| Full text | |
| Author(s): |
Picoli, Michelle C. A.
[1]
;
Lamparelli, Rubens A. C.
[2]
;
Sano, Edson E.
[3]
;
Rocha, Jansle V.
[4]
Total Authors: 4
|
| Affiliation: | [1] CTBE, Div Sustentabilidade Prod Biomassa & Bioenergia, BR-35121010 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Ncleo Interdisciplinar Planejamento Energet, Campinas, SP - Brazil
[3] EMBRAPA, Ctr Pesquisa Agr Cerrados, Brasilia, DF - Brazil
[4] Univ Estadual Campinas, Fac Agr Engn, Campinas, SP - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Engenharia Agrícola; v. 34, n. 6, p. 1245-1255, NOV-DEC 2014. |
| Web of Science Citations: | 3 |
| Abstract | |
Some models have been developed using agrometeorological and remote sensing data to estimate agriculture production. However, it is expected that the use of SAR images can improve their performance. The main objective of this study was to estimate the sugarcane production using a multiple linear regression model which considers agronomic data and ALOS/PALSAR images obtained from 2007/08, 2008/09 and 2009/10 cropping seasons. The performance of models was evaluated by coefficient of determination, t-test, Willmott agreement index (d), random error and standard error. The model was able to explain 79%, 12% and 74% of the variation in the observed productions of the 2007/08, 2008/09 and 2009/10 cropping seasons, respectively. Performance of the model for the 2008/09 cropping season was poor because of the occurrence of a long period of drought in that season. When the three seasons were considered all together, the model explained 66% of the variation. Results showed that SAR-based yield prediction models can contribute and assist sugar mill technicians to improve such estimates. (AU) | |
| FAPESP's process: | 08/06043-5 - Using of Sar multi-polarimetric and optical ALOS images, in the spectral caracterization of sugar cane culture and its relationship with the productivity |
| Grantee: | Rubens Augusto Camargo Lamparelli |
| Support Opportunities: | Regular Research Grants |