Effect of seed bed preparation, and seeding and harvesting methods on yield, in quinoa (Chenopodium quinoa Willd)

Rafael Valiente G.1, Jorge Etchevers B.2 y Edmundo Hetz H.1

An experiment was conducted in orden to determine the effect of seed bed preparation, and harvesting methods on the growth and yield of quinoa (Chenopodium quinoa Willd). The trial was carried out on a soil of the Diguillin series, in the province of Ñuble, Chile.
The average yield of the treatments was 29,6 qq/ha (14 per cent moisture content). The different soil preparation systems (intensive, semi-intensive, and minimum tillage) did not significantly affect yields.
Howerer, the vigor of the plants decreased as the intensity of tillage decreased.
Yields from plots harvested with a self-propelled cambine and cutter bar/thresher were 20.1 and 9.5 per cent, respectively, lower than those obtained from plots that were manually cut. Yields from plots with no thinning during the whole season were only 75 per cente of yields obtained from plots thinned to 12 plants per meter on the row.

1Ing. Agr. e Ing Agr., M.Sc., respectivamente. Instituto de Ingeniería Agrícola, U. de Concepción, Casilla 537, Chillán, Chile.
2Ing. Agr., Ph.D., Escuela de Agronomía, U. de Concepción, Casilla 537, Chillán, Chile.