Biomass yield in different plant populations of the maize cultivar Zea mays L. AG 1051 under rainfed conditions in the wild alagoas / Rendimento de biomassa em diferentes populações de plantas do cultivar de milho Zea mays L. AG 1051 nas condições de sequeiro no agreste alagoano

Abstract

The study was conducted at the Polo Agrifood Arapiraca, Agreste region of Alagoas state, characterized by a short rainy season, which occurs mainly in the months of May, June and July. The purpose was to test the growth and development of new cultivar of corn (Zea mays L.) introduced in the region, under rainfed conditions, relating that growth and development to competition for nutrients and water from the soil. The motivation arose because of the need to study the agricultural performance of corn plants in the region, used commonly in food and feed. The plants were grown in three different spacing, with populations of 104,166, 125,000 and 156,250 plant per hectare. During testing it was found, also, the production of plant organs subjected to fertilization at different times. Was evaluated total biomass at harvest to form silage, as well as the production of leaf and stalk. Was also evaluated the production of grain at harvest thereof, as indicated by the seed producer. In general, a larger population of plants promotes a higher yield of biomass and organs vegetables, even with the possibility of greater competition for nutrients and water in the soil. Leading to ponder the use of large populations of plants of maize per hectare in order to increase the yield of biomass even under rainfed conditions in the Agreste region of Alagoas.

Keywords

• forage plants
• semiarid region
• population density