QUALIDADE DE CEBOLA EM FUNÇÃO DE DOSES DE NITROGÊNIO E ÉPOCAS DE PLANTIO
2015
GARDÊNIA SILVANA DE OLIVEIRA RODRIGUES | LEILSON COSTA GRANGEIRO | MARIA ZULEIDE DE NEGREIROS | ANA CLÁUDIA DA SILVA | JOSÉ NOVO JÚNIOR
The classification of the onion made based on the diameter of the bulbs and the quality measured by soluble solids, titratable acidity, relation soluble solids /acidity e a pungency due to nitrogen and planting times were evaluated in two experiments conducted from december 2011 to April 2012 and August tha december to 2012, horta in the Department of Plant Sciences Universidade Federal Rural do Semi-Árida em Mossoró-RN. The experimental design was a randomized block with four replications. The treatments consisted of N rates: 0, 34, 67, 101, 134 and 168 kg ha -1 N. Each experimental unit consisted of a bed of 3,0 x 0,8 m, satisfaction eight rows of plants spaced 0.10 x 0.10 m. Was used as floor area, the six central rows of plants in the flowerbed. The bulb pungency increased with the supply of nitrogen to the dose of 93 kg ha-1 . Acidity and soluble solids reduced with the application of nitrogen. The onion planting in August 2012 favored the production of better quality bulbs.
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