The Effect of N Fertilizer Application Timing on Wheat Yield on Chernozem Soil
| Main Authors: | Marko M. Kostić, Aristotelis C. Tagarakis, Nataša Ljubičić, Dragana Blagojević, Mirjana Radulović, Bojana Ivošević, Dušan Rakić |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2021
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/6379481 |
Daftar Isi:
- The challenges of the global food supply and environment conservation require ongoing scientific observations of soil-to-plant and plant-to-environment interactions with the aim of improving agriculture resource management. This study included observations of winter wheat yield and biomass of four varieties over three consecutive growing seasons and four site-year cases to assess the effects of nitrogen (N) fertilization rate and time of application on grain yield and biomass. For different wheat varieties, the full factorial design was performed, where factorial combinations of year, location, fall and spring N applications were laid out in a randomized complete block design. The N rate significantly influenced grain yield and biomass production efficiency. The time of N application had a highly significant effect on grain yield, biomass and NUE traits. The N rate of 120 kg ha−1 was recognized as a breakpoint over which the grain yield and biomass showed a downtrend. N application in the fall had a significantly higher impact on grain yield and biomass compared to spring N application. The major contribution of wheat variability production belongs to seasonal climate circumstances (<85%) and consequential intrinsic soil properties. The average difference of grain yield between varieties was 15.75%, and 12% of biomass, respectively.
- This research has received funding from the European Union's Horizon 2020 research and innovation programmes under grant agreements No. 739570 (ANTARES) through which the general research topic was identified as part of the ANTARES Joint Strategic Research Agenda and No. 810775 (DRAGON) through which the specific theme was further conceptualized and investigated through the field work. The financial support of the Ministry of Education, Science and Technological Development of the Republic of Serbia is acknowledged: Grant No. 451-03-68/2020-14/ 200358 for authors N.L., D.B., M.R., B.I. and /200125 for authors M.M.K. and D.R.