About EM

EM is a sustainable microbial inoculant that achieves synergistic effects by combining beneficial microorganisms which exist in nature. EM activates local and native microorganisms that live in soil and water to boost performance. One of the strengths of EM is that it is a diverse combination of microbes, and this gives it versatility in terms of a wide scope of applications that it can be used on. EM was initially developed to improve soils and enhance crops but has evolved to benefit a wide range of areas and is used in numerous fields including agriculture, animal husbandry and environmental purification in more than 100 countries around the world. Learn about EM, EMNZ or Buy EM today

Our Products

Agricultural, horticulture, and waste:

Home gardeners and household:

Product Uses


How Soil Biology Impacts N on the Farm

The importance of our soil biology and its activity is not often spoken about when farmers are considering their N inputs for the season. Instead rates and expected dry matter tend to be the main talking points. Overlooking the biological processes is what limits farmers from getting the most out of their N inputs. It also illustrates why we often see farmers having to put more and more N on.

Transition Your Garden into Autumn

Autumn is upon us and it's time to start conditioning your garden for a new season. While summer is certainly a high season for gardening a variety of crops, the mild temperatures of Autumn can be great environments for some vegetables to absolutely thrive. Here are some things to do (and not do) to be successful during this season.

Regenerative Pastures with EM – Case Study

This Case Study looks at Inverness, a sheep and beef farm, straddling State Highway 1 just north of the Parnassus township in Canterbury. The property contains two blocks the first is a stunning block of land rising from sea level at the coastal boundary to 1800 feet (550m), and at a smaller property south of Parnassus. The size of the farm is 1200 effective hectares including the 60ha irrigated.

Crop Remediation and Improvement

This photo comparison shows the impact of EM on a mixed pasture including clover and pasja. The initial photo was taken a year earlier and shows poor uneven growth with discoloured and even dead patches throughout the paddock. The whole crop had poor colour and the clover was non-existent. An application EM had a dramatic impact on remediation of the soil and improving the crop.

Featured Products

EM1 Concentrate Label

EM1 Concentrate 20L

EM1 Concentrate is a natural, safe technology with many applications around the Garden, Farm, Vineyard and Environment. A certified organic input, EM1 Concentrate can be expanded by the user to increase the product volume 20 fold, making it a low cost microbial input.


EM1 Garden 1 Litre

EM1 Garden 1 Litre

EM1 Garden is the perfect product to create a vibrant and diverse garden environment. With a huge array of applications EM1 Garden can help solve many problems in the garden, including pest and disease control and also improve soil fertility and plant health.


Soil and Crop Label

EM Soil & Crop 20L

EM® Soil and Crop is a certified organic technology with many applications around farm, orchard, and vineyard environments. This ready to use product works by stimulating soil biology to enhance soil performance and plant production.


EM Environment

EM Environment 20L

EM Environment is a Ready to Use product which is a natural, safe technology with many applications around waste processing, odour, septic systems, compost and water quality. A certified organic product, EM Environment, works by getting the natural processes to function, the way nature intended. This includes breaking down odour, orgaic matter and sludge, balancing the microbial environment and improving composting activity


Learn more about Using EM

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