杨树速生丰产林肥料及施肥技术

Popular are regarded as one of the highest-yield timber trees in the north of China because of the fast-growing. Many varieties of the popular have been improved for the production of the pulpwood and timber forest. But there are more potential on fertilizer and technique of fertilization of the popular in the wood production of short period. The research has reviewed on purpose, theories, period, manner and method for use of fertilization, and has summarized on category, ingredient, application rate and response for fertilizer on popular. Plantation in distribution of popular, diagnosis before, production of special fertilizer for popular, protection soil form pollution, and steps of management have been suggested in the paper.