The perennial forage peanut is a stoloniferous, perennial tropical legume with potential for use in pastures. Based on the hypothesis that under intermittent stocking herbage accumulation would follow a similar pattern to that described for tropical forage grasses, the objective of this study was to evaluate canopy characteristics and herbage accumulation of forage peanut subjected to strategies of rotational grazing management. Treatments corresponded to all possible combinations of two grazing frequencies (regrowth interrupted at 95% and maximum canopy light interception – LI95% and LIMax) and two grazing severities (post-grazing canopy heights (CHs) equivalent to 40 and 60% of the pre-grazing heights). Treatments were imposed to experimental units during an adaptation period (from November 2014 to January 2015) and the subsequent experimental period lasted from February 2015 to April 2016, comprising two consecutive pasture growing seasons with no interruption between them (summer I to summer II). The pre-grazing targets of LI95% and LIMax corresponded to CHs of 13 and 18 cm, respectively. Forage peanut showed high grazing tolerance as pre-grazing leaf area index (except during summer I and autumn/winter), total herbage, and leaflet dry matter accumulation varied only with seasons. Higher rates of herbage production were recorded during summer I and summer II, followed by those during late and early spring and autumn/winter. Since there was no difference in the pattern of herbage accumulation between LI95% and LIMax and stolons predominated at the bottom of the canopies, forage peanut may be rotationally grazed with greater flexibility than most tropical forage grasses. Recommended pre-grazing CHs are within 13 and 18 cm, and post-grazing heights between 40 and 60% of the pre-grazing height.

中文翻译：

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牧草花生的轮牧管理

多年生草料花生是一种有匍匐茎的多年生热带豆科植物，具有在牧场中使用的潜力。基于在间歇放养下牧草积累将遵循与热带牧草相似的模式的假设，本研究的目的是评估轮牧管理策略下牧草花生的冠层特征和牧草积累。处理对应于两种放牧频率的所有可能组合（再生中断 95% 和最大树冠光拦截 - LI95%和李最大限度) 和两个放牧严重程度（放牧后冠层高度 (CHs) 相当于放牧前高度的 40% 和 60%）。在适应期（2014 年 11 月至 2015 年 1 月）对实验单位进行处理，随后的实验期从 2015 年 2 月持续到 2016 年 4 月，包括两个连续的牧场生长季节，它们之间没有中断（夏季 I 到夏季 II）。LI的放牧前目标95%和李最大限度分别对应于 13 和 18 厘米的 CH。牧草花生表现出较高的放牧耐受性，因为放牧前叶面积指数（夏Ⅰ期和秋冬季除外）、总牧草量和小叶干物质积累仅随季节变化。在夏季 I 和夏季 II 记录了较高的牧草产量，其次是春末春初和秋/冬。由于 LI 之间的牧草积累模式没有差异95%和李最大限度和匍匐茎在冠层底部占主导地位，饲料花生可以比大多数热带饲料草更灵活地进行轮牧。建议放牧前的 CH 在 13 到 18 厘米之间，放牧后高度在放牧前高度的 40% 到 60% 之间。