人类从渔猎经济逐步过渡到农业经济之后,农产品便成为人类生存的最主要资源。随着社会经济和生产力的发展,人们开始研究总结农耕技术,探讨农业经营和管理,长期以来,出现了各种农业古典著作。农业的一大支柱是植物。人们要利用植物,必须先认识植物,鉴别植物。在长期的生产和生活实践中,古代人民积累识别植物的丰富经验,逐步上升到理论,形成了古代植物分类学、植物形态学和植物地理学。植物生长发育的根本是土壤,土壤的肥瘠,决定着植物的荣枯美恶。研究和认识土壤,改良土壤,保持土壤 After the gradual transition of mankind from fishing and hunting economy to agricultural economy, agricultural products have become the most important resource for human survival. With the development of social economy and productivity, people began to study and summarize farming techniques and explore agricultural management and management. For a long time, various kinds of agricultural classical works appeared. One of the main pillars of agriculture is the plant. People want to use plants, we must first understand plants, identify plants. In the long period of production and daily life practice, the ancient people accumulated rich experience in identifying plants and gradually rose to theory to form ancient plant taxonomy, plant morphology and plant geography. The root of plant growth and development is the soil, soil fertility, determines the beauty of the plant’s beauty. Study and recognize the soil, improve the soil, keep the soil