Antonio Tassio Santana Ormond, Rafaeli Henrique Freitas Noronha, Lavinia Vieira Brito, Sara Moreno Lacerda, Carlos Eduardo Angeli Furlani, Fernando João Bispo Brandão

ARRANGEMENTS POPULATION AND ROW SPACING IN THE DEVELOPMENT OF CORN

Introduction

Arrangements population and row spacing in the development of corn. Evaluate corn yield optimization using different plant populations and row spacings. Discover how twin-row spacing and high plant density improve crop quality and yield.

Abstract

Different arrangements between plants make it possible to optimizethe use of natural resources available in corn production, achieving better yield. Thus,this work aimed to evaluate some productive traits of the crop in different spatialarrangements. The leading production indicators of the corn were evaluated at theExperimental Farm of the São Paulo State University (FCAV – UNESP), campusin Jaboticabal – SP, Brazil—the statistical design in randomized blocks, with fourreplications. The treatments corresponded to 2-row spacings (single-row with 0.90mand twin-rows, interspersing spacing of 0.45m and 0.90m) and three plant populations(55,000, 60,000 and 65,000 plants ha -1), composing a 2 x 3 factorial. Confirmatoryand descriptive statistical analyses were carried out, and the statistical process controlconstructed control charts. Twin-row spacing showed the best results for yield andheight of the first ear. The 65,000 ha-1 population stood out for its lower data variability(smaller amplitude), providing more excellent quality in corn grain yield through spatialoptimization of available resources.

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