Semeadura em fileira dupla e espaçamento reduzido na cultura da soja = Sowing in twin or narrow rows in soybean crop

Agro@mbiente On-line

Fernando Panison¹  Alvadi Antonio Balbinot Junior²  Julio Cezar Franchini²  Henrique Debiasi²  Sergio de Oliveira Procópio³ 

[1] 3 Estagiário da Embrapa Soja;Pesquisador da Embrapa Soja;Pesquisador da Embrapa Tabuleiros Costeiros;

关键词: Glycine max;    Grain yield;    Plant density;    Spatial plant arrangemen;   

DOI  :  

来源: DOAJ

【 摘 要 】

Alterations in the spatial arrangement of soybean plants might provide significant increases in soybean grain yield, without changing the sustainability of production systems. This research aimed to evaluate the performance of the BRS 294 RR soybean cultivar in twin row and narrow row spacing and different seeding rates. The experiment was carried out in Londrina, PR, from November 2011 to March 2012. The randomized complete block experimental design was used in a 5x2 factorial arrangement with three replications. The treatments were formed by combining five row spacings (19 cm, 38 cm, 57 cm, twin row of 19/38 cm, and twin row of 19/57 cm) with two seeding rates (375,000 and 562,500 seeds ha-1). The narrow row reduced the soybean grain yield. The twin row produced grain yields similar to those seen with traditional soybean spacing. The higher seeding rate did not result in higher soybean yields in all row spacings evaluated, demonstrating the phenotypic plasticity of the cultivar evaluated

【 授权许可】

Unknown