The application provides a kind of based on
ginkgo root
secretion regulation alfalfa nodulation growth-promoting forest-grass interplanting method.The method makes full use of
ginkgo under forest space, by
land preparation and fertilization between forest rows, constructs high
ridge square, selects high-quality
alfalfa seed for strip
sowing, combined with reasonable spacing and fixing
seedling, cultivation and weeding and other field management measures, realize the
normal growth and efficient utilization of alfalfa, provide a scientific and reasonable alfalfa interplanting mode.The application combines soil physical and
chemical index determination, systematically evaluates forest soil before and after alfalfa planting, confirms that the method can effectively improve soil physical and chemical properties, promote
ginkgo-alfalfa synergistic growth, has significant ecological benefits and application prospect.In addition, the application further verifies that ginkgo root
secretion has obvious growth-promoting effect on alfalfa
rhizobium, and can improve the expression level of alfalfa nod
gene, enhance the number and quality of nodule, so as to improve the production performance of alfalfa and soil improvement effect.