Nitrogen losses (N2O and NO3-) from mustard (Brassica juncea L.) cropping applied urea coated bio-charcoal

Elisabeth Srihayu Harsanti, Asep Nugraha Ardiwinata, Sukarjo, Hidayatuz Zu'amah, Asep Kurnia, Mas Teddy Sutriadi, Dedi Nursyamsi, Wahida Annisa Yusuf and Anicetus Wihardjaka
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Elisabeth Srihayu Harsanti: Indonesian Research Center for Horticultural and Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
Asep Nugraha Ardiwinata: Indonesian Research Center for Horticultural and Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
Sukarjo: Indonesian Research Center for Horticultural and Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
Hidayatuz Zu'amah: Indonesian Research Center for Horticultural and Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
Asep Kurnia: Indonesian Research Center for Horticultural and Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
Mas Teddy Sutriadi: Indonesian Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia
Dedi Nursyamsi: Indonesian Agency of Extension and Development for Agricultural Human Resource, Ministry of Agriculture, Indonesia
Wahida Annisa Yusuf: Standardization Agency Agricultural Instruments, Ministry of Agriculture, Jakarta, Indonesia
Anicetus Wihardjaka: Indonesian Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Bogor, West Java, Indonesia

Plant, Soil and Environment, 2024, vol. 70, issue 1, 1-10

Abstract: Most farmers use urea as a nitrogen fertiliser to raise mustard (Brassica juncea L.), although its nitrogen (N) content is quickly lost due to its hygroscopic nature. Nitrogen loss in the form of nitrous oxide (N2O) and nitrates (NO3-) has been causing low nitrogen fertiliser efficiency in vegetable cultivation. This investigation aims to assess the impact of urea fertiliser coated with biochar or activated charcoal on losses of N2O and NO3- concentration in the soil during mustard production. The experiment used a randomised block design with five treatments of urea fertiliser coated with biochar/activated charcoal. The observed data included N2O flux, nitrate, and ammonia content in soil and water. The results showed that urea fertiliser coated with activated charcoal from corn cobs tended to suppress N loss more effectively than urea coated with biochar or activated charcoal from coconut shells. Biochar and activated charcoal from coconut shells suppressed N-N2O loss as much as 3.1% and 52.5% (7 days after planting (DAP)), respectively, and 68.7% and 71.6% (21 DAP), respectively. Biochar and activated charcoal from corn cob reduce N-N2O loss by 46.5% and 66.5% (7 DAP), respectively, and by 70.7% and 77.8% (21 DAP). Urea-coated activated charcoal fertiliser increases mustard plant biomass and nitrogen uptake. Biochar and activated charcoal from coconut shells and corncobs increase nitrogen use efficiency by 5, 24, 6, and 17%, respectively. Biochar/activated charcoal coatings are a promising technology for boosting nitrogen use efficiency in vegetable crops, including mustard crops.

Keywords: nutrient; nitrification; greenhouse gas emission; natural charcoal; coating of urea fertiliser (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:70:y:2024:i:1:id:282-2023-pse

DOI: 10.17221/282/2023-PSE

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