IPI International Potash Institute
IPI International Potash Institute

Research Findings: e-ifc No. 40, March 2015

Field day in LEM experimental area. Photo by T. Wiendl.

Economic Viability of Potassium Fertilization in Corn Production on Tropical Soils under no Tillage System

Wander, A.E.(1), O.F. da Silva(1), and T. Wiendl(2)
print version pdf download pdf 538 kB

(1)Embrapa Rice and Beans, P.O.Box 179, 75375-000 Santo Antonio de Goias, GO, Brazil. alcido.wander@embrapa.br; osmira.silva@embrapa.br
(2)International Potash Institute (IPI), Latin America Coordination, São Paulo, SP, Brazil.


Improving nutrient efficiency is a worthy goal and a fundamental challenge facing the fertilizer industry, and agriculture in general. The opportunities are there and tools are available to accomplish the task of improving the efficiency of utilizing applied nutrients. However, caution is needed to ensure that improvements in efficiency do not come at the expense of farmers’ economic viability or the environment. Judicious application of fertilizer best management practices, which include the slogan ‘right rate, right time, right place’ targeting both high yields and nutrient efficiency will benefit farmers, society, and the environment alike (Roberts, 2008).

This paper is therefore aimed at assessing the economic viability of different potassium (K) fertilizing practices in corn (maize) production under a no-tillage system.

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