|
Crop/Cultivar |
Potato cv. Chopin |
|
Country/Location |
UK/Lincolnshire |
|
Soil texture |
Silt |
|
Objective |
Test CRF (Agromaster and Agrocote) against standard farm practice at reduced and comparable nitrogen rates |
|
ICL product tested |
Agromaster start mini and Agrocote 44 |
|
Application method & dates |
TBC |
|
Treatments |
•Standard practice (total 220kg N/ ha, P xx, K xx) •Agromaster start mini (total 168 N kg /ha, P xx, K xx) •Agrocote (total 220kg N/ha, P xx, K xx) •Agrocote & Agromaster start mini (total 228 kg N/ha, P xx, K xx) |
|
Assessments |
•Yield •Marketable yield •Tuber numbers |
|
Standard practice |
CRF 1 |
CRF 2 |
CRF 3 |
|
|
Base fertiliser |
1000kg of 16 15 15 (160kg N/ ha) |
800kg of Agromaster start mini (168 kg N/ ha) |
1000kg of 16 15 15 and 138kg Agrocote 44 220 kg N/ha) |
138 kg of Agrocote 44 and 800kg of Agromaster start mini |
|
Additional applications |
60 kg of N |
N/A |
N/A |
N/A |
|
Total N (kg/ ha) |
220 |
168 |
220 |
228 |
|
% CR nitrogen |
0 |
41 |
27 |
57 |
|
Estimated cost |
£530 |
£880 |
£702 |
£988 |
|
Yield difference |
+7t/ha |
+7.5t/ha |
+2.5t/ha |
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|
Output change |
+£700/ha |
+£750/ha |
+£250/ha |
||||||||||||
|
GM change |
+£350/ha |
+£578/ha |
-£208/ha
|
