The use of nitrogen sources through fertigation requires improved techniques so that farmers may obtain maximum economic benefit combined with lower soil impact. The objective of this work was to evaluate different combinations of two nitrogen sources applied by fertigation on the growth and yield of banana cv. Grand Naine during the first, second and third production cycles. The experiment was arranged in a randomized block design with five replications, where six complementary percentages of urea and nitrate were applied by irrigation water in a drip irrigation system. Plant height, pseudostem diameter, total leaf área, productivity, fruit length and diameter of the second bunch were evaluated. Results showed that the combination of different nitrogen sources applied by fertigation did not affect the growth and yield of cv. Grand Naine.
Nitrogen fertilizer; nitrogen; fertirrigation