“春燕自知春光逼,累断筋骨口含泥”。这是天府人民对著名土壤学家候光炯教授的崇高评价。候光炯教授于1905年出生在上海金山县。半个世纪以来,他废寝忘食,呕心沥血,几十年如一日,坚持试验、坚持调查研究,长期深入生产第一线,为解决我国和世界土壤科学、特别是农业土壤学中重大技 “Chunyan self-knowledge spring force, tired broken bones mouth mud.” This is a sublime remark by the Tianfu people to Professor Wei Guangjiong, a famous soil scientist. Professor Guang Guangjiong was born in 1905 in Jinshan County, Shanghai. For half a century, he has been eating all his life and worked painstakingly. With decades of trials and hard work, he has persisted in conducting investigations and studies and has long been in the first place for long-term production. In order to solve major problems in soil science in China and the world, especially in agriculture and soil science,