A - Papers appearing in refereed journals
Xin, Y., Ping, Y., Jue, L., Yujie, Z., Shuifeng, Y., Xiaotao, M., Jianqiu, C. and Haefele, S. M. 2021. Grain yield, plant nitrogen content and nitrogen use efficiency as affected by controlled-release urea and straw biochar in a rice field. Journal of Plant Nutrition. 45 (9), pp. 1393-1402. https://doi.org/10.1080/01904167.2021.2014884
Authors | Xin, Y., Ping, Y., Jue, L., Yujie, Z., Shuifeng, Y., Xiaotao, M., Jianqiu, C. and Haefele, S. M. |
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Abstract | Resulting from the positive effect on rice productivity, the application of biochar and controlled-release urea in the form of polymer-coated urea (PCU) in crop production attracts more and more interest. However, field studies considering the combined effect of biochar and PCU are rare. This 2-year study examined the combined effects of biochar and PCU on yield, yield components, plant height, plant nitrogen concentration and nitrogen recovery efficiency in a waterlogged rice field. Experimental treatments combined two biochar rates (0 and 2800 kg ha−1) and three nitrogen rates (0, 120 and 180 kg N ha−1). The results showed a yield decrease under biochar application without nitrogen fertilizer. The application of 120 kg N ha−1 PCU and biochar had the highest yield in 2017. No significant differences of grain yields were indicated between 120 and 180 kg N ha−1. High grain yield and nitrogen use efficiency was obtained with 120 kg N ha−1 PCU. Therefore, 120 kg N ha−1 PCU can be recommended for rice production in this area. |
Keywords | Coated urea; Fertilizer; Nitrogen use efficiency; Super hybrids |
Year of Publication | 2021 |
Journal | Journal of Plant Nutrition |
Journal citation | 45 (9), pp. 1393-1402 |
Digital Object Identifier (DOI) | https://doi.org/10.1080/01904167.2021.2014884 |
Open access | Published as non-open access |
Funder | Biotechnology and Biological Sciences Research Council |
Funder project or code | S2N - Soil to Nutrition - Work package 1 (WP1) - Optimising nutrient flows and pools in the soil-plant-biota system |
Output status | Published |
Publication dates | |
Online | 15 Dec 2021 |
Publication process dates | |
Accepted | 01 Jun 2021 |
Publisher | Taylor & Francis Inc |
ISSN | 0190-4167 |
Permalink - https://repository.rothamsted.ac.uk/item/9877q/grain-yield-plant-nitrogen-content-and-nitrogen-use-efficiency-as-affected-by-controlled-release-urea-and-straw-biochar-in-a-rice-field