
Manganese products form the backbone of our independent business. Being the most common nutritional deficiency in the UK, we have a wide range of products designed for the agricultural and horticultural sectors, as well as the amenity market. We have both liquid and dry flowable powders available to suit your needs.
The Fielder Manganese range
Mn 350

Manganese is the most common deficiency in UK soils and our Mn 350 has been designed to cater perfectly to that need. This is a highly concentrated product and so requires lower application rates. It is also boosted with additional potassium, nitrogen and sulphur to aid crop development.
35% Mn, 10% N, 11% SO3, 6.5% K20
Mn 350 is sold as a liquid in 5L, 10L and 600L containers.
Manganese Sulphate WP
Fielder Manganese Sulphate WP is a free flowing powder which readily dissolves in water. It is used for foliar application to a wide range of arable and vegetable crops.
32% Mn, 47% SO3
Our Manganese Sulphate WP is sold in 25kg containers
Manganese 15

Manganese 15 (Mn 15%) is a liquid formulation of manganese. It has been purposely formulated to encourage speedy leaf uptake and maximum plant availability.
Manganese 15 is sold as a liquid in 10L, 15L and 1,000L containers.
Manganese + Humic Acids

Our Manganese + Humic Acids (15% Mn + Humics) is a manganese concentrate for foliar application. The humics help with enhanced uptake. This product can be used on nearly all agricultural and horticultural crops.
Manganese + Humic Acids is sold as a liquid in 10L containers.
Manganese DF
Manganese DF (31% Mn, 42% SO3) is our dry flowable Manganese product, designed using the highest quality ingredients. It can be used on nearly all horticultural and agricultural crops.
It is sold in either 10kg bags or 10kg buckets.
SuperMan 20
SuperMan 20 (20% Mn, 8% N) has been designed for speedy uptake by the leaf. It is miscible with nearly all other pesticides. We would recommend its use on most agricultural, as well as horticultural and fruit crops.
SuperMan 20 is sold as a liquid in 10L and 1,000L containers.
SuperMan 23
SuperMan is a 23% Mn, 8% N liquid solution.
SuperMan 23 is sold as a liquid in 10L and 1,000L containers.
Manganese + Copper
Manganese + Copper is our inorganic liquid formulation for when both the Mn + Cu nutrients are unavailable. Many light and peaty soils are deficient in both. Contains 12%Mn (w/v) and 2%Cu (w/v). Readily available as sulphate salts and in the correct ratio for plant utilisation.
Humic Acid

Our Humic Acid product is recommended for the prevention and correction of nutrient deficiencies in manganese and magnesium.
Fielder further adds Humic Acid to the formulation. And then an organic surfactant wetting system is included, which considerably enhances the uptake of the active ingredients.
15% Mn, 2.1% Mg
Mate – Manganese, Copper + Humics + Amino Acids

Manganese and Copper Humic is similar to our Humic product, with copper replacing the magnesium. In addition there are Humic and Amino Acids included in the formulation. The addition of these acids improves and optimizes the uptake of nutrients and water holding capacity.
12% Mn, 2% Cu
M ‘n M – Manganese + Magnesium

M ‘n M – Manganese + Magnesium is a liquid foliar mix, formulated using the highly available nitrate
forms.
We advice its application to arable, horticultural and vegetable crops. Consequently, its use will both prevent and correct nutrient deficiencies.
Full list of Manganese Products
Product | Content | Crop Use | Pack Sizes |
---|---|---|---|
Manganese Sulphate WP | 32% Mn, 47% SO3 | Arable & Horticultural | 25kgs |
Manganese 15 | 15% Mn | Arable & Horticultural | 10L, 15L, 1,000L |
Manganese + Humic Acids | 15% Mn + Humics | Arable & Horticultural | 10L |
Mn 350 | 35% Mn, 10% N, 11% SO3, 6.5% K20 | Arable & Horticultural | 5L, 10L, 600L |
Manganese DF | 31% Mn, 42% SO3 | Arable & Horticultural | 10kg bags or buckets |
SuperMan 20 | 20% Mn, 8% N | Arable & Horticultural | 10L, 210L, 1,000L |
SuperMan | 23% Mn, 8% N | Arable & Horticultural | 10L, 210L, 1,000L |
Manganese + Copper | 12% Mn, 2% Cu | Arable & Horticultural | 10L, 1,000L |
Mn + Humic Acid | 15% Mn, 2.1% Mg | Arable & Horticultural | 10L |
Mate | 12% Mn, 2% Cu + Humics | Arable & Horticultural | 10L |
M ‘n M | 6% Mn, 6% Mg | Arable & Horticultural | 10L, 1,000L |