Produ o de mudas de esp谷cies forrageiras no sistema hidrop nico de leito flutuante (floating) com solu o nutritiva 角 base de biofertilizante ou adubo sol迆vel = Production of seedlings of forage species in floating hydroponics system with biofertilizer or soluble fertilizer

作者：Ricardo Probst; Sergio Augusto Ferreira de Quadros; Julio Graeff Erpen; Mario Luiz Vincenzi

来源：Acta Scientiarum - Animal Sciences, 2009.

• hidroponia
• pastagem
• missioneira gigante (Axonopus catharinensis)
• amendoim forrageiro
• maku
• hydroponic
• pasture
• Axonopus catharinensis
• forage peanut
• greater lotus

Neste trabalho objetivou-se avaliar a sobreviv那ncia das estacas e a produ o de mat谷ria seca na fase de cultivo de mudas das esp谷cies forrageiras missioneira gigante (Axonopus catharinensis), amendoim forrageiro (Arachis pintoi) e maku (Lotus uliginosus cv. Maku). No sistema hidrop nico de leito flutuante com solu o nutritiva 角 base de biofertilizante ou adubo sol迆vel. O delineamento experimental adotado foi o de blocos ao acaso em esquema fatorial 3 x 2, sendo tr那s esp谷cies forrageiras e duas solu es nutritivas. As esp谷cies n o apresentaram diferen a quanto 角 sobreviv那ncia (p = 0,225), independentemente do tipo de fertilizante (p = 0,92). No entanto, quando se quantificou a produ o de MS planta-1 proporcionada por cada uma dessas esp谷cies, o maku (p = 0,001) obteve as maiores quantidades (47,18 g), enquanto o amendoim forrageiro (19,90 g) e a missioneira gigante (16,81 g) foram semelhantes entre si (p = 0,227), tendo o mesmo ocorrido entre os fertilizantes (p = 0,559). Deste modo, as tr那s esp谷cies possuem condi es semelhantes de sobreviv那ncia, independentemente da concentra o de nutrientes da solu o nutritiva, com o maku proporcionando a maior produ o de MS planta-1. The aim of this work was to evaluate the survival and dry matter production during the seedling culture phase of three forage species: Axonopus catharinensis, forage peanut (Arachis pintoi), and greater lotus (Lotus uliginosus cv. Maku), in a floating hydroponic system using biofertilizer or soluble fertilizer. The experimental design adopted was randomized blocks in a 3 x 2 factorial scheme, with three forage species and two fertilizers. There was no difference between species with regard to survival (p = 0.225), regardless of the fertilizer used (p = 0.92). However, when dry matter production was considered, Maku (P=0,001) showed greater weight (47.18 g), while there was no difference (p = 0.227) in weight between Arachis pintoi (19.90 g) and Axonopus catharinensis (16.81 g) or between fertilizers (p = 0.559). Thus, all three forage species have similar survival conditions, regardless of nutrient concentration of the fertilizer, and Maku had greater dry matter production.