DEVELOPMENT OF A COMPUTER APPLICATION FOR A RECOMMENDATION OF LIME AND FERTILIZER FOR CORN (Zea mays L.) AS MARANHÃO, BRAZIL

Abstract

Increase grain production to meet the need for food of the population that grows every day is a challenge. For this it is important to use practices that maximize agricultural productivity, as well as the management of fertilization and liming. The recommendation of these inputs is following tables according to your area, so many of these recommendations is done wrongly, due to regional applicability. Thus it is necessary to have a system that can overcome these barriers, and that such recommendations have as much technical criteria, clarity, and responsibility in the rational use of fertilizers and, in addition to maximizing the net income of farmers. For this purpose, we developed software, where it was structured using Excel 2010 and logic functions. This application is used for fertilizers and recommend specifically for corn (Zea mays L.) and perform the classification of soil through particle size analysis for the Maranhão State. After the analysis of results was possible concluded your efficiency when compared with others commercials applications.   KEY-WORDS: correction, fertilizers, technical criterion.