER THREE VEGETATION COVERS IN THE DRY FOREST ZONE OF PERNAMBUCO

open access: yesRevista Brasileira de Ciência do Solo, 2015
Biological N fixation in forage legumes is an important alternative to reduce pasture degradation, and is strongly influenced by the inoculant symbiotic capability.
Altanys Silva Calheiros   +3 more
doaj   +1 more source

Agroforestry and the Improvement of Soil Fertility: A View from Amazonia

open access: yesApplied and Environmental Soil Science, Volume 2012, Issue 1, 2012., 2012
This paper discusses the effects of trees on soil fertility, with a focus on agricultural systems in Amazonia. Relevant literature concerning the effects of trees on soil physical and chemical properties in tropical, subtropical, and temperate regions is reviewed, covering both natural ecosystems and agroecosystems.
Rachel C. Pinho   +3 more
wiley   +1 more source

Agronomic characteristics and yield of organic maize straw intercropped with perennial green manures

open access: yesPesquisa Agropecuária Tropical, 2016
Maize intercropped with perennial green manure is an option to promote soil coverage, control weeds and recycle soil nutrients, in an organic system. This study aimed at evaluating the agronomic characteristics and yield of grains and organic maize straw
Ana Carolina Costa Arantes   +4 more
doaj   +1 more source

Asteraceae family: a review of its allelopathic potential and the case of Acmella oleracea and Sphagneticola trilobata

open access: yesRodriguésia, 2021
Asteraceae family is as an interesting target for researching natural alternatives for crop protection. Many species from this family grow as weeds, and some of them can influence the development of other species by the allelopathy phenomenon. This paper
Carolina Alves Araújo   +4 more
doaj   +1 more source

Wetlands invaded by Pneumatopteris afra (Christ.) Holttum are less diverse and more threatened than non-invaded ones in Nigeria [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
We compared the diversity indices of wetlands invaded by a fern, Pneumatopteris afra, and those that were not invaded. Six wetlands chosen for this study were each the size of 500×500 m2 which included 3 invaded and 3 non-invaded wetlands.
Gbenga Festus Akomolafe   +1 more
doaj   +1 more source

Allelopathic Activity of the Hydrolate and Water Decoction of Brachiaria humidicola (Rendle) Plant Parts on the Germination of Four Tropical Leguminous Species

open access: yesInternational Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012
Knowledge of allelopathic interactions between grasses and legumes can contribute for the successful establishment of mixed tropical pastures in Brazil. The purpose of this work was to evaluate the allelopathic effect of the hydrolate and water decoction of Brachiaria humidicola (Rendle) plant parts (root, shoot, and seeds) on four tropical forage ...
Roberta Cristiane Ribeiro   +6 more
wiley   +1 more source

Comunidades de fungos micorrízicos arbusculares associados ao amendoim forrageiro em pastagens consorciadas no Estado do Acre, Brasil. [PDF]

open access: yes, 2019
O objetivo deste trabalho foi identificar e estimar a diversidade de comunidades de fungos micorrízicos arbusculares (FMAs) autóctones associados ao amendoim forrageiro (Arachis pintoi), em monocultivo e consorciado com outras forrageiras.
MIRANDA, E. M. de   +2 more
core   +1 more source

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