Abstract

TIGHE, Ricardo; LEONELLI, Gina; ALIAGA, Macarena  and  RODRIGUEZ, Mario. Evaluation of gorse as green manure in the production of biomass and protein chard. Idesia [online]. 2015, vol.33, n.2, pp.137-142. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292015000200015.

We assessed the response of biomass and protein production of chard (Beta vulgaris L. var. Cicla.), by using Ulex europaeus vs. Lupinus albus as green manure. Treatments were 1.6 kg of L. albus; 1.6 kg of U. europaeus and absolute control. The experimental units were 2 m² plots arranged in a randomized complete block with four replications. The data were analyzed by ANOVA and Tukey's tests at 5% significance. Plants of chard were established after 60 days of the incorporation of the green manure. Biomass production as well as proximal analysis was performed at 120 days after establishment. In addition, a soil analysis was performed at 184 after incorporation of green manure. The utilization of U. europaeus improved in 42% fresh biomass production when compared with the control (p≤0.05), however no differences were observed when it was compared with lupin (p>0.05). No differences were observed for dry matter production among the treatments (p>0.05). Water content it was 14% greater for treatments that included green manure. The levels of NPK in the soil were greater for U. europaeus treatment. The increase of green matter and protein in chard as well as the increase of NPK levels in the soil, support the use of U. europaeus as green manure.

Keywords : Beta vulgaris var. Cicla; fresh biomass; Lupinus albus; Ulex europaeus.

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