SEEDLING SYSTEM, FERTILIZATION, AND TILLAGE EFFECTS ON GRAIN YIELD OF DRY BEANS UNDER RAINFED CONDITIONS IN AGUASCALIENTES, MEXICO

摘要

Traditionally, producers of dry beans under rainfed conditions in the semiarid North Central region of Mexico sow beans in 0.76 m width furrows; and till the soil with a pass of the plow and one or two passes of disking. It is also very common that the bean crop is not fertilized under rainfed conditions, and that fertilizers are applied in inappropriate quantities, or are applied in periods where plants do not totally uptake the fertilizer. Plant density ranges between 85,000 and 90,000 plants per hectare, and there are few farmers who practice rain harvest and conservation practices. With rain harvesting, the crop will have more soil moisture than if this practice is not performed (Padilla et al., 2008), so that there will be more water for higher plant densities, however plants will need more nutrients.