Organic Direct Planting System
Mostrando 1-9 de 9 artigos, teses e dissertações.
-
1. 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
-
2. 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
-
3. 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
-
4. 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
-
5. Dinâmica do fósforo em latossolo do cerrado sob sistema de integração lavoura-pecuária
The integration of crop-livestock systems (ILP) is one of the alternatives to recover the fertility of soils under degraded pastures in the Cerrado region. This system has positive effects on soil fertility and quality, increasing organic carbon contents and soil biological activity, thus requiring a new characterization of soil fertility by identifying soil
Publicado em: 2008
-
6. Nitrogen, phosphorus and potassium recommendation for sunflower under no-tillage system in Paraguay / RECOMENDAÇÃO DE NITROGÊNIO, FÓSFORO E POTÁSSIO PARA GIRASSOL SOB SISTEMA PLANTIO DIRETO NO PARAGUAI.
Sunflower crop has some important agronomic characteristics, as great fitomassa production, larger resistance to the drought, cold and heat than most of the cultivated species and wide adaptability to different conditions of soil and climates. Its deep root system provides absorption of nutrients of the deepest layers, ciclying great amounts of nitrogen (N),
Publicado em: 2008
-
7. Seqüestro de carbono e alterações bioquímicas da matéria orgânica de solos cultivados com eucalipto / Carbon sequestration and biochemical changes in organic matter of soils cultivated with eucalyptus
The maintenance of soil organic matter (SOM) in commercial plantations of eucalyptus depends on the adoption of appropriate crop and soil management. Changes in inventories of C and the quality of the MOS caused by the use and soil management can be identified by quantifying the stocks of C in forest compartments (soil and plant) over time of cultivation, an
Publicado em: 2007
-
8. Análise de crescimento e produtividade de duas variedades de cana-de-açúcar (Saccharum spp) influenciadas por doses de fósforo
The knowledge of the leaf area is required every time the sugarcane is subjected to evaluation in which different varieties are compared or submitted to different environmental conditions, managements or fertilizations, therefore evidently showing alteration in dimensions of the plant leaves, so affecting the photosynthetic process. Although the higher breat
Publicado em: 2007
-
9. Conduct of cauliflower cultivars cultivated by the system of and direct and conventional planting in a conversion phase to the organic system. / Comportamento de cultivares de couve-flor sob sistema de plantio direto e convencional em fase de conversÃo ao sistema orgÃnico.
The organic agriculture offers healthy food, worries about the environmental conservation and contributes to the evolution of sustainability. Yet, it is extremely important the selection of adapted cultivars to these conditions of cultivation. The present work had as objective study the conduct of cauliflower cultivars and hybrids (Brassica oleracea var. bat
Publicado em: 2004