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A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment
Biochar2022
111 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 50
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Jun Meng,
Nanthi Bolan,
Jun Meng,
Nanthi Bolan,
Zheng Fang,
Yurong Gao,
Jun Meng,
Nanthi Bolan,
Hailong Wang,
Yurong Gao,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Jun Meng,
Fangbai Li,
Jun Meng,
Zheng Fang,
Nanthi Bolan,
Hailong Wang,
Lukas Van Zwieten,
Lukas Van Zwieten,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Zheng Fang,
Hailong Wang,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Fengchang Wu
Hailong Wang,
Hailong Wang,
Nanthi Bolan,
Fengchang Wu
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Fengchang Wu,
Fengchang Wu,
Da Dong,
Hailong Wang,
Hailong Wang,
Hailong Wang,
Fengchang Wu
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Fengchang Wu
Nanthi Bolan,
Fengchang Wu
Nanthi Bolan,
Hailong Wang,
Wenfu Chen,
B. F. Quin,
Wenfu Chen,
B. F. Quin,
Fengchang Wu,
Fengchang Wu
Nanthi Bolan,
Fengchang Wu
Fengchang Wu,
Hailong Wang,
Jun Meng,
Hailong Wang,
Fengchang Wu
Fengchang Wu
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Nanthi Bolan,
Fengchang Wu
Fangbai Li,
Fangbai Li,
Lukas Van Zwieten,
Fengchang Wu,
Hailong Wang,
Nanthi Bolan,
Fengchang Wu
Nanthi Bolan,
Hailong Wang,
Fengchang Wu
Fengchang Wu
Fengchang Wu
Nanthi Bolan,
Fengchang Wu
Jun Meng,
Hailong Wang,
Hailong Wang,
Wenfu Chen,
Nanthi Bolan,
Nanthi Bolan,
Wenfu Chen,
Hailong Wang,
Wenfu Chen,
Nanthi Bolan,
Nanthi Bolan,
Hailong Wang,
Nanthi Bolan,
Fengchang Wu
Wenfu Chen,
Fengchang Wu
Fangbai Li,
Hailong Wang,
Nanthi Bolan,
Hailong Wang,
Fengchang Wu
Summary
Researchers reviewed biochar-based nitrogen fertilizers — materials that combine charred organic matter with nitrogen — as a way to reduce fertilizer loss to the environment, which currently contributes to greenhouse gas emissions and water pollution, while improving crop yields and soil health.
Abstract Globally, nitrogen (N) fertilizer demand is expected to reach 112 million tonnes to support food production for about 8 billion people. However, more than half of the N fertilizer is lost to the environment with impacts on air, water and soil quality, and biodiversity. Importantly, N loss to the environment contributes to greenhouse gas emissions and climate change. Nevertheless, where N fertilizer application is limited, severe depletion of soil fertility has become a major constraint to sustainable agriculture. To address the issues of low fertilizer N use efficiency (NUE), biochar-based N fertilizers (BBNFs) have been developed to reduce off-site loss and maximize crop N uptake. These products are generally made through physical mixing of biochar and N fertilizer or via coating chemical N fertilizers such as prilled urea with biochar. This review aims to describe the manufacturing processes of BBNFs, and to critically assess the effects of the products on soil properties, crop yield and N loss pathways. Graphical Abstract