Doses of nitrogen and chicken litter on ‘Mandirituba’ chamomile yield - DOI: 10.4025/actasciagron.v31i1.6632

Abstract

This work aimed to evaluate yield and morphological characteristics of ‘Mandirituba’ chamomile capitula as functions of the use of nitrogen (3, 18, 30, 42 and 57 kg ha^-1), in ammonia sulfate form, and semi-decomposed chicken liter (1,000; 6,000; 10,000; 14,000 and 19,000 kg ha^-1) doses. The treatments were determined using Plan Plueba III experimental matrix, which resulted in the N and chicken litter combinations, respectively: 18/6,000; 18/14,000; 42/14,000; 30/10,000; 3/6,000; 57/14,000, 18/1,000 and 42/19,000 kg ha^-1. The experimental design used was randomized blocks with nine treatments and four replications. Plant height, total fresh and dry mass, number and height, diameter and single dry mass of capitula were evaluated. The greatest plant heights were observed in the treatments 57/14,000 kg ha^-1 (37 cm) and 42/19,000 kg ha^-1 (38 cm) of nitrogen and chicken litter, respectively, 85 days after transplant. The highest yield of fresh and dry mass of capitula were obtained from combinations of the greatest doses of chicken litter with nitrogen. Diameters (variation between 1.87 and 2.01 cm), heights (variation between 0.65 and 0.79 cm) and single dry mass (variation between 0.10 and 0.15 g) of capitula were not influenced by treatments.