DRY BEAN SEED YIELD UNDER RAINFED CONDITIONS WITH TRADITIONAL AND IMPROVED TECHNOLOGY IN AGUASCALIENTES, MEXICO

摘要

Traditionally, producers of dry beans, under rainfed conditions in the semiarid North Central region of Mexico, sow bean in furrows 0.76 m width. Soil tillage is made with a pass of plowing disc and one or two passes of disking. Also, it is very common that the crop of bean under rainfed conditions is not fertilized, that fertilizers are applied in inappropriate quantities, or that fertilization is made in epochs where plants does not intake totally the fertilizer. Plant density oscillates between 85,000 and 90,000 plants per hectare, and there are few farmers who made rain harvest and soil conservation practices. With rain harvesting, crop will have more soil moisture that if this practice is not realized (Padilla et al., 2008), so that there willbe more water for a higher plant density, but plants will need more nutrients so that additional fertilization will be needed.