l玉米和矮菜豆间作引言在拉丁美洲低海拔和中海拔的热带地区,矮菜豆一般是与玉米间作。据估计该地区矮菜豆80％由小农户生产,而且主要是以间作方式生产。虽然,机械化单作矮菜豆的技术已有所发展,但对间作影响很小。种植密度是农家可以直接控制的农学措 Introduction to Maize and Pied Beans Introduction In low-altitude and mid-altitude tropical regions of Latin America, low-lying beans are usually intercropped with maize. It is estimated that about 80 per cent of the poached peas in the area are produced by small farmers and are mainly produced by intercropping. Although mechanized single-cropped beans have been developed, there is little effect on intercropping. Planting density is the agronomic measure that farmers can directly control