Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé
On-farm field experiments establish as a long-term network in 2000, to evaluate responses to N, P, and S in wheat, soybean, and maize in the southern Santa Fe and Southeastern Cordoba regions. Evolution of soil properties are evaluated periodically in teh different treatments.
IPNI-2000-ARG-12
01 Feb 2016
Economic analysis of fertilization management with focus on the long term
Paper published at Ciencia del Suelo (Argentina)
Responses in wheat at San Alfredo
| A scientific article on the economical analysis of of the Nutrition Network CREA Southern Santa Fe has been published in the last issue of Ciencia del Suelo (Argentina). The network is a joint project of CREA Southern Santa Fe, IPNI, and ASP started on 2000/01 with 11 on-farm experiments. The main objective is to evaluate direct and residual effects of N, P, and S fertilization in field crop rotations of the Central Pampas of Argentina. The study reports on the first 14 years of 5 sites, and shows that soil fertility level, cropping history, rotation, and yield level determined site-specific nutrient responses, efficiencies, and economic performances. The most profitable was the NPS treatment, except in cases with high soil P level, where the NS treatment was the best option. These treatments generated annual profits from 77 to 392 US$ ha-1, and return on investments from 1.64 to 2.38. In a long-term view, these results highlight the economical sustainability of fertilization management under a reposition criterion. To know more on the CREA Southern Santa Fe Nutrition Network, please click at http://research.ipni.net/project/IPNI-2000-ARG-12 |
Additional Resources
Paper at Ciencia del SueloSize: 1.31 MB