The Master Leys range of grass mixtures offers full and comprehensive options for all types of farming systems and regions of the UK.
Working in close coordination with leading grass seed breeders throughout the UK and Europe, Agrii are able to access the best varieties to formulate the Master Leys portfolio.
In addition to this, Agrii grows and produces over 80% of the grass seed used to produce Master Leys .
This enables us to have a greater control over the quality of the seed we use and ensures that what goes into a Master Leys bag is of the highest possible standard.
At Agrii, we believe that giving specific advice on increasing quality home grown forage is the key to maximising an individual livestock farm’s productivity.
Technical Advice and Information for Growers
Our extensive knowledge of nutrient management, agrochemical inputs, grass seed mixture formulations and grassland management can all help build a resilient business and increase margins from forage in these uncertain times.
![](/media/ejyjwcrz/selecting-grass-seed-mixtures-to-suit-you.jpg?width=275&height=175&v=1da193f19b9ec20?quality=70)
Selecting Grass Seed Mixtures to Suit You
![](/media/yh2j42zf/grass-species-chariteristics.jpg?width=275&height=175&v=1da193f1a369630?quality=70)
Grass Species Characteristics
![](/media/wgtl3xg3/reducing-weed-grasses.jpg?rxy=0.4626726594156971,0.30266675377208146&width=275&height=175&v=1da194246f2bca0?quality=70)
Reducing Weed Grasses
![Reseeding grass the benefits](/media/4yjduamz/reseeding-realise-the-benifit.jpg?rxy=0.48589948016667645,0.415468117971731&width=275&height=175&v=1da194270f19f30?quality=70)
Reseeding: Realise the Benefits
![](/media/mn5lgwzg/reseeding-top-tips.jpg?rxy=0.4709477579878668,0.4468425626708397&width=275&height=175&v=1da194280d99510?quality=70)
Reseeding: Top Tips
![](/media/5e2ffljk/overseeding-top-tips.jpg?width=275&height=175&v=1da193f1b7c83b0?quality=70)
Overseeding: Top Tips
Mixtures For Growers in England, Wales & Northern Ireland
Explore Grassland Mixtures for the UK
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Bulk Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Silage Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Cut Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Protein Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Drought Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Forage Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Field Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Sward Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Sward Master Plus
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Stock Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Multi Master Plus
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Short Term Over Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Medium Term Over Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Long Term Over Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Maize Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Horse and Pony
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Lami-less Horse and Pony
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Hay
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Haylage
Mixtures For Growers in Scotland
Explore Grassland Mixtures for Scotland
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Bulk Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Cut Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Protein Master
Short to Medium Term
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Silage Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Turbo Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Field Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Sward Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Scot Master
Medium to long term
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Sward Master Plus
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Hill Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Short Term Over Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Medium Term Over Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Long Term Over Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Maize Master
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Horse and Pony
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Lami-less Horse and Pony
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Hay
![](/media/mvhfympi/grass-seed-bag.jpg?width=275&height=175&v=1da193fa879a770?quality=70)
Haylage
![](/media/5ybhn52l/agrii-grassland-nutrition.jpg?rxy=0.32530296265151,0.26997425278827286&width=573&height=350&v=1da119803318890?quality=40)
![](/media/3gqpackh/agrii-vacancies-web-tiles.png?width=275&height=175&v=1daa6c4eae30bc0?quality=70)
Grass and Roots
For England, Wales & NI
![](/media/cvdfvz4l/agrii-vacancies-web-tiles-1.png?width=275&height=175&v=1daa6c4eae1fa50?quality=70)
Grass and Roots Scotland
For Scotland
![Agrii Card Find expert](/media/i0enrtlw/agrii-card-findexpert.jpg?width=275&height=150&v=1da0b3e259b65f0quality=70)
Approach Us
We’re here to help your business ambitions. See how we could work together, we’d love to hear from you.
Let's Talk![Agrii Card Animal nutrition](/media/whqfqpsr/agrii-card-animalnutrition.jpg?width=275&height=150&v=1da0b3e5cb0f5f0quality=70)
Grassland Nutrition
Getting the basics right is fundamental to efficient production.
Grassland Nutrition![Agrii Livestock](/media/bhmj3wnt/agrii-header-livestock.jpg?width=275&height=150&v=1da0b3b8d1cc5a0quality=70)
Livestock Support
The nutritional work we are involved with has shown major advantages in health and temperament
Animal Nutrition![Agrii Card Seeds](/media/5defjz24/agrii-card-seeds.jpg?width=275&height=150&v=1da0b3e88e4e0f0quality=70)
Seeds
The highest quality seed offerings, formulated from a science based, sustainable production
Agrii Seeds![Agrii Advisor Ollie](/media/hg0pgkfp/talking.png?rxy=0.395458679646361,0.21168553345246435&width=275&height=150&v=1dab1de4d381cb0quality=70)
Agronomy
We are the UK’s leading agronomy company, with more than 300 BASIS-trained consultants offering independent advice
Learn MoreJoin Our Community
![Agrii Card X Twitter](/media/z24ir1us/agrii-card-x.png?width=275&height=175&v=1da0b3eb8a9e1f0?quality=70)
Agrii X
We love engaging with clients and partners. Give us a follow and let's share stories for the community.
![Agrii Card Community Instagram](/media/03jfpl0j/agrii-card-community-instagram.jpg?width=275&height=175&v=1da0b3e96458fb0?quality=70)
Agrii Instagram
A picture paints a thousand words. Follow us on Instagram to see what we are up to.
![Agrii Card Community Facebook](/media/25ghsigb/agrii-card-community-facebook.jpg?width=275&height=175&v=1da0b3e91fee550?quality=70)
Agrii Facebook
Follow us on the worlds biggest social media site for the latest news and events straight to your feed.
![Agrii Card Community Linkedin](/media/410hlhoa/agrii-card-community-linkedin.jpg?width=275&height=175&v=1da0b3e9e190a50?quality=70)
Agrii LinkedIn
If you are all about the business, connect with us on LinkedIn to build your network
Stay In Touch
![Agrii Card Touch Newsletter](/media/uxufpp40/agrii-card-touch-newsletter.jpg?width=275&height=175&v=1da0b3ea5aa4bd0?quality=70)
Newsletter Sign-Up
Receive email updates on topical news and information from around Agrii and UK Farming.
![Agrii Card Touch Podcast](/media/3eglmaen/agrii-card-touch-pocast.jpg?width=275&height=175&v=1da0b3eaf0a80f0?quality=70)
Listen To Our Podcasts
Listen to the Tramlines Podcast. Fortnightly chat about agriculture and trials with your host Tony Smith.
![Agrii Card Touch Journals](/media/mh5jxdvu/agrii-card-touch-journals.jpg?width=275&height=175&v=1da0b3ea1b20f90?quality=70)
Agrii Insights
Read essential agri intelligence for profitable farming.
![Agrii Card Touch Events](/media/vblbj4bb/agrii-card-touch-events.jpg?width=275&height=175&v=1da0b3eb2be1310?quality=70)
Find an Event
Join us for our upcoming events and tours.
Featured News
![](/assets/i/Agrii-News-Holder-newspage.jpg?quality=70)
News - 07/12/23
‘The field of the future’: The Digital Technology FarmsWe have launched an innovative new project involving the use of several connected technologies that can be used to make agronomic decisions at field scale throughout the growing season.
News - 02/07/24
Agrii strengthens fruit team with five new recruits
News - 24/05/24
Successful OSR Establishment: A Proven Six-Point Strategy
News - 09/05/24
Investment in Mobile Colour Sorting Technology
News - 06/05/24
How to kickstart slow growing crops this spring
News - 03/05/24
Agrii Vegetable Seed Enhancement Team Successfully Completes Second Season
From the fields
Get Growing
Find leading products for all your crop, livestock, and equipment needs
![](/media/qfpldk2c/pasco.png?width=210&height=226&v=1da7c4e7de6ec30?quality=70)
Your Maize options this Spring
Find the right maize variety for you this spring
![](/media/amnbsgen/agrii-crops-grass-3.jpg?width=210&height=226&v=1d9bee9cdb1a890?quality=70)
SFI SAM3 Herbal Leys
Find the right SFI legume and herbal ley for your farm system
![](/media/v1ekoknp/agrii-crops-cereals-springbarley-4.jpg?width=210&height=226&v=1d98fd17f1d3e20?quality=70)
Growing Spring cereals? Find out more here
See our range of researched spring cereals for your rotation
![](/media/rgfbwso5/reseed.png?width=210&height=226&v=1d9aa8f16246730?quality=70)
Grassland to repair? Discover your options
Discover our range of grass seeds
![Agrii General Wildflowers](/media/kxrlkwrp/agrii-general-wildflowers.jpg?rxy=0.4456912639186987,0.5590410058769677&width=210&height=226&v=1dab1e935f584b0?quality=70)
Find out more about Environmental Mixtures
Need ground cover, bird seed and wildflower mixtures? We've got you covered
![Agrii Header Potatoes](/media/hptb5lsz/agrii-header-potatoes.jpg?width=210&height=226&v=1da0b3c84eb3000?quality=70)
Find out more about Potato crops
We have deep expertise in potato crop management
![](/media/zk1jv0aa/wosr-flowers-at-coldstream-24415-12.jpg?width=210&height=226&v=1d9a9247d3ff2c0?quality=70)
Find out more about OSR
Robust varieties and crop management advice
![](/media/ioac33kt/360_f_298369147_uy4rh3m0gsemy4vlppko5zida8z1kez5.jpeg?width=210&height=226&v=1dab1e2dfefa240?quality=70)
Find out more about growing Vegetables
Specialist agronomy and solutions for high value crops
![Agrii Crops Apples](/media/cq5dzg0n/agrii-header-fruit.jpg?width=210&height=226&v=1da0b3b9831d6b0?quality=70)
Find out more about Fruit
Dedicated horticulture and viticulture teams to help you manage your crops
![](/media/am5ky3hr/rye.png?width=210&height=226&v=1d9a8ffdcaea460?quality=70)
Find out more about Hybrid Rye Crops
Growing wholecrop for AD or grain for livestock we have varieties and advice to help you grow
![](/media/d5spmehp/turnip-4.png?rxy=0.30014784645604803,0.47108397619254&width=210&height=226&v=1d9b57a8699bc40?quality=70)
Find out more about Root Crops
A broad range of Root Crops for home-grown forage
![Agrii pulses](/media/rzhg1gmv/agrii-header-pulses.jpg?width=210&height=226&v=1da0b3b6e539b80?quality=70)
Find out more about Innovation Crops
Options for profitable opportunities in your rotation