Results 91 to 100 of about 9,305 (198)

Pemodelan Harga Tanah Perkotaan Menggunakan Metode Geostatistika (Daerah Studi: Kota Bandung) [PDF]

, 2010
As one of resource factors, land plays a strategic role in urban development. Land price information is needed in urban land management. Spatial distribution of land price can be obtained through spatial modelling.
Ginting, M. (Masyitah), Hendriawaty, S. (Susy), Nugroho, H. (Hary), Sari, D. K. (Dewi)   +3 more
core  

Variabilidade espacial de atributos físicos de um argissolo vermelho-amarelo sob pastagem e vegetação secundária em regeneração natural Spatial variability of physical attributes of a red-yellow ultisol under pasture and secondary vegetation in natural regeneration

Engenharia Agrícola, 2009
Este trabalho foi realizado com o objetivo de estudar a variabilidade espacial de atributos físicos de um Argissolo Vermelho-Amarelo sob pastagem e vegetação secundária em regeneração natural.
Julião S. de S. Lima, Marcos A. Sattler, Renato R. Passos, Paulo C. Oliveira II, Gustavo S. de Souza   +4 more
doaj   +1 more source

Spatial variability of soil attributes and sugarcane yield in relation to topographic location Variabilidade espacial de atributos do solo e produtividade da cultura de cana-de-açúcar em relação a localização topográfica

Revista Brasileira de Engenharia Agrícola e Ambiental, 2010
Soils submitted to the same management system in places with little variation of landscape, manifest differentiated spatial variability of their attributes and crop yield.
Zigomar M. de Souza, Domingos G. P. Cerri, Paulo S. G. Magalhães, Diego S. Siqueira   +3 more
doaj   +1 more source

Forecasting seasonality in prices of potatoes and onions: challenge between geostatistical models, neuro fuzzy approach and Winter method [PDF]

This paper, we studied the ability of geostatistical models (ordinary kriging (OK) and Inverse distance weighting (IDW)), adaptive neuro-fuzzy inference system (ANFIS) and Winter method for prediction of seasonality in prices of potatoes and onions in ...
Amiri, Arshia, Bakhshoodeh, Mohamad, Najafi, Bahaeddin   +2 more
core   +1 more source

Análise da variabilidade espacial do rendimento de culturas e de propriedades do solo em pequenas parcelas agrícolas [PDF]

, 2003
[Abstract] The objective of this study was to assess spatial variability of soil properties and crop yield under no tillage as a function of time, in two soil/climate conditions in São Paulo State, Brazil.
Paz González, Antonio, Vieira, Sidney Rosa   +1 more
core   +1 more source

Variabilidade espacial do pH, teores de matéria orgânica e micronutrientes em profundidades de amostragem num Latossolo Vermelho sob semeadura direta Space variability of the pH values, contents of organic matter and micronutrients in samplings depth in a Acrustox under no-till system

Ciência Rural, 2007
A variabilidade espacial dos índices de fertilidade do solo aumenta com a semeadura direta, constatando-se diferenças nos teores de nutrientes de uma camada superficial do solo em relação à outra logo abaixo. Disto, resulta a necessidade de definir novos
Luiz Antônio Zanão Júnior, Regina Maria Quintão Lana, Ednaldo Carvalho Guimarães   +2 more
doaj   +1 more source

Spatial dependence in experiments of progeny selection for bean ( Phaseolus vulgaris L.) yield

Revista Ceres
In field experiments, it is often assumed that errors are statistically independent, but not always this condition is met, compromising the results. An inappropriate choice of the analytical model can compromise the efficiency of breeding programs in ...
Michele Jorge da Silva, Antonio Policarpo Souza Carneiro, Andréia Luiza Gonzaga Feres, José Eustáquio Souza Carneiro, Nerilson Terra Santos, Paulo Roberto Cecon   +5 more
doaj   +1 more source

Relationship between exports, imports, and economic growth in France: evidence from cointegration analysis and Granger causality with using geostatistical models [PDF]

This paper introduces a new way of investigating linear and nonlinear Granger causality between exports, imports and economic growth in France over the period 1961-2006 with using geostatistical models (kiriging and inverse distance weighting ...
Amiri, Arshia, Gerdtham, Ulf-G
core   +1 more source

Geospatial Approach to Soil Fertility Mapping in Dailekh District, Nepal: A GIS Perspective

AgroEnvironmental Sustainability
Spatial mapping of the soil gives the distribution patterns of the nutrients, which is crucial for integrated nutrient management, site-specific crop selection, water resource management, and adaptation to climate change for optimizing productivity ...
Gaurab Dhakal, Sanket Kattel
doaj   +1 more source

Application of Weighted Semivariogram Model (WSVM) based on fitness to experimental semivariogram on estimation of rainfall amount

, 2011
Abstract. This study presents a weighted semivariogram model (WSVM) which is intended to reduce the uncertainties in the selection of the best-fit semivariogram model and associated parameters. The proposed WSVM is based on the combined forecast method, providing the weighted average semivariogram by summing up the product of estimated semivariograms ...
Wu, S.-J., Chen, P.-H., Yang, J.-C.
openaire   +2 more sources