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	Provedor de dados REA (1) AGRIAMBI (1) Autor Basso,Claudir J. (2) Santi,Antônio L. (2) Bayer,Cimélio (1) Cherubin,Maurício R. (1) Damian,Júnior M. (1) Muraro,Dionei S. (1) Pias,Osmar H. de C. (1) Pinto,Marlo A. B. (1) Silva,Alieze N. da (1) Mais... Palavra-chave Management zones (1) NDRE (1) NDVI (1) Organic waste (1) Sampling costs (1) Sampling grids (1) Spatial variability (1) Triticum aestivum (L.) (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2019 (1) 2018 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última TRANSITION FROM SYSTEMATIC TO DIRECTED SOIL SAMPLING DESIGNS IN AN AREA MANAGED WITH PRECISION AGRICULTURE REA Pias,Osmar H. de C.; Cherubin,Maurício R.; Santi,Antônio L.; Basso,Claudir J.; Bayer,Cimélio. 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) by a systematic sampling with a smaller number of samples (cell size ranging from 1 to 4.5 ha), directed or conventional sampling design on the mapping of soil plant-available phosphorus (P), exchangeable potassium (K), and pHwater. The study was carried out in an agricultural area of 120 ha with soil classified as an Oxisol. The directed sampling designs were based on MZ delimited from data of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sampling costs; Sampling grids; Spatial variability; Management zones. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300400 Strategies for fertilization with pig and cattle slurry in wheat crop AGRIAMBI Damian,Júnior M.; Muraro,Dionei S.; Basso,Claudir J.; Silva,Alieze N. da; Pinto,Marlo A. B.; Santi,Antônio L.. ABSTRACT This study aimed to evaluate the effect of different managements with pig slurry (PS) and cattle slurry (CS) on wheat dry matter and grain yields, and the potential to estimate this variation with the NDVI (normalized difference vegetation index) and NDRE (normalized difference red edge index) vegetation indices. The experiment was conducted in Frederico Westphalen-RS, Brazil, in a randomized block experimental design, in a 2 x 7 factorial scheme with four replicates and seven forms of surface and subsurface application, with and without the use of the dicyandiamide (DCD) nitrification inhibitor, distributed as follows: control without application of slurry and DCD; control without application of slurry and DCD, but scarified only with the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum (L.); Organic waste; NDVI; NDRE. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000400261 Registros recuperados: 2 Primeira ... 1 ... Última

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