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Forage yield and quality response of Napier grass (Cenchrus purpureus) to different dry season harvesting management under the subhumid agroecology of western Ethiopia
African Journal of Range & Forage Science ( IF 1.4 ) Pub Date : 2022-05-10 , DOI: 10.2989/10220119.2022.2048418
Abuye Tulu 1 , Mekonnen Diribsa 1 , Worku Temesgen 1
Affiliation  

A 3 × 2 factorial study was conducted in 2015, 2016 and 2017, to assess the impact of dry season cutting management on fodder yield and quality of Napier grass. Three harvesting times (November, January and March) and two stubble- cutting heights (20 and 30 cm) were used in the study. The results revealed that the dry matter (DM) yield and leaf:stem ratio records in 2015 and 2016 were much higher than in 2017. Tilling performance was lower in 2017 than in 2015 and 2016. The highest DM yields were recorded during harvesting time in March. In the November harvest, however, the leaf:stem ratio was greater. In addition, tilling performance was better in March and November than it was in January. Overall, cutting at a height of 30 cm resulted in better DM yield and tiller numbers than cutting at a height of 20 cm. Experimental years and cutting height did not affect crude protein (CP), neutral detergent fibre (NDF) or acid detergent fibre (ADF). Harvesting times did, however, affect CP, NDF and ADF. As CP was greater in November than in March and both NDF and ADF levels were higher in March, cutting in November at 30 cm is advised.



中文翻译:

埃塞俄比亚西部半湿润农业生态下龙胆草(Cenchrus purpureus)对不同旱季收获管理的饲草产量和品质响应

2015年、2016年和2017年进行了一项3×2析因研究,评估旱季刈割管理对纳皮尔草饲料产量和质量的影响。研究中使用了三个收获时间(11 月、1 月和 3 月)和两个灭茬高度(20 和 30 厘米)。结果显示,2015年和2016年的干物质(DM)产量和叶茎比记录远高于2017年。2017年的耕作性能低于2015年和2016年。DM产量最高记录在2017年的收获期。行进。然而,在十一月收获时,叶与茎的比例更大。此外,3月和11月的耕作效果好于1月。总体而言,在 30 厘米高度切割比在 20 厘米高度切割具有更好的干物质产量和分蘖数。实验年份和切割高度对粗蛋白(CP)、中性洗涤纤维(NDF)或酸性洗涤纤维(ADF)没有影响。然而,收获时间确实影响 CP、NDF 和 ADF。由于 11 月份的 CP 高于 3 月份,并且 3 月份的 NDF 和 ADF 水平都较高,因此建议在 11 月份以 30 厘米的幅度进行砍伐。

更新日期:2022-05-10
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