Owing to its contribution to the maintenance of carbon stocks, soil nitrogen and nutrient cycling for subsequent crops, the integrated systems become increasingly important for agricultural conservation. Thus, the objective of this study was to evaluate the biomass production of and total nutrient in Brachiaria spp. and Panicum maximum forage grasses used as mulch and soybean yields in an integrated crop–livestock system and second-crop maize succession system. The treatments consisted of the following cropping systems: Xaraes palisadegrass intercropped with soybean, Congo grass intercropped with soybean, Mombaça guinea grass intercropped with soybean, Tamani guinea grass intercropped with soybean and a soybean/maize succession system. The forage grasses were established during the soybean R6–R7 stage. Compared with Congo grass, Xaraes palisadegrass, Mombaça guinea grass and Tamani guinea grass produced more biomass and equivalent amounts of fertilizer returned to the soil and resulted in greater nutrient cycling, indicating the benefits of these grasses for use as mulch in integrated production systems. Maize had a greater C/N ratio, but the forage grasses also exhibited high potential by protecting the soil until the end of the soybean development cycle. The use of an integrated crop–livestock system combined with a forage cropping system provided greater soil nutrient cycling than the maize cropping system did, which resulted in increased soybean yields, thus contributing to the sustainability of agricultural systems.

由于其对维持随后的作物的碳储量，土壤氮和养分循环的贡献，综合系统对农业保护越来越重要。因此，本研究的目的是评估腕带属植物的生物量和总养分。和最大恐慌在作物－牲畜综合系统和次季玉米演替系统中，用作草料和大豆单产的牧草。这些处理包括以下种植系统：大豆间作的南美黑杨（Xaraes palisadegrass），大豆间作的刚果草，大豆间作的蒙巴萨豚鼠草，大豆间作的塔玛尼豚草和大豆/玉米演替系统。饲草在大豆R6-R7阶段建立。与刚果草相比，非洲草（Xaraes palisadegrass），蒙巴萨（Mombaça几内亚）草和塔马尼（Tamani）几内亚草产生更多的生物量，并且等量的肥料返回土壤，并导致更大的养分循环，这表明这些草用作综合生产系统中的覆盖物的好处。玉米的C / N比更高，但是饲草还具有保护土壤的潜力，直到大豆发育周期结束。作物－畜牧业综合系统与牧草种植系统的结合使用比玉米种植系统提供了更大的土壤养分循环，从而增加了大豆产量，从而促进了农业系统的可持续性。