Corn crop performance using N180 fertilizer compared to the use of urea
DOI:
https://doi.org/10.14295/rbpa.v1i2.8Keywords:
nitrogen fertilizer, liquid form, yieldAbstract
Corn is one of the most fertilizer-demanding crops, especially nitrogen fertilizers. Inadequate supply of this nutrient is one of the main limiting factors for its productive potential, particularly during the reproductive stage. Based on this, the market already offers some options for nitrogen fertilizers, mostly in granular form and a few in liquid form; however, the predominant use is urea. In light of this, the present project aimed to test a liquid nitrogen source that is superior to urea, providing an alternative for a market that has been saturated with the same fertilizer for years. The experiment was conducted at the Lollo Agronegócios Research Station, located in Rio Verde, Goiás. The experimental design implemented is a Randomized Block Design (RBD), consisting of 4 treatments with 4 replications, in plots measuring 3 meters wide by 6 meters long, resulting in a total plot area of 18 m², and the total area of the experiment will be 288 m². The treatments were: control (no application), urea applied at V1 at a dose of 120 kg ha⁻¹ by broadcasting + application at V5 at a dose of 160 kg ha⁻¹ by broadcasting; N 180 applied at sowing at a dose of 50 L ha⁻¹ + application at V1 by spraying at a dose of 132 L ha⁻¹ + application at V5 by spraying at a dose of 176 L ha⁻¹; and the last treatment will be N 180 applied at V1 by spraying at a dose of 132 L ha⁻¹ + application at V5 by spraying at a dose of 176 L ha⁻¹. The variables assessed are initial and final stand (pre-harvest), leaf sampling (appearance of female inflorescence), ear filling, percentage of lodging and breakage, plant height pre-harvest, number of ears per plant, height of ear insertion, weight of one thousand grains (PMG), and productivity in bags per hectare. The collected data were subjected to analysis of variance using the F test, and when significant, means were compared using Tukey's test (p < 0.05) with the aid of SASM-Agri software. It is expected that the nitrogen fertilizer N180 will be superior to urea in terms of gains in the assessed variables, especially in productivity.
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Copyright (c) 2024 Luciano Silva Vieira Filho, Cristiano Henrique Ferreira, César Augusto Farias Roberto, Lázaro Sebastião Roberto, Christiano Lima Lobo de Andrade, Matheus Vinicius Abadia Ventura
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