In-season assessment of agronomic nitrogen use efficiency and its components in winter wheat using critical nitrogen dilution curve.

ABSTRACT: Accurate and timely nitrogen (N) scheduling requires knowledge of in-season crop N deficit. Therefore, understanding the association between crop growth and crop N demand during its growth period is imperative for fine-tuning N scheduling decisions to actual crop N demand and to enhance N use efficiency. The concept of the critical N dilution curve has been employed to assess and quantify the intensity and time of crop N deficit. However, research regarding the association between crop N deficit and N use efficiency in wheat is limited. The present study was carried out to determine whether there are relationships between the accumulated nitrogen deficit (N_and) and agronomic N use efficiency (AE_N) as well as with its components (N fertilizer recovery efficiency (RE

SUBMITTER: Li B 

PROVIDER: S-EPMC10050426 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature