Crop Rotation
Mostrando 25-36 de 145 artigos, teses e dissertações.
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25. Farmer rationality and the adoption of greening practices in Poland
ABSTRACT Common Agricultural Policy (CAP) reform in the European Union introduced a new element: greening. The aim of greening is to support the environment and create non-productive value in agriculture. The main element of greening is the Ecological Focus Area (EFA) meaning that a portion of farmland area has to be designed for environmental purposes. This
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
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26. Physical Properties and Crop Management for Corn in an Albaqualf
ABSTRACT Rice monoculture in lowlands can cause problems for management practices in crop fields, for example, in weed control. For this reason, corn in rotation with irrigated rice in lowlands may be advantageous, despite problems with soil compaction and water excess. The objective of this study was to evaluate soil physical properties and corn performance
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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27. Soil Quality after Six Years of Paper Mill Industrial Wastewater Application
ABSTRACT The application of wastewater to irrigate soils may be an attractive option for paper mills, especially when the effluents can also provide nutrients to plants. Since there could be negative environmental effects, such activity must be preceded by a thorough evaluation of the consequences. The changes in soil quality of a Neossolo Flúvico Distrófi
Rev. Bras. Ciênc. Solo. Publicado em: 06/02/2017
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28. Sampling Layer for Soil Fertility Evaluation in Long-Term No-Tillage Systems
ABSTRACT In no-tillage (NT) systems, there is no plowed layer since the soil is not tilled. Thus, the soil layer for fertility evaluation can be defined as the one in which the fertility indices are affected by the surface application of lime and fertilizers and soil properties have the closest relationship with crop yields. The objective of this study was t
Rev. Bras. Ciênc. Solo. Publicado em: 24/10/2016
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29. Potassium Fertilization for Long Term No-Till Crop Rotation in the Central-Southern Region of Paraná, Brazil
ABSTRACT Fertilization programs for annual crops in the state of Paraná, southern Brazil, are based on studies that focused on conventional tillage and were established more than 30 years ago. The primary purpose of this study was to assess potassium (K) fertilization on long-term (>30 years) no-tillage soybean, corn, wheat, and barley crops grown in rotati
Rev. Bras. Ciênc. Solo. Publicado em: 19/09/2016
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30. Less or More Intensive Crop Arable Systems of Alentejo Region of Portugal: what is the sustainable option?
Competitiveness of traditional arable crop system of Alentejo region of Portugal has been questioned for long. Discussion and research on the sustainability of the system has evolved on two contrasted alternative options for production technologies to traditional system. On the one hand reduced and no tillage systems aim to more extensive technical operation
Rev. Econ. Sociol. Rural. Publicado em: 2015-03
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31. Soil respiration in cucumber field under crop rotation in solar greenhouse
Crop residues are the primary source of carbon input in the soil carbon pool. Crop rotation can impact the plant biomass returned to the soil, and influence soil respiration. To study the effect of previous crops on soil respiration in cucumber (Cucumis statirus L.) fields in solar greenhouses, soil respiration, plant height, leaf area and yield were measure
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-08
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32. Nitrogen contributions of legume roots to cabbage nutrition
The effects of roots are generally not considered in studies assessing crop responses to green manure. However, measuring such effects can contribute to a better understanding of crop rotation. In two experiments, we evaluated the content of legume-N in crop tissue and the fertilizer value of the roots and shoots of two legume species. Roots, shoots, or whol
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-12
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33. Avaliação do metabolismo primário da região cambial e casca de Eucalyptus grandis / Evaluation of the primary metabolism of Eucalyptus grandis cambial region and bark
Eucalyptus genus is the most widely planted hardwood crop in the world because of its superior growth, broad adaptability and multipurpose wood properties. In today\ s \"new carbon economy\", eucalypts are receiving attention as fast-growing, short-rotation, renewable biomass crop for energy production. In spite of its economical importance, little informati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2012
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34. Qualidade física da cama de semeadura do solo em sistemas de manejo / Physical quality of the soil seedbed under management systems
The seedbed is one of the most important soil physical conditions for plant growth. The evaluation of the soil physical quality in such soil environment is essential to understand the factors that affect crop development, as it is where seed germination and plant emergence and establishment take place. The objective of the experiment carried out in Brazil wa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/11/2012
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35. Resposta do algodoeiro adensado ao nitrogênio em sucessão de culturas / Narrow row cotton response to nitrogen rate in crop rotation
A produção de algodão (Gossypium hirsutum L.) em sistema adensado iniciou no Brasil na safra 2008/09 com objetivo de aumentar a lucratividade da propriedade, por meio da intensificação de uso do solo e redução de custos. Este sistema é, substancialmente, alterado em relação ao convencional, pelo aumento da população de plantas, semeadura tardia (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2012
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36. Avaliação de espécies oleaginosas de inverno em diferentes regiões fisiográficas do Paraná para produção de biodiesel
O Paraná se destaca como um dos grandes produtores de soja e milho, porém, no inverno boa parte da área ocupada, principalmente nas regiões com clima mais ameno do estado, permanece ociosa. Com o objetivo de se avaliar o potencial de espécies adaptadas a essa condição de clima, o presente trabalho que faz parte do Projeto "Viabilização de matérias
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012