Irrigation Agriculture
Mostrando 13-24 de 120 artigos, teses e dissertações.
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13. Soil-water-plant relationship and fruit yield under partial root-zone drying irrigation on banana crop
ABSTRACT: Climatic uncertainties have compromised water resources, which influences irrigated agriculture. Irrigation is an important alternative to mitigate the effects of water scarcity. Partial root-zone drying (PRD) is a rational use of irrigation water. This study aimed to evaluate PRD for irrigation management of banana crop, cv BRS Princesa, under sem
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
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14. Sugarcane spatial-temporal monitoring and crop coefficient estimation through NDVI
RESUMO O uso de imagens de satélites como complemento na gestão de irrigação constitui uma base primordial no processo de tomada de decisão para a agricultura irrigada. Nesse contexto, o objetivo do trabalho foi monitorar, por meio do Índice de Vegetação por Diferença Normalizada (IVDN), a cultura da cana-de-açúcar irrigada pertencente à empresa
Rev. bras. eng. agríc. ambient.. Publicado em: 06/05/2019
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15. Growth and production components of West Indian cherry cultivated with saline waters and potassium fertilization
RESUMO Devido às limitações hídricas tanto em termos quantitativos como qualitativos na região semiárida do Nordeste brasileiro, o uso de águas com elevadas concentrações de sais torna-se necessário para agricultura irrigada. Deste modo, objetivou-se com este trabalho, avaliar o crescimento e a produção da aceroleira enxertada sob irrigação com
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-04
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16. MODELING SOIL WATER REDISTRIBUTION UNDER SURFACE DRIP IRRIGATION
ABSTRACT The main objective of this study was to develop a numerical model to simulate water distribution, and the shape of the wetted soil volume, resulting from a point source irrigation at the ground surface (dripper), given soil hydraulic properties and irrigation system parameters. The mathematical model was developed in Fortran 90 at the Department of
Eng. Agríc.. Publicado em: 2019-02
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17. Production of chili pepper under organic fertilization and irrigation with treated wastewater
RESUMO Com a ocorrência de secas prolongadas na região do Semiárido brasileiro, a escassez hídrica influencia diretamente na agricultura nessa região, de forma que o reuso de água e aplicação de esterco bovino torna-se uma alternativa viável para a produção de pimenta. Nesse contexto, a presente pesquisa foi realizada objetivando-se avaliar a prod
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-02
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18. Winery distillery waste compost effect on the performance of melon crop under field conditions
ABSTRACT: The substantial generation of organic waste together with increasing interest in developing sustainable agriculture heralds an opportunity for mobilizing the recycling of these materials as a source of organic matter and nutrients into a viable management strategy option. A field experiment was conducted to evaluate the use of compost derived from
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-12
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19. NITROGEN, PHOSPHORUS AND POTASSIUM ACCUMULATION IN WATERMELON CULTIVARS IRRIGATED WITH SALINE WATER
ABSTRACT The use of saline water in agriculture has increased in the Brazilian semiarid due to low availability of good quality water for irrigated agriculture, being the selection of salt tolerant hybrids an alternative to reduce the effect of salinity on nutritional status of plants. So, the objective of this work was to evaluate the effect of salinity of
Eng. Agríc.. Publicado em: 2018-06
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20. Automatically controlled deficit irrigation of lettuce in “organic potponics”
ABSTRACT: Concerns with water crisis involve all sectors of society and irrigated agriculture remains the main water consumer. This study evaluated an agricultural production system for lettuce cultivation in greenhouse, “organic potponics”, to economize water and manure use, using a Simplified Irrigation Controller (SIC), based on soil matric potential
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-01
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21. Access and Intensity of Mechanization: Empirical Evidence of Rice Farmers in Southern Ghana
ABSTRACT The medium term development plan of Ghana proposed modernization of agriculture to lead the way in transforming the economy. Providing irrigation infrastructure and enhancing farmer access to farm machinery were major interventions proposed. In line with this, the government has been investing in irrigation infrastructure as well as importing farm m
Braz. arch. biol. technol.. Publicado em: 22/06/2017
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22. Effects of irrigation intervals and organic manure on morphological traits, essential oil content and yield of oregano ( Origanum vulgare L.)
ABSTRACT In order to evaluate the effect of irrigation intervals and cattle manure levels on morphological traits, essential oil content and yield of oregano, an experiment was conducted at the experimental Farm of the Faculty of Agriculture, Urmia University, Iran. The experimental design was split-plots, arranged in randomized complete blocks with three re
An. Acad. Bras. Ciênc.. Publicado em: 2016-12
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23. Efficiency of water application of irrigation systems based on microsprinkling in banana plantations
Further food production may be limited by the reduced availability of water resources. Since irrigated agriculture is the productive sector that presents a higher demand of water, this sector has been under intense pressure in order to ensure food production with improved efficiency of water use. This study aimed to use the Time Domain Reflectometry (TDR) te
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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24. A non-invasive plant-based probe for continuous monitoring of water stress in real time: a new tool for irrigation scheduling and deeper insight into drought and salinity stress physiology
The non-invasive, magnetic leaf patch clamp pressure probe (also termed ZIM-probe) allows for the first time to measure continuously turgor pressure changes of plant leaves over long periods of time with high precision and in real time. The probe has become an important tool in plant physiology, molecular biology and ecology, but also in agriculture because
Theor. Exp. Plant Physiol.. Publicado em: 2013