Profitability analysis of the use of a variable dosing system for the differentiated application of fertilizer in corn crops

Resumen

Objective: a profitability comparison was made between corn production with the use of a variable doser and a conventional fertilizer doser. The variable doser for the differentiated application of fertilizer was built at CENEMA of INIFAP.

An experimental plot was established, applying the recommendations established in the technological package for grain corn production, by INIFAP, in the State of Mexico.With the variable doser, it was verified that the fertilizer needs of the soil required 11.5 % less than that supplied by a constant application doser. The yield obtained was 5.6 % higher than in the conventional one. The B/C benefit/cost ratio of corn production with the variable doser was 1.60, while with the conventional doser it was 1.44, for both cases the profitability is positive, with a difference of $0.16 cents.

The profitability with the use of the variable doser was higher than with the conventional doser.