Grain yield, plant nitrogen content and nitrogen use efficiency as affected by controlled-release urea and straw biochar in a rice field

Yang, Xin; Yang, Ping; Jue, Lou; Zhang, Yujie; Ye, Shuifeng; Mao, Xiaotao; Chen, Jianqiu; Haefele, Stephan M.

doi:10.1080/01904167.2021.2014884

Cited by 5 publications

(1 citation statement)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This yield gap varies in accordance with the crop and was found to be higher for cereals (Seufert et al, 2012). Plants can absorb nitrogen in the form of urea faster than organic manures (Bana et al, 2022;Xin et al, 2022), and the easily available nitrogen content in organic fertilizers was found to be lower than that in inorganic fertilizers (Ruan et al, 2023). This may be a reason for the higher yield in conventional management in comparison to organic nutrient management.…”

Section: Yield Attributesmentioning

confidence: 99%

Productivity and nitrogen use efficiency of rice under conventional and organic nutrition

Elizabeth Jose,

KB,

Alex

et al. 2023

ECJ

View full text Add to dashboard Cite

The current study demonstrates the influence of conventional and organic nutrient management practices on nitrogen use efficiency, growth, yield, and physiological and biochemical parameters in four rice varieties, namely, Jaiva, Ezhome 2, Jyothi and Uma. Growth parameters, grain yield per hill, and physiological and biochemical parameters were higher under conventional management for all rice varieties. Although the nitrogen use efficiency of each variety varied significantly with nutrient management practices, the variation was least in Jaiva (23.8%), which is the organic rice variety released by Kerala Agricultural University. The rice varieties Jaiva and Ezhome 2 showed consistency in the grain weight per panicle under both conventional (Jaiva- 4.57 g, Ezhome 2- 5.86 g) and organic (Jaiva, 4.24 g, Ezhome 2, 4.54 g) management. The soil nitrogen content at the tillering stage (0.66**) showed a significantly higher positive correlation with nitrogen use efficiency under organic management. The results of the study provide a better understanding of factors that can lead to a sustained yield in organic rice production in terms of nitrogen use efficiency.

show abstract