EVALUATION OF THE NITROGEN USE IN WHEAT CROP IN RELATION TO AMMONIUM NITRATE FERTILIZER
This study evaluated the use of nitrogen in wheat crop, in terms of Agronomic Efficiency (AE) and Partial Factor Productivity (PFP). The experiment was conducted in the specific conditions of the Banat University of Agricultural Science and Veterinary Medicine of Timisoara (BUASVM), Timis County, Ro...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Agricultural Sciences and Veterinary Medicine, Bucharest
2022-01-01
|
| Series: | Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| Online Access: | https://managementjournal.usamv.ro/pdf/vol.22_3/Art64.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This study evaluated the use of nitrogen in wheat crop, in terms of Agronomic Efficiency (AE) and Partial Factor Productivity (PFP). The experiment was conducted in the specific conditions of the Banat University of Agricultural Science and Veterinary Medicine of Timisoara (BUASVM), Timis County, Romania. Nitrogen (N) was provided on the basis of ammonium nitrate, in the range 0 - 250 kg a.s. ha-1, in 11 experimental variants (T1 to T11). The AE index varied between 14.631 (T2) and 9.138 (T11), with a maximum (27.211) corresponding to the N75 dose (T4). The PFP index recorded decreasing values from 90.497 (T2) to 16.725 (T11). The AE index variation in relation to N was described by the polynomial equation of degree 4 (R2 = 0.975, p <0.01), and the AE index variation according to Y was described by a polynomial equation of degree 3 (R2 = 0.722, p = 0.0233). In relation to the calculated progressive increase yield (PY) the AE variation was described by a linear equation (R2 = 0.780, p <0.001). The PFP index variation in relation to N was described by a polynomial equation of degree 3 (R2 = 0.994, p <0.001), and in relation to N and Y, as simultaneous influence, was described in statistical safety conditions (R2 = 0.885, p = 0.0144). |
|---|---|
| ISSN: | 2284-7995 2285-3952 |