We work with our partners OMEX and Nitrasol to create efficient fertiliser systems that meet the needs of individual farms. Our FACTS qualified team can provide nutritional advice, tailored plans and support through the solid to liquid conversion process.

There are many benefits of using liquid fertiliser:

• Accurate application right up to the field margin. Every plant receives full nutrition without spreading fertiliser beyond the sprayer boom into hedges, ditches, and wild areas. This reduces the risk of nutrient loss to our natural environment and the pollutant damage this can cause.
• Reduced product waste is achieved through the application accuracy, and the ability to put excess product back in the tank.
• No bags to unload, handle, or dispose of. This eliminates fertiliser packaging waste on farm, and helps reduce carbon emissions from the manufacturing of plastic fertiliser bags.
• Secure tank storage frees up valuable undercover areas and sheds for grain and machinery storage.
• Nitrogen and Nitrogen Sulphur grades, NPKS, micronutrients, speciality, and inhibitors available.

Our range includes straight Nitrogen, Nitrogen Sulphur, NPK’s and inhibiters.

Microgranular starter fertilisers provide readily available nutrients close to the seed to optimise establishment and root development.

• Simultaneous drilling and fertiliser placement, achieved by mixing granules with the seed, or using a separate hopper.
• Increased nutrient availability close to the seed boosts establishment. Young plants need phosphate to establish a strong root system, so they are able to uptake nutrients throughout the growing season.
• Inclusion of biostimulants promotes germination and plant metabolism, boosting crop establishment to start the growing season.

Starter fertilisers applied to oilseed rape at drilling have been proven to enhance establishment to help conquer flea beetle threats and produce yield improvements.

We offer a range of starter Fertilisers to suit your growing situation.

We offer a valuable grain nutrient analysis service through our partners NRM and Yara Lancrop laboratories. Suitable for cereals, oilseeds, and pulses, this analysis identifies the nutrient content of your crop, testing for essential macronutrients and micronutrients.

Benefits of Grain nutrient analysis:

• Crop nutrient uptake and utilisation: Understand how well crops are using available nutrients.
• Nutrient deficiency diagnosis: Identify and address nutrient deficiencies in crops.
• Accurate P and K offtake calculation: Obtain precise data for nutrient management.
• Optimised nutrient management plans: Enhance nutrient use efficiency, profit margins, crop growth, and yield.
• Comprehensive crop analysis data: Use results alongside other tools like soil sampling to build a thorough picture of your crop’s health and performance.
• Improve environmental practices: Support sustainable farming by optimising nutrient applications.

Contact your Openfield representative or the Fertiliser team to request a sample kit.

We partner with Yara Lancrop and NRM laboratories to supply user-friendly soil sampling kits, complete with a freepost return label for direct submission to the laboratory.

Benefits of Soil Sampling:

• Nutrient identification: Detect nutrient deficiencies or surpluses in your soil.
• Optimised nutrient management: Improve nutrient use efficiency, profit margins, crop growth, and yield.
• Valuable insights: Use the results alongside other crop analysis tools like grain nutrient analysis.
• pH optimisation: Determine if soil pH is optimal or if liming is necessary.

Example Tests:

1. Standard Soil Sample Test: Measures P, K, Mg, and pH.
2. Standard Soil Sample + Organic Matter: Measures P, K, Mg, and pH with OM.
3. Broad Spectrum Test: Measures: P, K, Ca, Mg, S, B, Cu, Fe, Mn, Mo, Zn, Na, CEC, and pH (including lime requirement). Includes: Soil Texture Classification (Sand %, Silt %, Clay %) and Organic Matter.

For more complex tests, we offer a variety of additional options upon request.

Contact your Openfield representative or the Fertiliser team to request a sample kit.

Nitrogen is an essential nutrient required for growth through protein synthesis and chlorophyll function. Protein forms enzymes which are needed for metabolic processes within the plant and enzymes act as a catalyst to speed up these natural reactions. Protein levels are also a quality requirement for milling wheat to gain premiums. Nitrogen is a key component of chlorophyl, the green pigment in leaves that traps sunlight for photosynthesis. This process produces glucose which is needed for respiration, the generation of energy needed for growth and survival.

Openfield offers a range of Nitrogen grades in prilled and granular forms to suit individual needs, including Nitram 34.5%, Prilled 34.5%, Yara Extran 33.5%, Granular 33.5%, Urea and CAN. We also have the option of protected nitrogen to prolong nutrient release and minimise loss to the environment. Legislation now requires any urea products spread after 31 March to contain an inhibitor to reduce losses through volatilisation.

All fertilisers that have an Ammonium Nitrate content of 16% or above now require a valid photo ID before purchasing to be held on record for 18 months.

Sulphur is an essential nutrient and plays an important role in plant metabolism, it is essential for the formation of plant proteins. Together with nitrogen, sulphur enables the formations of amino acids needed for protein synthesis and is part of an enzyme required for nitrogen uptake and can therefore significantly improve nitrogen use efficiency.

We have a range of sulphur products including NS compounds, such as 27N 12S03, 27N 9S03, 26N 37S03 and 26N 35S03 and the option of a slower release sulphur source such as Polysulphate. In addition to this, we have urea sulphur grades available with and without inhibitors.

Working with our suppliers nationally, we are able to offer a wide range of high-quality blends to suit all growing situations.

In addition to standard Fertiliser grades we supply prescription grades, combinations of major, secondary, and micro-nutrients to meet specific soil and crop requirements at individual field level.

Some of the benefits of using prescription blends include :

• No over or under supply of nutrient: Ensures crop yield is not limited by the under-supply of macro or micro-nutrients whilst ensuring there is no financial waste by over applying nutrients also resulting in protecting the environment.
• Exact match to crop requirement: Based on results from a soil analysis test ,a prescription fertiliser can be formulated for a crop in order to optimise its potential yield. By matching nutrient supply with crop demand, the appropriate level of nutrients are available to maximise profitability.
• Option of protected phosphate: Phosphorus is often described as the ‘lazy nutrient’ due to its severe lack of mobility in the soil, we have the option of adding protected phosphate to blends which is designed to prevent phosphorus from being fixed into forms which are unavailable for plant uptake.
• Addition of Micronutrients: Option to add Zinc, boron, copper, iron, manganese and molybdenum to prescription grades ensuring a uniform distribution of the nutrient across a field and maximum interception points with roots for early plant uptake, bridging the hunger gap between soil and foliar applied nutrients.

Our portfolio also includes compound NPK’s containing combinations of nitrogen, phosphorus, potassium and in most cases sulphur, designed to meet specific crop requirements to maximise crop yield and quality.  In a compound fertiliser every particle contains all the nutrients to give even distribution and allowing for wider spread widths.

For more specific nutrient requirements, we offer a range of high-quality straight products to meet the crops needs. Working with our trusted suppliers we are able to supply grades such as:

• TSP – Triple Sulphur Phosphate 0-46-0 Vital for plant establishment and rooting.
• MOP – Muriate of Potash 0-0-60 Potassium is an essential nutrient important for stress resistance and water regulation.
• DAP – Diammonium Phosphate 18-46-0 Provides both Nitrogen and Phosphate and is often used as a starter fertiliser for maize and OSR. DAP can also be used as the phosphate source in blends.
• Kieserite – 25Mg0+ 50S03  for targeted supply of magnesium and sulphur, 100% soluble and approved for organic use.
• Polysulphate – 14K20 + 6MgO+48S03+17CaO prolonged release sulphur reduces the chance of nutrient losses while also matching the uptake requirements of crops. Approved for organic use with a low carbon footprint.
• Potashplus – 37K+2.8MgO+23S03+8CaOGranular fertiliser made with polysulphate and potassium chloride providing crops with potassium, sulphur, magnesium, and calcium in a single application, fully available for plant uptake.
• Phosphateplus – 0-29.5-5+2MgO+19S03+24caO Granular fertiliser combining the benefits of TSP and Polysulphate supplying five essential nutrients in every granule. Highly effective starter fertiliser that is suitable for direct drilling or spread up to 36 metres.
• Ammonium Sulphate –  21N 60S03 a high sulphur spring fertiliser available in a range of sizes depending on required spread widths.
• Korn kali – 40K20 + 6Mg0+4Na20+12S03 is a complex fertiliser extracted from natural underground deposits containing potassium, magnesium, sulphur and sodium.
• Lime – Correct PH is key to improving crop performance. Granulated lime is not only effective at raising PH of the soil but will also provide nutritional benefits to the crop. This can be distributed with a standard fertiliser spreader.