Results 31 to 40 of about 443 (133)

Influence of sugarcane straw on weed germination control

open access: yesRevista de la Facultad de Ciencias Agrarias, 2021
This research studied the effectiveness of herbicide treatments in weed control and during different periods of emergence, when applied to varying amounts of straw.
Paulo Vinicius Da Silva   +7 more
doaj   +1 more source

Fusarium wilt–common bean pathosystem: Pathogen variability and genetic control

open access: yesCrop Science, Volume 63, Issue 5, Page 2609-2622, September/October 2023., 2023
Abstract Sustainable management of plant diseases has been a challenge in the effort to feed a human population that has increased substantially. One of the main diseases that affect common bean and dry bean is Fusarium wilt, caused by the fungus Fusarium oxysporum f. sp. phaseoli (Fop), which can cause losses of up to 100% in crop production.
Luciana L. Benchimol‐Reis   +3 more
wiley   +1 more source

Drought in Northeast Brazil: A review of agricultural and policy adaptation options for food security

open access: yesClimate Resilience and Sustainability, Volume 1, Issue 1, February 2022., 2022
The semiarid lands of Northeast Brazil NEB represent one of the most densely populated regions of the country. Rainfall variability together with land degradation and large‐scale poverty in rural areas make this region vulnerable to droughts in the present.
Jose A. Marengo   +9 more
wiley   +1 more source

Desempenho agronômico de Mucuna aterrima e Dolichos lablab em diferentes épocas de colheita

open access: yesCaderno Verde de Agroecologia e Desenvolvimento Sustentável, 2020
A Mucuna aterrima e Dolichos lablab são plantas de crescimento em condições adversas, as quais tem como finalidade de melhorar a estrutura e vida do solo. Objetivou-se avaliar o desempenho da Mucuna aterrima e Dolichos lablab em épocas de colheita. O estudo foi conduzido no Projeto de Assentamento Nossa Senhora de Fátima, Bananeiras-PB.
Shirley Santos Monteiro   +3 more
openaire   +2 more sources

Utilização de nitrogênio de adubos verde e mineral pelo milho

open access: yesRevista Brasileira de Ciência do Solo, 2000
Desenvolveu-se, na Estação Experimental de Piracicaba - Instituto Agronômico (SAA-SP), de março/94 a setembro/95, um experimento para avaliar o potencial de fornecimento de nitrogênio de adubos, verde e mineral, aplicados, de forma exclusiva ou combinada,
W. B. Scivittaro   +3 more
doaj   +1 more source

Influência do estádio fenológico da >i<Crotalaria juncea>/i< L. e da >Mucuna aterrima>/i< (Piper e Tracy) Holland. sobre a decomposicao da fitomassa e seu efeito fertilizante [PDF]

open access: yes, 2019
O objetivo deste trabalho foi avaliar a composição percentual de C e N e a relação C/N da Crotalaria juncea L. e da mucuna preta em função do seu desenvolvimento.
Ribeiro, Paulo Guilherme Ferreira
openaire   +2 more sources

Germination and initial growth of four cover crops as a function of liquid organic fertilization [PDF]

open access: yesBrazilian Journal of Biology
The application of compounds rich in humic substances in agriculture may improve the soil attributes and development of plants, but with unknown effects in seed germination, which may be inhibited or induced.
A. A. Fonseca   +6 more
doaj   +1 more source

Allelopathic potential of Cover Crops in Control of Shrubby False Buttonweed (Spermacoce verticillata) [PDF]

open access: yesPlanta Daninha, 2018
: Searching for alternatives to deal with weeds without the exclusive use of herbicides can increase the sustainability of agricultural production in the Amazon region.
L.A. VARGAS, A.M.A. PASSOS, D. KARAM
doaj   +2 more sources

EXTRACTION OF Mucuna aterrima SEED OIL USING COMPRESSED PROPANE AND QUANTIFICATION OF L-DOPA IN THE DEFATTED MEAL

open access: yesLatin American Applied Research - An international journal, 2015
The aim of this study was to extract the oil of Mucuna seeds using compressed propane as the solvent, in order to concentrate the L-Dopa content of the defatted Mucuna meal. The experiments were performed in a laboratory-scale unit with a constant propane flow rate of around 0.8 mL/min and temperature and pressure ranges of 3060 °C and 80-120 bar ...
C. SILVA   +3 more
openaire   +2 more sources

Interpretation of Microbial Soil Indicators as a Function of Crop Yield and Organic Carbon

open access: yesSoil Science Society of America Journal, Volume 77, Issue 2, Page 461-472, March 2013., 2013
An interpretative framework for microbial biomass C (MBC), basal respiration, and the activity of soil enzymes cellulase, β‐glucosidase, arylsulfatase, and acid phosphatase was developed for the clayey Oxisols of the Brazilian Cerrado. Soil samples (0–10‐cm depth) were collected from 24 treatments from three long‐term experiments and analyzed to ...
André Alves de Castro Lopes   +5 more
wiley   +1 more source

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