当今世界农业较发达的美国、日本、法国和苏联正积极采取各种现代科学技术,大力开发、利用物理肥源。我国沿海一些地区试用各类物理肥料,取得了极好的经济效益。目前,物理肥料的品种有:光肥物理肥料应用最广的首推光肥。经各国专家多年研究发现,利用光谱中特定波段的可见光,直接照射植物株体将会产生特别刺激,促使植物纤维生长,以利增加植物的营养成份。若用红光定时照射苹果、梨、桃等结果植物,果实早熟甜美可口,糖分、维生素C和微量元素大幅度提高。如用红光照射黄瓜,结蒂成熟期超前一个月,产量翻两番。而用兰色光照射大豆,作物结荚成熟期缩短一个月,蛋白质提高2%。声肥苏联、法国等许多植物学家和园艺学家一致认 The United States, Japan, France and the Soviet Union, with more advanced agriculture in the world today, are actively adopting various modern science and technology and vigorously developing and utilizing physical fertility sources. In some parts of China’s coastal areas try various kinds of physical fertilizers and achieved excellent economic benefits. At present, the varieties of physical fertilizers are: Light fertilizer physical fertilizer the most widely used light fertilizer. Years of research by experts from various countries found that the use of visible light in a specific wavelength band in the spectrum directly imparts special stimuli to the plant body to promote the growth of plant fiber so as to increase the nutritional content of the plant. If the red light regularly irradiated apples, pears, peaches and other fruiting plants, fruit sweet and delicious precocious, sugar, vitamin C and trace elements increased significantly. Such as red light cucumber, knot mature one month ahead of schedule, quadrupling the output. The use of blue light irradiation of soybeans, crop pod maturity shortened a month, 2% protein. Acoustic fertilizer Soviet Union, France and many other botanists and horticulturalists agreed