豆科/禾本科间作对饲草资源利用及经济效益的影响研究进展OA

The development of the forage industry is a critical foundation for promoting the sustainable development of animal husbandry.Legume/grass forage intercropping,as a green and efficient planting pattern,improves soil quality and enhances resource-use efficiency of intercropped communities through mechanisms such as interspecific niche complementarity,biological nitrogen fixation,and synergistic resource utilization.However,the combined effects of different intercropping systems and management practices on resource utilization and soil quality vary considerably.Optimizing canopy structure and adopting precision management can convert competition into synergistic advantages,significantly increase light-use efficiency,net photosynthetic rate,and water-use efficiency of intercropped communities.Moreover,it improves nitrogen fertilizer use and promotes the activation of phosphorus and potassium through biological nitrogen fixation,nitrogen transfer,and microbial synergistic interactions.In addition,intercropping can improve soil quality,but its effects are influenced by many factors.Therefore,crop combinations should be selected according to local conditions,and appropriate management practices should be developed to achieve the goal of improving soil quality.Ultimately,the synergistic resource utilization and soil-improvement effects can be translated into significant economic benefits.This paper systematically reviewed studies from the past decade on legume/grass forage intercropping with respect to photosynthetic performance,water use,activation of nitrogen,phosphorus,and potassium nutrients,and soil quality,and summarized the impacts of different crop combinations,spatial configurations,and water-fertilizer management strategies on system productivity,aiming to provide a theoretical basis and technical references for establishing and optimizing a resource-saving,sustainable,and efficient forage production system.