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.


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.

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Additional Resources

Paper at Ciencia del SueloSize: 1.31 MB