Crops Seasons
Mostrando 1-12 de 64 artigos, teses e dissertações.
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1. Selectivity and residual weed control of pre-emergent herbicides in soybean crop
ABSTRACT The use of pre-emergent herbicides is important for the current agricultural production systems that present weeds resistant to herbicides. Considering the complexity of using these products, the objective of this work was to evaluate their selectivity and residual weed control in soybean crops and their effect on the weeds Amaranthus hybridus, Bide
Rev. Ceres. Publicado em: 2021-06
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2. Conservation system improves soil microbial quality and increases soybean yield in the Northeastern Cerrado
ABSTRACT The conservation tillage systems is based on the surface protection by crop residue and reduced soil disturbance. These two principles can favor the soil quality and promote sustainable agricultural systems. The study was developed with the objective of measure soil microbial biomass, soil basal respiration, enzymatic activity and soybean yield in c
Bragantia. Publicado em: 2020-12
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3. Agronomic performance of seedless table grape genotypes under tropical semiarid conditions
ABSTRACT The São Francisco Valley is the main producing region of table grape in Brazil. The objective of this work was to evaluate the agronomic performance and physicochemical characteristics of 14 seedless table grape genotypes to select those with potential to be used in commercial crops in the São Francisco Valley, Brazil, or as parents in breeding pr
Bragantia. Publicado em: 2020-09
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4. Longer crop cycle lengths could offset the negative effects of climate change on Brazilian maize
ABSTRACT Maize (Zea mays) is considered one of the most important crops for world food security. Globally, Brazil is the second largest maize producer and the fourth largest maize consumer. The climate variables is one of the main determining factors for crop yield. Given the possibility of future climate changes, our objective was to evaluate the impact of
Bragantia. Publicado em: 13/12/2019
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5. IDENTIFICATION OF HOMOGENEOUS RAINFALL ZONES DURING GRAIN CROPS IN PARANÁ, BRAZIL
ABSTRACT The aim of this study is to identify homogeneous rainfall zones in the winter and summer 1st and 2nd crops, in the state of Paraná, Brazil. The zones were defined by clustering using the expectation-maximization (EM) algorithm to transform seasonal rainfall series. Monthly average rainfall data collected from 157 weather stations for 20 years (1996
Eng. Agríc.. Publicado em: 09/12/2019
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6. Is Increasing Doses of Imazapyr + Imazapic Detrimental to the Main Crop Rotation Alternatives to Flooded Rice?
RESUMO: A mistura formulada de imazapyr + imazapic é o principal herbicida usado para o controle de plantas daninhas em arroz no sistema Clearfield®. O uso contínuo de altas doses pode aumentar sua atividade residual no solo. O objetivo deste trabalho foi determinar a sensibilidade de culturas de cobertura e soja em rotação com arroz irrigado a diferent
Planta daninha. Publicado em: 02/12/2019
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7. Agroforestry systems and understory harvest management: the impact on growth and productivity of dual-purpose wheat
Abstract: The objective of the study was to evaluate the growth and production efficiency of forage-grain dual-purpose wheat in two arrangements and four agroforestry systems (Intercrop-I and Intercrop-II), as well as to evaluate crop management for the wheat crops in two planting seasons (Crop Season I-2014 and Crop Season II-2015. The experiment was condu
An. Acad. Bras. Ciênc.. Publicado em: 25/11/2019
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8. Growth and Development of Sourgrass Plants from Vegetative Parts of Clumps
RESUMO: O capim-amargoso (Digitaria insularis) é uma planta perene com elevado potencial de infestação, possui desenvolvimento rápido e agressivo e se reproduz tanto por sementes quanto por rizomas. A infestação de D. insularis tem aumentado nas áreas agrícolas onde não há culturas de cobertura estabelecidas na entressafra. Nessas áreas, vem se to
Planta daninha. Publicado em: 04/11/2019
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9. Effect of soybean plant density on stem blight incidence
RESUMO Plantio direto e alta população de plantas são práticas usuais em lavouras de soja na região sul do Brasil o que tem favorecido o incremento de doenças da haste e da vagem. O objetivo deste trabalho foi avaliar o efeito de populações de plantas na incidência de seca da haste. Os experimentos foram conduzidos no município de Muitos Capões, e
Summa phytopathol.. Publicado em: 14/10/2019
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10. Mapping of spatiotemporal distribution of Tibraca limbativentris Stal (Hem.: Pentatomidae) in flooded rice crop in Southern Brazil
ABSTRACT The rice stem bug, Tibraca limbativentris Stal (Hem.: Pentatomidae), is one of the main insect pests in Brazilian rice crops. Knowledge of its spatiotemporal distribution can support the development of an effective sampling system and improve IPM strategies. This study aimed to map the spatiotemporal distribution of rice stem bug in flooded rice cro
Rev. Bras. entomol.. Publicado em: 05/09/2019
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11. Yield, quality and drought sensitivity of tomato to water deficit during different growth stages
ABSTRACT In areas where the supply of water for irrigation is limited, tomato production is often subject to drought stress. In order to investigate the drought sensitivity of tomato (Lycopersicon esculentum Mill.) yield and quality during different growth stages, field and pot experiments were conducted in a high tunnel in southern China during the 2013 and
Sci. agric. (Piracicaba, Braz.). Publicado em: 02/09/2019
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12. STRUCTURAL PROPERTIES OF SOIL IN MAIZE AND FORAGE GRASS INTERCROPPING UNDER NO-TILLAGE IN THE BRAZILIAN CERRADO
ABSTRACT Integration of forage grasses with grain crops, such as maize, allows maintaining soil cover. The objective of this study was to evaluate the tensile strength, friability, and stability of soil aggregates in the maize and forage grass intercropping under no-tillage system. The study used a completely randomized block design with seven treatments and
Eng. Agríc.. Publicado em: 12/08/2019