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Applying nitrogen and sulphur together just makes sense

Combining nitrogen and sulphur together increases nitrogen use efficiency so means more for your money with less wastage

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Tuber Initiation - Time to Increase Potato Yield by 6t/ha

Potato planting has gone well this year with some in earlier than normal due to conducive planting conditions early-on.

Once the potatoes have reached tuber initiation and require top dressing it is important to also think about their calcium requirements. Potatoes need calcium to strengthen the skins of the tubers via strengthened cell walls; providing better resistance to many diseases (black scurf, silver scurf and common and powdery scab) and also a better skin finish. Calcium deficiency also causes internal rust spot so it’s essential to apply calcium at the right time. It is also important to understand the source of calcium, as not all are soluble and therefore plant-available. Some sources of calcium require extreme amounts of water to dissolve, meaning the calcium isn’t available to the crop in time for improving tuber quality.

Calcium nitrate fertilisers, such as YaraLiva Tropicote, are very soluble (requiring much smaller amounts of water to dissolve) which means they supply plant-available calcium. Applying 375-500kg/ha at tuber initiation gives adequate amounts for creating improved quality tubers. Trial work carried out on YaraLiva Tropicote showed an increase in marketable yield by over 6t/ha when compared to top dressing with Ammonium Nitrate.

Tuber initiation is also an important time to increase tuber numbers with foliar nutrition – YaraVita Magphos K applied at 10L/ha will increase tuber numbers, quality and total yield. If you want to influence tuber size, apply 2 x 5l/ha 10-14 days apart at early tuber bulking.

More arable agronomy advice

Farmer on a potato field
Establishing potatoes successfully
As with any other crop, good nutrition is key to securing a healthy potato crop, one that will return good yield and high quality and ultimately achieve a better profit margin for you.
Farmer fields in Scotland
Micronutrients: Micro but Mighty
Don’t be fooled by the name - micronutrients are NOT unimportant, we just need less of them than the macronutrients to achieve the best results.
Spring Barley Fields
How to Maximise Spring Barley Productivity
With so many farmers struggling to get onto their fields to drill winter wheat due to the wet weather, many are turning to spring barley as an alternative crop.
Maize Field
Protecting Maize from Abiotic Stress
To achieve your maize crop’s full potential you should be focused on two strategies
Planning for Successful Oilseed Establishment
Planning for Successful Oilseed Establishment
Oilseed rape can be a tricky crop to establish, so attention to detail is critical to overcome various obstacles that can affect early growth and development.
Managing late drilled wheat crops
Managing late drilled wheat crops
Where drilling of winter wheat has been delayed, the crop nutrition strategy should be adapted to help recover the lost yield potential
Do you really need straight nitrogen
Do you really need straight nitrogen
Before ordering your straight nitrogen it is worth considering how much you actually need as it may be you actually need NS or NPKS grades instead.
Don't forget about sulphur
Don't forget about sulphur
Sulphur was often overlooked in the past but today it is recognised as an essential nutrient and considered just as important as nitrogen, so not to be forgotten.
Heavier fertiliser spreads further
Heavier fertiliser spreads further
Some fertilisers consistently spread further and more accurately than others. A heavier and larger fertiliser granule will spread further because the spreader can put more energy into it.
See all agronomy advice

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Recent arable agronomy webinars

Nitrogen price - How does it affect you?
In this webinar, Yara UK's Head of Agronomy, Mark Tucker is joined by Natalie Wood Yara's arable agronomist and Philip Cosgrave Yara's grassland agronomist to discuss how to maximize your return on investment and respond to the price of nitrogen for next years arable and grass crop.
How does crop nutrition influence oilseed establishment
In this webinar, Natalie Wood is joined by Sarah Kendall from ADAS to discuss how to achieve successful oilseed establishment from the basic principles through to autumn nutrition
New season nitrogen - What to grow and how to grow it?
In this webinar, Natalie Wood is joined by James Webster from AHDB and will be doing a full rundown of everything you need to know about nutrition planning for next season

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