农民羣众对土壤物理性貭有很深刻的认識,常常根据土壤物理性貭来評价土壤生产力。土壤耕性对农业生产具有很重要的意义。耕性不仅指耕作的难易,对作物的生长也有密切的关联。羣众对土壤耕性的利用和改良都有很丰富的經驗,下面是我們在北京郊区的初步总結。 The peasants have a deep understanding of soil physics and often evaluate soil productivity based on their physical properties. Soil tillage is of great importance to agricultural production. Tillage refers not only to the difficulty of farming but also to the crop’s growth. The masses have extensive experience in the utilization and improvement of soil tillage. Below is a brief summary of our suburb in Beijing.