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Potash News

The Potash Development Association publishes both technical Potash News items and shorter Blog items. Potash News provides the latest up to date information on Potash and its use, while blog items are shorter and more timely.

If you are in the UK or Ireland and are interested in receiving Potash News items through the post free of charge, then sign up on the contact page. Recipients of the Potash News can receive CPD points for BASIS, NRoSO, and Dairy Pro.

Crop establishment

Establishment is the most critical period in any annual crops life-cycle, as it is the time when the yield potential is set. All challenges the crop faces during the season serves to reduce the final yield from this potential. Therefore, conversely, any management decisions taken from this point onwards only helps limit the reduction in this yield potential.

September 2021

Farming Rules for Water

Introduction More than three years after their introduction, the Farming Rules for Water hit the spotlight last month due to increasing concerns surrounding the interpretation of the rules by the Environment Agency. Although manures are a good source of nutrients for crops, there is increasing scrutiny on their usage as farmers are encouraged to fully […]

September 2021

Potash for Oilseed Rape

With oilseed rape prices reaching well over £500/t before bonuses, the market appears to be telling growers to plant more of the crop. But with OSR’s very high demand for potash, especially in the spring, serious consideration should be given to the major inputs for this crop.

August 2021

The situation regarding P&K balances

When looking at P&K balances in detail over the last five years, including fields where no applications were made, the overall balances are dramatically negative. Maintaining soils at the target index is the safest way to ensure these crops are able to access the required quantities at the appropriate times to optimise growth, yield and therefore financial returns.

June 2021

Maize nutrition

To produce a good crop, maize plants need to grow very rapidly once they have germinated. To achieve this, a good soil structure, adequate soil moisture and warm soil temperatures (8-12°C) are essential. Maize can easily produce 50 t/ha in a period of four months and therefore has a large demand for nutrients. Any shortage […]

April 2021

Sugar beet nutrition

Sugar beet has a large requirement for potassium, with the majority taken up during the early months of growth. For maximum sugar yield it is essential to optimise the interception of solar radiation (sunlight) to provide the energy for the conversion of carbon dioxide to sugars. This requires a rapidly expanding leaf canopy. Nitrogen drives the rapid […]

April 2021

Nutrient Use Efficiency

Nutrient, particularly nitrogen, use efficiency (NUE), is a particular talking-point currently within the industry as government considers ways to help reduce the impact of agriculture on greenhouse gas emissions. The Campaign for the Farmed Environment states the aim as more efficient nutrient management to reduce greenhouse gas emissions, through better fertiliser application and management of […]

March 2021

Role of potassium in frost resistance

With the recent cold conditions experienced throughout the UK it is worth considering the impact of nutrition on plant tolerance to cold. The role of K in protecting crops against frost damage is widely recognised, however the detail behind the mechanisms may not be so clearly understood. When potash is deficient in plants, the stomatal […]

February 2021

Soil sampling under different cultivation practices

The premise for ensuring crops and grass have access to sufficient quantities of phosphorus and potassium to meet their uptake requirements over the course of a season is to assess the soil reserves. This is carried out in practice by taking a soil sample, either to 15cm depth in arable soils, or 7.5cm depth in […]

December 2020

Nutrient removal from stewardship options

Stewardship schemes can form a vital part of a farming business, for both social and financial reasons. That can be the case whether it’s the existing schemes, or future ones yet to be finalised. Many of the highest paid options for arable land are the part or whole field parcel, rotational options, such as AB1 […]

November 2020

Potassium and pest pressure

Barley yellow dwarf virus is the most economically important virus in UK cereals, with severe infections causing losses of up to 60% in winter wheat and 50% in winter barley. Although this is rare, significant economic damage can occur from small populations of aphids carrying the virus. The effects of BYDV can also be exacerbated […]

October 2020

Potash for OSR

Oilseed rape is going through a tough period at the moment, rapidly falling out of favour on-farm due to difficulties with establishment following the loss of neonicotinoid seed treatments in 2014. On top of this it has also faced increasing challenges with Clubroot, Turnip Yellows Virus, erucic acid levels and weed control. However, despite these […]

August 2020