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Research reports on determinacy groups and nitrogen management in potatoes
Links to AHDB research reports on nitrogen (N) use and variety determinacy groups are provided below
Read more information on nitrogen (determinacy) groups of potatoes
Reports
1110044 Improving Nitrogen Recommendations for Potatoes Through Estimation of Determinacy of Varieties (2017-2020)
- protocol to determine nitrogen grouping of new varieties
- review of published data to inform RB209– the “Fertiliser Manual”
R405 Improved canopy and N management for the GB potato crop (2008-2011)
- testing the nitrogen management model (R273)
- total N uptake, canopy persistence and yield potential
- N falling into the wheeling is unlikely to be recovered efficiently
- effects of poor soil conditions (compaction, cloddiness) on the N uptake and yield
- irrigation and N use efficiency
R273 Improved nitrogen management for potato crops (2006-2008)
- nitrogen management model
- crop yield, N uptake and radiation absorption data from 211 experimental or commercial crops in the UK and in the US
- N requirements of varieties grown on differing soil types
- refers to an old version of RB209
Results from on-farm trials
Download presentations from the Strategic Potato (SPot) farms’ trials on crop nutrition