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| Registros recuperados: 24 | |
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| Andrianasolo, Haja. |
| Space images are of great interest, particurlarly for acreages estimation of crops in agricultural statistics. But their use in an operational way can't be done without some problems, mainly those about costs, for developping countries. So must be found a way of reducing these three kinds of costs. It means that the appropriate method must be able to supply results on some area, even if it is not covered by all the images used. The author's approach tends to this, and comprises the following steps : 1) selection of a representative image, 2) selection of a date where most of the crops of a year are present, 3) stratification of the studied area, 4) construction of parameters for patterns (crops) recognition, 5) estimation of crops acreage in some area |
| Tipo: Text |
Palavras-chave: TELEDETECTION SPATIALE; TRAITEMENT D'IMAGE; ANALYSE DISCRIMINANTE; AGRICULTURE; PREVISION; RECOLTE; RIZ. |
| Ano: 1986 |
URL: http://www.documentation.ird.fr/hor/fdi:23795 |
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| Andrianasolo, Haja. |
| Space images are of great interest, particurlarly for acreages estimation of crops in agricultural statistics. But their use in an operational way can't be done without some problems, mainly those about costs, for developping countries. So must be found a way of reducing these three kinds of costs. It means that the appropriate method must be able to supply results on some area, even if it is not covered by all the images used. The author's approach tends to this, and comprises the following steps : 1) selection of a representative image, 2) selection of a date where most of the crops of a year are present, 3) stratification of the studied area, 4) construction of parameters for pattern (crops) recognition, 5) estimation of crops acreage in some area |
| Tipo: Text |
Palavras-chave: TELEDETECTION SPATIALE; AGRICULTURE; TRAITEMENT D'IMAGE; ANALYSE DISCRIMINANTE; RECOLTE; PREVISION; RIZ. |
| Ano: 1988 |
URL: http://www.documentation.ird.fr/hor/fdi:25321 |
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| Latruffe, L.; Balcombe, K.; Davidova, S.; Zawalinska, K.; INRA, Institut National de la Recherche Agronomique (FRA). |
| La Pologne est l'un des pays d'Europe de l'Est candidats à une accession à l'Union européenne, qui rencontre de graves problèmes de restructuration agricole. L'article étudie l'efficacité technique, en 2000, d'exploitations agricoles individuelles polonaises spécialisées en élevage et en grandes cultures. L'efficacité est estimée par la méthode de frontière stochastique, et sa variabilité statistique évaluée par la construction d'intervalles de confiance. L'article examine également les déterminants de l'efficacité. Les résultats obtenus pas la méthode de frontière stochastique sont comparés avec ceux obtenus par la méthode de Data Envelopment Analysis (DEA). En moyenne, l'efficacité technique des exploitations d'élevage est supérieure à celle des... |
| Tipo: Book |
Palavras-chave: SPECIALISATION; ANALYSE DISCRIMINANTE; METHODE DEA. |
| Ano: 2002 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010fdea4e00&uri=/notices/prodinra1/2011/06/ |
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| Registros recuperados: 24 | |
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