气候变化领域集成服务门户(CCPortal): Enhancing irrigated forage crop production through water and nutrient management in the Ethiopian sub-humid highlands

CCPortal

DOI	10.3389/fsufs.2024.1373698
	Enhancing irrigated forage crop production through water and nutrient management in the Ethiopian sub-humid highlands
	Hussein, Misbah A.; Haileslassie, Amare; Derseh, Melkamu B.; Assefa, Tewodros T.; Riga, Fikadu T.; Adie, Aberra; Tebeje, Aschalew K.; Jones, Chris S.; Tilahun, Seifu A.
发表日期	2024
EISSN	2571-581X
起始页码	8
卷号	8
英文摘要	Introduction The increasing pressure on land and water resources, fueled by high population growth and climate change, has profound implications for crop yield and quality. While studies thrive for various crops, a notable research gap exists in understanding the responses of forage crops to irrigation and nutrient management in developing countries. This study aims to address this gap by assessing the impact of irrigation and fertilizer application on forage production in the Ethiopian sub-humid highlands.Methods The experiment focused on four forage varieties, namely Napier grass (Cenchrus purpureus) cultivars, ILRI-16791, ILRI-16819, ILRI-16803, and Guinea grass (Megathyrsus maximus) ILRI-144 cultivated in experimental plots. Three irrigation levels designated as IR60 (60% of total available soil water), IR80 (80%), and IR100 (100%) were applied, along with three fertilizer rates: organic manure at 30 t ha-1, and Urea-N at 100 kg ha-1 and 300 kg ha-1. Agronomic data including growth performance, forage dry matter yield, and nutritional quality were collected during two trial years.Results and discussion Among the various irrigation treatments, IR80 demonstrated the most favorable balance between forage yield, WUE, net benefit, and LWP. In addition, the highest DMY, WUE, net benefit, and LWP were obtained for UREA at the rate of 300 kg ha-1 while the lowest DMY and WUE were observed for UREA at the rate of 100 kg ha-1. Significant variations were observed among the four forage varieties, with Napier grass ILRI-16791 having the highest DMY (9.8 tons ha-1), WUE (39 kg ha-1 mm-1), LWP (0.28 USD m-3 for local cows, and 1.04 USD m-3 for crossbred cows), and net benefit (783 USD ha-1). For all forages combined, a 40 and 20% decrease in irrigation increased water use efficiency by 17 and 9.4%, respectively. These results indicate that a moderate level of deficient irrigation such as IR80 could be a viable water management strategy for irrigated forage, especially in water-scarce areas. The conserved water saved from the deficit irrigation can thus be used to irrigate additional land, contributing to a more sustainable and efficient water usage approach.
英文关键词	animal forage; deficit irrigation; full irrigation; water use efficiency; fertilizer response; livestock water productivity
语种	英语
WOS研究方向	Food Science & Technology
WOS类目	Food Science & Technology
WOS记录号	WOS:001234855200001
来源期刊	FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305124
作者单位	CGIAR; International Livestock Research Institute (ILRI); Bahir Dar University; CGIAR; International Water Management Institute (IWMI); CGIAR; International Water Management Institute (IWMI)
推荐引用方式 GB/T 7714	Hussein, Misbah A.,Haileslassie, Amare,Derseh, Melkamu B.,et al. Enhancing irrigated forage crop production through water and nutrient management in the Ethiopian sub-humid highlands[J],2024,8.
APA	Hussein, Misbah A..,Haileslassie, Amare.,Derseh, Melkamu B..,Assefa, Tewodros T..,Riga, Fikadu T..,...&Tilahun, Seifu A..(2024).Enhancing irrigated forage crop production through water and nutrient management in the Ethiopian sub-humid highlands.FRONTIERS IN SUSTAINABLE FOOD SYSTEMS,8.
MLA	Hussein, Misbah A.,et al."Enhancing irrigated forage crop production through water and nutrient management in the Ethiopian sub-humid highlands".FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 8(2024).