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晋、冀、蒙地处旱作区，气候条件恶劣，生产力水个低下，是我国较贫困地区之一。我们经过对该地区气候资源的分析，为合理利用本地区的有利条件，避开不利条件，推广以下几种间套混种方式，可提高开发的经济效益。所谓间作是指作物生育期相近的两种以上不同种属的作物在田间按?
Jin, Ji and Mongolia are located in dry farming areas with poor weather conditions and low water productivity, making them one of the poorest areas in China. After analyzing the climatic resources in the region, we have promoted the economic benefits of development in order to make good use of the favorable conditions in the region, avoid unfavorable conditions and promote the following mixed methods. The so-called intercropping refers to crop growth period similar to two or more different species of crops in the field by?