Soil preparation for winter beet sowing [in Spain] | Preparation du lit des semailles de la betterave d'automne
1999
Menacho Roman, J.M. (Grupo Remolachero de Cadiz, Jerez de la Frontera (Spain))
Southern Spain has the largest area in Spain for the cultivation of sugar beets. These beets grow during the winter and the preparation of the soil generally takes place in summer for rain-fed crops and at the beginning of autumn, after the summer crops, for irrigated land. This area of Spain is characterized by an almost complete lack of water in summer and a minimal amount of moisture in arid zones. This, together with the high degree of clay in the soil of the Guadalquivir Valley, makes the soil preparation difficult. In traditional soil preparation, using traditional tilling methods, the large, hard-to-break clods require a great deal of crushing. However, this work does not guarantee a good seedbed that will lead to good sprouting and, consequently, good plant thickness. The traditional techniques are being abandoned because of their high cost, and new practices are being introduced, such as direct seeding and minimum tillage. Even though the results are good in clay soils with good structure, the technique is complicated and its widespread use is difficult.
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