Resumo

MARTIN, Yoannis; RODRIGUEZ, Y. E; MOREJON, R  e  SOTO, F. El sistema intensivo de cultivo del arroz (SICA) disminuye la cantidad de semillas para la siembra, aumenta los rendimientos agrícolas y ahorra el agua de riego. cultrop [online]. 2010, vol.31, n.1, pp.00-00. ISSN 0258-5936.

The work was developed at Los Palacios Rice Research Station for three years and later at small-scale producers´ areas belonging to a non-specialized system (popular rice) as an agricultural extension. The study consisted of determining the effect of seedling age, plant spacing and seedling number per site on agricultural yield. Results showed a seed amount reduction in the nursery, to the value of 5 kg.ha-1.year-1, which represent between 35 and 40 % of that used in the traditional transplanting system. In addition, agricultural yields increased up to 2.0 t.ha-1; there was a greater tillering and root system development per plant compared to the check control. On the other hand, when crop irrigation was discontinued for 21 days, 3 300 m³.ha-1.year-1 of water were saved.

Palavras-chave : rice; cropping systems; transplanting; age; seedlings; spacing; seed; yield.

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