Using legumes in forage mixes can help decrease the use of nitrogen fertilizers and possibly increase the nutritive value of pasture. The aim of the current study was to determine animal production and behavioural and ingestion parameters by evaluating the production and nutritive value of Aruana grass (Panicum maximum‘Aruana’) intercropped with forage peanut (Arachis pintoi‘Amarillo’) or fertilized with nitrogen. The treatments were N200 (200 kg N/ha per season – summer and winter), 100N + PE (100 kg N/ha per season plus pasture mixture with forage peanut) and N100 (100 kg N/ha per season). The presence of forage peanut in the pasture did not replace nitrogen fertilization as the pasture fertilized with 200 kg of nitrogen had a greater leaf/stem ratio (0.66v.0.54), stocking rate (2600v.2290 kg live weight/ha), average daily gain (0.880v.0.700 kg/day) and live weight gain (LWG) (652v.468 kg/ha) during summer. During winter, no effect of increased nitrogen fertilization on pasture and animal production was observed. In the total study period (summer + winter), a greater LWG (897v.741 kg/ha) occurred when a higher quantity of nitrogen (N200) was placed in the pasture compared to the insertion of forage peanuts in the system.

中文翻译：

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用豆科植物在温带品种种植的热带牧场中部分替代氮肥以生产肉牛

在草料混合物中使用豆类有助于减少氮肥的使用，并可能增加牧场的营养价值。本研究的目的是通过评估阿鲁阿纳草的生产和营养价值来确定动物生产和行为和摄取参数。大麦穗'Aruana') 与牧草花生 (花生'Amarillo'）或施氮肥。处理是 N200（每季 200 kg N/ha - 夏季和冬季）、100N + PE（每季 100 kg N/ha 加上牧草与饲料花生的混合物）和 N100（每季 100 kg N/ha）。草场中饲草花生的存在并没有取代施氮肥，因为施氮 200 公斤的草场具有更大的叶/茎比（0.66五。0.54), 备货率 (2600五。2290 公斤活重/公顷），平均日增重（0.880五。0.700 公斤/天）和活体重增加 (LWG) (652五。468 公斤/公顷）在夏季。在冬季，没有观察到增加氮肥对牧草和动物生产的影响。在整个研究期间（夏季 + 冬季），更大的 LWG（897五。741 kg/ha) 与在系统中插入饲料花生相比，在牧场中放置更多的氮 (N200) 时发生。