Corn yield in two planting densities under different cover forages

Abstract

Due to the great exploration of Cerrado soils (Brazilian Savannah) and the use of no tillage system as a conservation method, aiming to increase crop productivity and the importance of the sector to the country economic balance, it gives the relevance of the study in question. The objective was to evaluate the productivity and development of maize sown under different plant populations and land cover. The experiment was established in IFTM in Uberaba, State of Minas Gerais, Brazil, Oxisol. We used an experimental design of randomized blocks in a 2x6 factorial design with three replications and with two planting densities (80 and 100 thousand plants ha^-1) and six cover crops (Brachiaria decumbens, Brachiaria brizantha cv. Marandu, Panicum maximum cv. Mombasa, Panicum maximum cv. Tanzania, Brachiaria brizantha cv. Xaraés, Cynodon spp. cv. Tifton-85). At harvest time we evaluated plant height, ear height and final population and after harvesting we evaluated the prolificacy and yield. The different coverage did not influence the culture development and production. The smallest population provided better results regarding corn production.