Direct Planting System
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. EFFECT OF THE DISTANCE BETWEEN THE CUTTING DISC AND FURROW OPENERS EMPLOYED IN ROW CROP PLANTING ON SOIL MOBILIZATION
ABSTRACT The objective of this study was to determine the effect of the longitudinal distance between a cutting disc and a fertilizer furrow opener on the operational performance of the furrow opener working at different forward speeds during soil mobilization. The soil in the experimental area was classified as Typic Hapludalf with a loam soil texture. The
Eng. Agríc.. Publicado em: 2021-04
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2. Economic Viability of Tomato Cultivation in Organic Farming System
ABSTRACT The aim of the present study is to evaluate the economic viability of tomato cultivation in a system of organic farming, and to compare it with the conventional farming system. The fixed and variable costs of both cultivation systems were calculated, as well as the costs of disease control with the application of alternative products and pesticides.
Braz. arch. biol. technol.. Publicado em: 17/08/2017
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3. Produtividade e características fisiológicas do consórcio milho-braquiária / Productivity and physiological characteristics of Corn-Brachiaria Intercrop
Three experiments were installed between the years of 2007 and 2009, two of them made in the field and one held in a greenhouse. Our aims were: experiment 1 - evaluate the effects of emergence time in brachiaria and in the application of atrazine herbicide mixture + nicosulfuron at two levels of fertilization, in photosynthesis, stomatal conductance, transpi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
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4. Banco de sementes e sistemas de renovação no pasto de capim-braquiária com integração de culturas agrícolas / Seed bank in renewal of pasture signal grass with crop livestock integration
The experiment was conducted to evaluate the renewal of pasture of Brachiaria decumbens with integration of crops in cropping systems "planting" direct and conventional. The experiment was conducted in pastures of Brachiaria decumbens Stapf. Located on the campus of University Federal of Viçosa, Viçosa, MG. The experiment consisted of five "systems" of gra
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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5. Eficiência de roçadas no controle de Bidens pilosa e Commelina benghalensis em competição com a cultura do milho / Efficiency of clearings on the control of Bidens pilosa and Commelina benghalensis in competition with corn crop
Dentre os fatores que dificultam a expansão da área cultivada com milho orgânico destaca-se o controle das plantas daninhas. Neste sistema de cultivo são permitidos apenas os métodos de controle culturais e mecânicos, que na maioria das vezes são pouco eficientes e não adequados ao sistema de plantio direto. Neste trabalho avaliou-se a eficiência da
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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6. Eficiência agronômica de um fertilizante fonte de micronutrientes nas culturas da soja e milho / Eficiência agronômica de um fertilizante fonte de micronutrientes nas culturas da soja e milho / Agronomic efficiency of fertilizer fount of micronutrients in soy and corn cultures / Agronomic efficiency of fertilizer fount of micronutrients in soy and corn cultures
The present work aimed to value the agronomic efficiency of different doses of a fertilizer fount of micronutrients applied through the soil in soy culture and the residual answer in culture rotation with the corn, by the determination of chemical attributes related with the productivity. The study was performed in fields condition in a Distrofic Red Latosoi
Publicado em: 2010
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7. Manejo da irrigação do feijoeiro cultivado em plantio direto no sistema integração lavoura-pecuária / Irrigation management of no-tillage common bean crop in farming-livestock system
The water is becoming a resource more and more scarce, with growing strategic importance in the sections environmental, economical, social and political. The irrigated agriculture is responsible for considerable portion of the agricultural production, however, it is the activity that more it demands water. In the irrigated areas, one of the most important fa
Publicado em: 2009
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8. Bases ecológicas para o manejo de Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae) em sistemas orgânicos de produção de tomate
The whitefly Bemisia tabaci biotype B stands out, among the diverse community of pest herbivores that colonize the tomato crop, due to the direct damages and transmission of several pathogenic viruses (Geminiviridae) causing productivity losses. The spraying of insecticides for its control selects resistant populations and promotes the dispersion of adults t
Publicado em: 2009
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9. Comportamento do fósforo frente à adubação fosfatada em latossolos com diferentes históricos de uso / Behavior of phosphorus in phosphated fertilization in Oxisols with different use histories / Comportamento do fósforo frente à adubação fosfatada em latossolos com diferentes históricos de uso / Behavior of phosphorus in phosphated fertilization in Oxisols with different use histories
O fornecimento de fósforo representa parte expressiva do custo de produção das culturas. No sistema de plantio direto (SPD) existe uma tendência de melhor aproveitamento do P, sobretudo em áreas que já vem sendo cultivadas há mais tempo. Porém, há a necessidade de definição/confirmação da melhor utilização de fertilizantes fosfatados sob SPD.
Publicado em: 2009
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10. Efeito do manejo do solo com plantas de cobertura, cultivares/híbridos e nitrogênio na cultura do milho / Effect of soil management with soil cover plants, hybrids and dose of nitrogen in the productivity of corn
The corn is the main cereal produced in Brazil and its productivity is very affected by the improper use of nitrogen, which is the nutrient absorbed in larger quantities and therefore responsible for a significant share in production costs. Due to the importance of nitrogen for the corn crop becomes necessary studies to reduce the amount of nitrogen applied
Publicado em: 2008
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11. AVALIAÇÃO DE BIOMASSA E ÓLEO DE REBROTAS DE GALHOS E FOLHAS DE PAU-ROSA (Aniba rosaeodora DUCKE) EM PLANTIOS COMERCIAIS SUBMETIDOS À PODA E ADUBAÇÃO
This study aimed to evaluate the production of biomass and productivity of oil branches and leaves of rosewood (Aniba rosaeodora) trees in commercial plantations with ages of 3 and 5 years, subject to pruning and fertilization, located in Maués, states of Amazonas, Brazil. The planting of 3 years has 1,240 trees with spacing of 1.5 m x 2.0 m and the plantin
Publicado em: 2008
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12. Nitrogênio (15 N) e atividade das enzimas redutase do nitrato e glutamina sintetase na cultura do milho em plantio direto / Evaluation of you cultivate of corn the application of Nitrogen and molibdênio and effect on the activity of the enzymes nitrate redutase and glutamina sintetase
This work was developed using data of the rehearsal conducted in the experimental station of CoimbraMG, area belonging to Federal University of Viçosa. It was aimed at through this theory: 1 - to evaluate the effect of the Nitrogen manuring on the activity of the enzymes nitrate redutase (NR) and Glutamina sintetase (GS) in corn cultivars in reduced spacing
Publicado em: 2008