气候变化领域集成服务门户(CCPortal): Effects of planting basins and farmyard manure addition on soil carbon and nitrogen pools under on-farm conditions in Makueni county of Kenya

CCPortal

DOI	10.1111/sum.13008
	Effects of planting basins and farmyard manure addition on soil carbon and nitrogen pools under on-farm conditions in Makueni county of Kenya
	Kichamu-Wachira, Edith; Xu, Zhihong; Reardon-Smith, Kathryn; Winowiecki, Leigh Anne; Ayele, Gebiaw; Biggs, Duan; Magaju, Christine; Taresh, Sabah; Hosseini-Bai, Shahla; Omidvar, Negar
发表日期	2024
ISSN	0266-0032
EISSN	1475-2743
起始页码	40
结束页码	1
卷号	40 期号:1
英文摘要	Climate change, land degradation and inadequate soil nutrients pose significant threats to food security and agricultural sustainability. This study aims to examine the effects of planting basins with farmyard manure on soil total carbon (C), nitrogen (N), isotopic C (delta C-13) and N (delta N-15) compositions within smallholder-managed farms in Makueni County, Kenya. The study involved two management practices: planting basins with manure (PM) and conventional farming practices (FP) in 12 experimental sites. Soil samples were taken at three depths (0-10, 10-20 and 20-40 cm), with three replicates for each treatment. Significant interactions were observed between land management practices and sites as well as land management practices and soil depth on soil total C and N. At each of the 12 sites, soil total C was higher under PM (ranging from 0.44% to 1.86%, p < .05) than FP management (ranging from 0.35% to 1.37%), across all soil depths. Soil total N concentrations ranged from 0.027% to 0.100% under FP and (0.060% to 0.190%, p < .05) under PM management. Across soil depths, higher (less negative) soil delta C-13 values were observed under conventional farmer practice (range - 22.5 parts per thousand to -17.1 parts per thousand) compared with PM management range (-24.3 parts per thousand to -18.1 parts per thousand). Soil delta N-15 was significantly enriched under PM management (range: 7.4 parts per thousand to 12.6 parts per thousand, p < .05) compared with the conventional farmer practices (range: 6.1 parts per thousand to 9.8 parts per thousand, p < .05). The findings show that planting basins with farmyard manure offers both climate mitigation and adaptation benefits by increasing soil C contents and improving soil fertility. The study provides insights into the real-world implications of these practices, emphasizing the potential of planting basins with manure in enhancing soil quality and climate resilience.
英文关键词	climate-smart; manure; planting basins; soil carbon; total N
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:001136052700001
来源期刊	SOIL USE AND MANAGEMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291113
作者单位	Griffith University; University of Southern Queensland; CGIAR; World Agroforestry (ICRAF); Griffith University; Northern Arizona University; University of Basrah
推荐引用方式 GB/T 7714	Kichamu-Wachira, Edith,Xu, Zhihong,Reardon-Smith, Kathryn,et al. Effects of planting basins and farmyard manure addition on soil carbon and nitrogen pools under on-farm conditions in Makueni county of Kenya[J],2024,40(1).
APA	Kichamu-Wachira, Edith.,Xu, Zhihong.,Reardon-Smith, Kathryn.,Winowiecki, Leigh Anne.,Ayele, Gebiaw.,...&Omidvar, Negar.(2024).Effects of planting basins and farmyard manure addition on soil carbon and nitrogen pools under on-farm conditions in Makueni county of Kenya.SOIL USE AND MANAGEMENT,40(1).
MLA	Kichamu-Wachira, Edith,et al."Effects of planting basins and farmyard manure addition on soil carbon and nitrogen pools under on-farm conditions in Makueni county of Kenya".SOIL USE AND MANAGEMENT 40.1(2024).