Perceived importance of precision farming technologies in improving phosphorus and potassium efficiency in cotton production |
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Authors: | J Colby Torbett Roland K Roberts James A Larson Burton C English |
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Institution: | (1) Department of Agricultural Economics, The University of Tennessee, 2621 Morgan Circle, Knoxville, TN 37996-4518, USA |
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Abstract: | Site-specific information technologies (IT) provide knowledge about the spatial variability within a field to improve the
efficiency of inputs through variable-rate (VR) applications. Identifying factors that influence farmers’ perceptions of the
importance of precision farming (PF) technologies in improving the efficiency of phosphorus (P) and potassium (K) fertilizer
applications can help to determine why different groups of farmers adopt PF. Knowing these factors can be useful in targeting
specific groups of farmers to adopt PF and increase fertilizer efficiency to meet crop needs and reduce P and K losses to
the environment. Data were obtained from a 2001 mail survey of cotton (Gossypium hirsutum L.) farmers in six southeastern states in the United States of America. Ordered logit analysis was used to evaluate the level
of importance to those who had adopted PF technologies placed on such technologies they had used to improve the efficiency
of P and K applications. Results showed that such farmers found soil sampling by management zone or on a grid, and on-the-go
sensing most important. Precision farmers who used mapping and remote sensing found PF technologies least important. Older
precision farmers who rented larger proportions of their land and used computers for farm management were more likely than
other precision farmers to place greater importance on PF technologies in improving the efficiency of P and K applications. |
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Keywords: | Cotton Information technology Ordered logit Precision agriculture Variable-rate-technology |
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