Taiwan Agricultural Research Institute



Chi-Ling Chen

Ya-Hui Shi

Chung-Yi Liao

 Ming-Hsien Chou

Ching-Lin Hsu

Cheng-Pin Lin

Ting-Hsun Hsiao

Wei-Ting Huang


Taichung City | Taiwan


Swine and cattle wastes are stipulated to be treated by three-step waste water treatment, then discharge to the surface water body in the past in Taiwan. About 50% of nitrogen will be lost during the treatment process and cause environmental issues such as environmental acidification and global warming. In addition, although the discharged effluent of treated waste water has fitted the standard of effluent, the total annual nutrient containing in effluent is equivalent near to 5 million packs of chemical fertilizer and rendered environmental. Applying the livestock manure on farmland would be one of the strategies to reduce the environmental impact and foster the circular agriculture. After the evaluation by 4-5 years field experiments, including the nutrient efficiency uptake by crop, public health concerning zoonoses occurrence and spread probability, odor emission, nitrogen leaching to groundwater and copper / zinc accumulation in soil and carbon cycling etc. The applications of livestock manure on farmland as fertilization have been approved by the government of Taiwan since 2011. Especially, biogas power generation by livestock waste is greatly encouraged from 2015 and applying biogas slurry/residue after the anaerobic fermentation on farmlands is promoted. Based on the nitrogen requirement of two crops of rice per year, about 55 thousand ha (7 %) farmland would be needed to dispose the total amount of manure generated. It is helpful indeed to reduce the nutrient contamination of surface water and chemical fertilizers consumed. And this practice can reduce annual about 1.4 million Mg CO2e emission and increase 22 thousand Mg CO2e soil carbon sequestration. However, since the cost of applying manure is higher than the chemical fertilizer and nutrient contents of manure are ever changing and unstable, there are still only 3000 ha of farmland applied with swine or cattle waste as manure up to now. The reuse amount is less than 5 % of total manure. Some strategies of governmental have been stipulated for the promotion of applying manure on farmland to reduce the environmental impacts and increase the soil carbon sequestration in the future.



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About us

Taiwan Agricultural Research Institute is affiliation the Council of Agriculture (COA) of the Executive Yuan situated. The institute is situated on an area of 145 hectares, including 128 hectares of irrigated research fields and 17 hectares for administration buildings, research facilities and boarding houses for trainees and visiting scientists. TARI is the most comprehensive agricultural research institute in Taiwan.



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  File Modified
PDF File Chi-Ling Chen_Manure application_2023.pdf May 26, 2023 by Chi-Ling Chen
PDF File Chi-Ling Chen_poster_2022.pdf May 16, 2022 by Chi-Ling Chen
PDF File Chi-Ling Chen_poster_2023.pdf May 26, 2023 by Chi-Ling Chen
PDF File Chi-Ling Chen_poster.pdf Apr 28, 2022 by Marc Bernard


  1. Thank you for sharing with everyone the work you are doing with agricultural sustainability in Taiwan. I would like to invite you to visit our Stand 19 - Agripower Australia, to learn about the benefits that silicon fertiliser has for conservation agriculture, soil and plant health, and carbon sequestration. Please leave a message for us if you would like to meet and talk more! www.agripower.com.au

  2. Anonymous

    Good evening. I am Dr. Nandini from BAIF Development Research Foundation, India. We are participating in this virtual EU Fair and have shared our work on 'Soil restoration for achieving sustainable livelihoods, climate change adaptation and mitigation' through stand no 37. Please do visit our stand for understanding the work in India. 

    This is also to share with you all that we have planned a sharing event on 25th May between 14.00 to 15.00 IST (+/- 5.5 UTC). The topic of this sharing event is 'Environmentally sound and climate smart program interventions through BAIF Development Research Foundation', India. It will be based on BAIF, India's efforts on ground to build resilience of vulnerable farming communities against climate change effects by introducing on ground, the multisectorial program interventions for resilient farming system.

    So, please participate for enriching knowledge!  See you there!