- Location
- Darlington
Do potatoes need a sulphur fertiliser?
Potato fert
- Thread starter colhonk
- Start date
Bogweevil
Member
Apparently unclear - AHDB Potatoes undertaking research to conclude this year:
Optimising sulphur recommendations for potatoes where deficient (and review on the effect on acrylamide forming potential)
Summary
Background
About one quarter of the GB potato crop receives an application of sulphur (British Survey of Fertiliser Practice 2016). However, the 2016 review during the revision of the potato section of RB209 (Allison & Sagoo 2016) highlighted the paucity of experimental data relating to the S nutrition of the UK potato crop, especially with decreasing atmospheric inputs of S. Reports published in Scotland in the mid-1980s were used to formulate the recommendation for 25 kg SO3/ha (10 kg S/ha) when sulphur deficiency was “expected” (TN633, October 2013). Other field studies in the UK (Muttucumaru et al. 2013) have investigated the effects of N and S applications on tuber sugar and amino acid concentrations and on acrylamide-forming potential. These trial data were inconclusive but suggested that S applications might help reduce acrylamide formation in crops given excess N. In 2016 CUPGRA funded three fully randomised and replicated experiments looking at the responses of pre-emergence applications of S fertiliser. Overall there were no effects of S applications on tuber yield or quality, however this was only for one season and more data is required.
Project code:
11140048
Date:
01 January 2018 - 31 March 2021
Project leader:
Marc Allison
Optimising sulphur recommendations for potatoes where deficient (and review on the effect on acrylamide forming potential)
Summary
Background
About one quarter of the GB potato crop receives an application of sulphur (British Survey of Fertiliser Practice 2016). However, the 2016 review during the revision of the potato section of RB209 (Allison & Sagoo 2016) highlighted the paucity of experimental data relating to the S nutrition of the UK potato crop, especially with decreasing atmospheric inputs of S. Reports published in Scotland in the mid-1980s were used to formulate the recommendation for 25 kg SO3/ha (10 kg S/ha) when sulphur deficiency was “expected” (TN633, October 2013). Other field studies in the UK (Muttucumaru et al. 2013) have investigated the effects of N and S applications on tuber sugar and amino acid concentrations and on acrylamide-forming potential. These trial data were inconclusive but suggested that S applications might help reduce acrylamide formation in crops given excess N. In 2016 CUPGRA funded three fully randomised and replicated experiments looking at the responses of pre-emergence applications of S fertiliser. Overall there were no effects of S applications on tuber yield or quality, however this was only for one season and more data is required.
Project code:
11140048
Date:
01 January 2018 - 31 March 2021
Project leader:
Marc Allison
woodylane
Member
- Location
- Lancashire
Helps with skin finish
- Location
- Darlington
So when / if I get my bags of Origin sulphur mix broken up, I will keep a bit and spread it on my tattie patch then. Thanks both 
Niteforce
Member
- Location
- East Yorks
Ive been using a 26n/35so3 as N balance after DAP at plantings previous years.This year switched to liquid 24/7.5 ,still DAP at planting but used Potashplus for K requirements so a chunk of S in that . Will see how it works this year .
Bogweevil
Member
So when / if I get my bags of Origin sulphur mix broken up, I will keep a bit and spread it on my tattie patch then. Thanks both
Dust the planting trench with sulphur - it might acidify the area where tubers form and suppress common scan. Ltd evidence but since you have the gubbins worth a go.