Crop Mapping
Mostrando 1-12 de 61 artigos, teses e dissertações.
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1. FERTILIZER RECOMMENDATION METHODS FOR PRECISION AGRICULTURE – A SYSTEMATIC LITERATURE STUDY
ABSTRACT Spatial variability management of soil chemical attributes is one of the approaches to be employed in the face of the constant challenge of increasing agricultural yield to meet world demand. In this sense, precision agriculture has as one of its tools the application of inputs at varying rates, which seeks to determine the ideal amount of fertilize
Engenharia Agrícola. Publicado em: 2022
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2. Annual cropland mapping using data mining and OLI Landsat-8
RESUMO No Estado do Paraná, Brasil, não há grandes mudanças nas áreas cultivadas com culturas anuais, principalmente devido a leis ambientais que não permitem expansões para novas áreas. Há grande contribuição das culturas anuais para a demanda doméstica de alimentos e econômica nas exportações. Assim, a área e distribuição das culturas anu
Rev. bras. eng. agríc. ambient.. Publicado em: 25/11/2019
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3. RAINFALL ZONING FOR COCOA GROWING IN BAHIA STATE (BRAZIL) USING FUZZY LOGIC
ABSTRACT Cacao is a species of great economic and social importance. Expanding the area grown with this crop has been limited by its climatic requirements. Agroclimatic zoning for agricultural sector and creation of land suitability maps by fuzzy logic contribute to such production expansion. In this sense, this study aimed to develop rainfall zoning for cac
Eng. Agríc.. Publicado em: 09/09/2019
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4. SPATIAL VARIABILITY MAPPING OF SUGARCANE QUALITATIVE ATTRIBUTES
ABSTRACT Spatial variability evaluation of qualitative attributes can be used as an excellent strategy to design forms of intervention that result in better crop profitability for some agricultural crops, for example, sugarcane. Based on the assumption that qualitative attributes of sugarcane present spatial variability and their distributions along the stem
Eng. Agríc.. Publicado em: 09/09/2019
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5. 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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6. Association mapping of drought tolerance indices in wheat: QTL-rich regions on chromosome 4A
ABSTRACT Drought is likely the main abiotic stress that affects wheat yield. The identification of drought-tolerant genotypes represents an effective way of dealing with the continuous decrease in water resources as well as the increase in world population. The aim of this study was to identify single nucleotide polymorphisms (SNP) associated with drought to
Sci. agric. (Piracicaba, Braz.). Publicado em: 02/09/2019
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7. TRANSITION FROM SYSTEMATIC TO DIRECTED SOIL SAMPLING DESIGNS IN AN AREA MANAGED WITH PRECISION AGRICULTURE
ABSTRACT In agricultural areas with a historical of systematic soil sampling, alternative methodologies such as directed sampling design based on management zones (MZ) have been proposed to reduce sampling costs. The aim of this study was to evaluate the technical and economic impacts of replacing a dense systematic soil sampling design (cell size of 0.5 ha)
Eng. Agríc.. Publicado em: 19/06/2019
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8. Resistance Mapping of the Genus Cyperus in Rio Grande do Sul and Selection Pressure Analysis
RESUMO: Entre as espécies do gênero Cyperus ocorrentes na lavoura de arroz, destacam-se C. esculentus, C. difformis e C. iria, sendo as duas últimas relatadas como resistentes a herbicidas no Rio Grande do Sul (RS). Os objetivos deste trabalho foram caracterizar e mapear a ocorrência de plantas resistentes do gênero Cyperus em áreas de arroz irrigado n
Planta daninha. Publicado em: 13/06/2019
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9. Mapping Ethanol Production Sources in Brazil Through Stable Isotopes
Ethanol is a biofuel produced in Brazil through fermentation of sugarcane, requiring vast plantation areas and water availability. The present work aimed at testing isotopic markers as tools for ethanol source appointment or certification of origin. For this, oxygen and hydrogen isotopic patterns were determined in plant-water, soil-water, rainwater, and wat
J. Braz. Chem. Soc.. Publicado em: 2015-06
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10. Mapeamento da área cultivada e estimativa do rendimento de grãos de arroz irrigado a partir de modelos agrometeorológicos-espectrais para o Rio Grande do Sul / Crop area mapping and crop rice yields estimation using agrometeorological-spectral models for Rio Grande do Sul state, Brazil
The objective of this study was to characterize the irrigated rice crop at Rio Grande do Sul State and to test a methodology to define the cultivated area and to estimate the grain yield through the adjustment of the agrometeorological-spectral models. The study was developed for the six rice-growing regions of Rio Grande do Sul. Data of the irrigated rice g
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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11. Desenvolvimento de marcadores microssatélites e caracterização da diversidade genética molecular de acessos de alho (Allium sativum L.) / Development of microsatellite markers and characterization of molecular genetic diversity among garlic (Allium sativum L.) accessions
Garlic is an important crop not only for its culinary attractiveness, but also because of a huge number of medicinal properties. The genetic resources in germplasm require characterization by morphological traits and molecular markers to be effectively used in breeding programs. A novel set of 16 SSR loci specific to garlic were developed. Ten loci were poly
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2011
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12. Mapeamento da variabilidade espacial das plantas daninhas.
Traditionally the weed management has been done considering the overall weed infestation in the whole field and then herbicides are sprayed according to a single weed control recommendation for the field. But weeds are not uniformly distributed and normally have clumped populations showing weed patches presenting high spatial variability. This nature of the
Planaltina. Publicado em: 2011