Hartenberg's Sustainable Practices in Regenerative Agriculture

What does regenerative agriculture mean?

Regenerative agriculture involves restoring damaged soils through ecologically based practices. It focuses on efficiently managing a farm by acknowledging interactions of soil, water, plants, animals, and humans – each part of a cohesive system.

What distinguishes organic from regenerative agriculture?

Both organic and regenerative approaches aim to reduce synthetic chemical use. However, regenerative agriculture goes further by emphasizing methods that actively enhance soil health. In essence, it is not merely about avoiding harm, but proactively boosting the environment.

The advantages of regenerative agriculture include:

• Increased organic matter in soil and greater biodiversity.
• Healthier, more productive soil resistant to droughts and floods.
• Less chemical inputs and reduced pollution.
• Cleaner air and water.
• Enhanced habitat for wildlife.
• Carbon sequestration in soil to fight climate change.

Additional benefits elaborated upon:

Combating climate change: Regenerative agriculture helps mitigate climate change by reducing greenhouse gas emissions and sequestering carbon in the soil.

Global evidence of CO2 reductions through regenerative agriculture: There is increasing evidence highlighting the ability of regenerative practices to lower CO2 emissions globally.

Improving soil quality: It enhances soil health, increases fertility, and prevents degradation.

Promoting biodiversity: It encourages a breadth of life forms within agriculture by employing diverse crop rotations and limiting pesticide use.

Efficient resource use: It optimizes the use of resources like water and nutrients, resulting in better crop yields and less strain on freshwater reserves.

Environmental protection: It safeguards natural ecosystems from damage and erosion.

Hartenberg's journey toward regenerative agriculture

The winery has committed itself to the path of regenerative viticulture for many years, showcasing significant improvements in soil and vineyard conditions. Recently, they hosted visitors from the US-based platform "Land to Market," an organization (in collaboration with the Savory Institute) focused on regenerating farmland and restoring wilderness.

The winery is hopeful for certification/accreditation soon.

Grassland utilization

While grapevines are resilient, Hartenberg understands that sowing cover crops is vital to mitigate the impacts of monoculture. Each year, various cover crop species are planted to provide specific nutrients to the soil. These nutrients serve as a rich buffet for the microorganisms residing in the soil, enhancing its health and fertility. Hartenberg began planting cover crops like Medics and Mustard in 2010. Since 2019, the approach has evolved toward prioritizing ornithologically specialized intercropping that increases diversity and enhances soil.

Composting

A central question Hartenberg regularly considers is “What waste do we generate?” and they seek solutions. The winery produces waste in the restaurant and cellar. Visitors can rest assured that all food waste is composted using the Swedish Jora system, which transforms it into nutrient-rich compost. This compost is utilized in the estate's gardens. In summer, Hartenberg produces approximately 200 kg of compost per week and 50 to 100 kg in winter. This compost is used as mulch to promote soil health. Additionally, garden waste, along with skins and stems from the annual grape harvest, is mixed and composted. A year later, this compost finds its way back to the vineyards.

Controlled high-density grazing

In 2017, Hartenberg introduced cattle onto the farm, acting not only as lawnmowers but as integral components of an innovative vineyard management approach. The farm has discovered that well-managed livestock can significantly enhance plant and soil health in the vineyards. The benefits of cattle are diverse: their hooves delicately aerate the soil, while the grazing suction effect fosters plant growth, and saliva, dung, and urine rejuvenate the soil. Hartenberg is pioneering this technique by closely measuring soil microbiology and its impacts on the wines produced from these experimental vines, comparing them to traditional methods.

Back to nature

Wetland restoration

Nestled within a 170-hectare property is a 65-hectare wetland that was once overrun by invasive plants. Today, it symbolizes our dedication to land restoration and is a living ecosystem filled with native vegetation.

Since 1995, Hartenberg has embarked on the ambitious mission of reclaiming wetlands from the grip of invasive plants like Syringa, Black Wattle, Blue Gum, Pine, and others. These extensive measures have led to considerable results: elevated groundwater levels and extended runoff after rains foster ideal conditions.

The true magic of these wetlands lies in their role as havens for wildlife. More than 85 bird species have found refuge here, along with various animals like bucks and wildcats.

Biological pest control

At Hartenberg, we adopt a holistic approach to pest control, fostering healthy relationships between vines and native insects that protect them.

Since the early 2000s, Hartenberg has been pesticide-free, focusing on introducing native insects to mitigate pest populations. The outcome is that all vineyards younger than twenty years have remained virus-free.

Integrated Production of Wine (IPW)

Hartenberg farms organically and follows IPW standards focused on sustainable wine production. The Integrity & Sustainability seal on all wines signifies a commitment to environmentally conscious and sustainable practices.

Water management

Water recycling

Hartenberg enjoys access to water from five springs spreading across the Bottelary Hills. Strategic management of these resources means that they have not been connected to the municipal water supply for over 300 years.

Nearly two decades ago, Dr. Eric Smollgruber, a water engineer, advised on improving wastewater management to maximize reuse. They have since converted to a closed system, successfully recycling all wastewater on the estate.

Irrigation

Another step towards conserving water is the implementation of subsurface irrigation, wherein pipes are embedded in the ground to direct water straight to the roots.

Here is the link to all Hartenberg wines