Field description: _____________________________________________________________
Previous crop: __________________________________
Yield: ________________________
Manure tested by: _____________________
Soil tested by: ___________________________
Water tested by: _______________________________________ |
| Crop season: _________________________
Crop and variety: ________________________ |
N Requirement
1. Expected yield: ________________________________________________________
bu/A
(Past 5-year average + 5 %)
2. Total N needed to achieve
expected yield: ____________________________________ lb/A
(expected yield x crop factor/efficiency factor)
N Credits
3. Residual soil NO3 credit:
________________________________________________ lb N/A
4. Irrigation water NO3 credit:
______________________________________________ lb N/A
(ppm
NO3 - N x 2.7 = lb/AF water)
5. Soil organic matter
credit: ______________________________________________ lb N/A
(credit
30 lb N per % OM)
6. Nitrogen available
from previous legume crop: _______________________________ lb N/A
7. N available to crops:
__________________________________________________ lb N/A
8. Plant available N/ton
manure: ____________________________________________ lb/ton
9. Maximum manure application
rate: ________________________________________ tons/A
|
Total manure applied: _______________
tons/A Actual yield: ____________________ bu/A
N fertilizer applied: _________________
lb/A Total irrigation water applied: _________
AF |
Notes:
|
