为了防治果园杂草,济南正庄农业园在田间和大棚里,种下了岩垂草和黑麦草。通过人工选择,这两种有益的草正在挤占有害杂草的生存空间。这些有意种植的草,不仅不妨碍果树的营养吸收,而且还能通过粉碎还田培肥地力。“以草治草”这一在理论上并不新鲜、但生产中很少应用的生物防治法,在这里发挥着作用。种益草防害草位于济南市历城区唐王镇的正庄 In order to prevent orchards weeds, Jinan Zhengzhuang Agricultural Park in the fields and greenhouses, planted with rock weeds and ryegrass. By artificial selection, these two beneficial species are squeezing the weed living space. These deliberately planted grasses not only do not interfere with the nutrient absorption of the fruit trees but also fertilize the land by crushing it back into the fields. “To grass” This is not a theory in theory, but rarely used in the production of biological control law, where play a role. Kinds of beneficial grass to prevent grass located in the city of Jinan City, Tang Zheng Zheng Zhuang