Efeito da água disponível no solo e adubação orgânica no crescimento inicial do milho (Zea mays L.).

Abstract

Corn is one of the most produced cereals in the world. In Brazil, corn also has expressive production, reaching to be classified as the second most cultivated cereal in the whole country, losing the first position only for soybeans. The objective was to study the emergence and initial growth of corn plants fertilized with goat manure under two water availability regimes in soil. The treatment arrangement consisted of a 4 x 2 factorial, corresponding to four doses of goat manure (0, 4, 8 and 12 t ha-1) and two levels of available water (AD) of 50 and 100% of CC, maintained after The soil irrigations, with 8 treatments and four replications, totalizing the 32 experimental units. The experiment was carried out in experimental units composed of pots of 18 dm3 of capacity, manually seeding four seeds per pot. The plants were conducted for 20 days after sowing, where they were evaluated for emergence, initial growth and dry mass accumulation. The reduction of 50% of water in the soil does not have a negative impact on the emergence and initial growth of AG1051 maize plants. The dose of goat manure of 12 t ha-1 promoted the highest growth and accumulation of dry mass of maize plants.