Desempenho agronômico de três cultivares de soja em diferentes épocas de semeadura em duas safras

• Autor(a) principal: Stülp, Marcibela
• Data de Publicação: 2009
• Outros Autores: Braccini, Alessandro de Lucca e, Albrecht, Leandro Paiola, Ávila, Marizangela Rizzatti, Scapim, Carlos Alberto, Schuster, Ivan
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UFLA
• Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000500006; http://repositorio.ufla.br/jspui/handle/1/7018
• topic: Glycine max; Semeadura antecipada; Rendimento; Anticipated sowing; Yield

Growing soybean by using early maturing soybean cultivars in anticipated sowing has been a common practice in the west of Paraná State aiming at the safrinha corn (fall cropping), however, there has not been enough research reported about this fact. Therefore, the objective of this study was to evaluate the influence of sowing anticipation of three early maturing soybean cultivars during two agriculture years. For this purpose, competition experiments were installed at COODETEC, in Palotina, Paraná State. A randomized complete block design with four replications was carried out within two agriculture years (2003/2004 and 2004/2005) by using three early maturing soybean cultivars (CD 202, CD 215, and CD 216) sowed on five different days (09/15, 09/30, 10/15, 10/30, and 11/15). Data were collected and submitted to variance analysis and the interaction design was accomplished whenever necessary. It was verified that the preferable period for sowing was unfavorable to the seed production, especially in the second agriculture year. The highest seed yield for the three soybean cultivars was obtained from the sowing accomplished in October. Potentially, sowing anticipation might be a viable alternative to the west region of Paraná State.