Soil sampling
Optimum size in grid soil sampling for variable rate application in site-specific management
... treat soil not as a uniform, but a variable entity, and it enables site-specific management to increase production efficiency, which is the target of precision ...optimum soil sampling interval ...
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Sampling Design of Soil Physical Properties in a Conilon Coffee Field
... as soil conditioning, fertilization, chemical spraying, harvest, and other farming ...inadequate soil management and intense agricultural machine traffic may result in a change in soil physical ...
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Different collecting methods reveal different ecological groups of centipedes (Chilopoda)
... are size-selective (the size of the mesh is a compromise between animal size and size of material particles). There are two ways to compare the species’s spectrum recorded by individual samples collected by sifting: 1) ...
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Soil–atmosphere exchange of ammonia in a non-fertilized grassland: measured emission potentials and inferred fluxes
... The soil sampling area is contained within a radius of 10 m as this is the approximate flux footprint of the air sam- pling instrumentation explained in ...the soil in at least 15 ...The soil ...
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Condutividade elétrica aparente do solo em dois tipos de solo
... apparent soil electrical conductivity is influenced by a large number of soil attributes, which complicates the interpretation of the generated maps of this soil ...dynamic soil ...
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Systematic review and consensus guidelines for environmental sampling of Burkholderia pseudomallei.
... each sampling point. What this means in practice is that sampling points adjacent to each other are more likely to yield the same result ...the sampling strategy for ...physicochemical soil ...
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USE OF SCALED SEMIVARIOGRAMS IN THE PLANNING SAMPLE OF SOIL CHEMICAL PROPERTIES IN SOUTHERN AMAZONAS, BRAZIL
... Montanari R, Marques Júnior J, Pereira GT, Souza ZM. Forma da paisagem como critério para otimização amostral de Latossolos sob cultivo de cana-de-açúcar. Pesq Agropec Bras. 2005;40:69-77. Montanari R, Souza GSA, Pereira ...
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SITES AND SAMPLING TOOLS IN THE SOIL FERTILITY EVALUATION OF COFFEE PLANTS IN PRODUCTION
... In soil sampling, the collection site and the tool used may induce errors that can compromise the results of the chemical analysis and, consequently, the definition of corrective and fertilizer ...evaluate ...
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COMPARISON OF FIELD AND LABORATORY MODELS OF THE LOAD BEARING CAPACITY IN COFFEE PLANTATIONS
... significant. Soil LBC models for lab and field had the same ...lower soil load support capacity when compared to the field model, in the other words, there were slight shift of field model in relation to ...
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SAMPLING AND TDR PROBE INSERTION IN THE DETERMINATION OF THE VOLUMETRIC SOIL WATER CONTENT
... inevitable soil compaction when the cylinders are inserted into the ...during soil sampling and leads to an overestimation of ...the soil is easily sampled with reduced ...
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EQUIPAMENTOS DE AMOSTRAGEM PARA A DETERMINAÇÃO DA DENSIDADE DO SOLO, TESTADOS EM NITOSSOLO E LATOSSOLO
... of soil samplers commonly used for undisturbed soil sampling with the following technical specifications: (A) Uhland (Uhland, 1949): this sampler is composed of stainless steel rings with diameter of ...
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Burkholderia pseudomallei is spatially distributed in soil in northeast Thailand.
... of sampling for the detection of ...in soil. The presence of B. pseudomallei in the soil is hazardous and of the potential errors associated with soil sampling, we considered a false ...
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Bioaccumulation of trace elements by Avicennia marina
... T he concentrations of each metal in A. marina are given in T able 1 . T hey varied significantly between mangrove plants parts or sampling sites. R oots accumulated high levels of heavy metals, while stem did ...
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Sampling studies to estimate the HIV prevalence rate in female commercial sex workers
... conglomerate sampling, it is diffi cult to have a complete list of all prostitution locations and the selection probabili- ties are, in general, unknown, and approximations are con- sidered at the data ...
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Plant and bird presence strongly influences the microbial communities in soils of Admiralty Bay, Maritime Antarctica.
... The primers and qPCR conditions used are summarized in Table 1. qPCR was performed in 20 m l volumes using the iQ TM SYBRH Green Supermix Kit (Bio-Rad Laboratories, Carlsbad, CA) on a Rotor-Gene 3000 apparatus (Colbert ...
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DIVISÃO 2 - PROCESSOS E PROPRIEDADES DO SOLO
... for soil, but only in the unfertilized plot (H’ = ...and soil). For both indices, the observed variation among sampling events was ...among sampling events was observed for total density and ...
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The Efficiency Level in the Estimation of the Nigerian Population: A Comparison of One-Stage and Two-Stage Sampling Technique (A Case Study of the 2006 Census of Nigerians)
... Efficiency of anEstimator:Efficiency is a term applied in the context of comparing different method of estimating the same parameter; the estimate with the lower variance being regarded as the most efficient. It is also ...
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WOODY NECROMASS STOCK IN MIXED OMBROPHILOUS FOREST USING DIFFERENT SAMPLING METHODS
... for sampling this type of material (TER-MIKAELIAN; COLOMBO; CHEN, 2008; MIEHS et ...two sampling methods (fixed area and line intercept) in quantifying the necromass (dead wood on the soil) stock in ...
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Soil carbon and plant diversity distribution at the farm level in the savannah region of Northern Togo (West Africa)
... interaction of OM with soil mineral components. Given the sandy nature of most of the soils, the importance of organic matter management is key to improve the capacity of soils to prevent leaching. It is also ...
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Spatial variability in soybean seeds quality and in chemical attributes of the soil of a production field in the Brazilian Cerrado
... in soil chemical attributes of a production ...MT. Soil related variables, such as phosphorus, potassium, calcium, magnesium, and organic matter (OM) contents, pH, cation exchange capacity (CEC) and base ...
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