Optimization of soil fertility management across different socio-economic gradients : A case of smallholder maize-based agro-ecosystems in Central Kenya [abstract] [on line]J M Macharia,S K Kimani,Rose Adhiambo Nyikal,L N Kimenye,Joshua J Ramischmag(2007)引用 23|浏览2暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要