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Why Dirt Matters Part 2: Soil’s Impact on Vegetable Quality

May 8, 2019 by Tommy's Superfoods Leave a Comment

In our last post, we talked about how soil effects climate change. But soil also has an effect on the quality of the food that’s grown in it! And since we love all things to do with healthy dirt and good veggies, we wanted to share soil’s impact on vegetable quality with you.

What Does Soil Health Mean?

We’ve talked a lot about healthy dirt over the years, but what does that actually mean? Well, according to the United Nations Food and Agriculture Organization:

“Soil health is the capacity of soil to function as a living system, with ecosystem and land use boundaries, to sustain plant and animal productivity, maintain or enhance water and air quality, and promote plant and animal health.”

Ways Farming Can Negatively Effect Soil Health

There are actually several ways that farming can affect soil health in a negative way. Some of these include:

– Annual Cropping Systems

When farmers grow vegetables, they usually use an annual cropping system. This means that certain crops are planted and harvested, all within one year. This is an intensive process and can easily disturb the soil’s ecosystem.

– Breeding New Crops/GMOs

Farmers are attempting to breed new varieties of crops that will give them a greater result. This is another process that uses unnatural seeds and disrupts the soil.

– Crop First Practices

Many farming practices put crop yield first, rather than paying attention to soil health. Practices like tilling, using herbicides, and laying down plastic mulch decrease the organic matter of the soil, and have negative effects on its health.

How Does Unhealthy Soil Effect Vegetable Quality?

Just as much as growing vegetables can create unhealthy soil, unhealthy soil can create lower quality vegetables. Because of the intensity of our modern farming practices, nutrients are being taken out of the soil every year. So with fewer nutrients available in the soil, there are fewer nutrients being found in our vegetables too. In fact, a study from researchers at the University of Texas took a look at the nutritional data of 43 different vegetables from 1950 and 1999, and found a decrease in nutrients like protein and iron.

Positive Ways Farming Can Keep Soil Healthy

As we talked about in our last post, there are some farmers who are using a soil-first approach on their farms. Here are some ways that farmers can help to keep the soil healthy:

+ Use Crop Rotations

In a crop rotation system, a farmer will change the crop that’s planted in one field each year or season. Crop rotations can cut down on soil-borne diseases and help the soil maintain healthy characteristics.

+ Increase Organic Matter

Organic soil matter, also known as soil carbon, is highly recognized for its impact on soil health and quality. To increase the organic matter in your soil, you can use compost or manure. Compost or manure is added to crop fields to provide nutrients for plants and more organic material for the soil. Adding more organic matter also helps reduce the effects of heavy tillage.

+ Use Cover Crops

Cover crops can make a serious impact on soil health. These are crops that are planted in fields when the cash crops aren’t being grown. Like compost/manure, they add soil organic matter, enhance the soil’s fertility and structure, suppress weeds, and lessen soil erosion. Cover crops can also help cut down on soil-borne diseases and weeds.

+ Reduce Traffic In the Fields

When you make multiple trips across a field with heavy equipment and trucks, the soil can become compacted and unhealthy. If traffic is limited to certain areas, you can prevent soil compaction and conserve its health. It’s also important to avoid taking trips across wet fields as much as possible, because passing through wet soil with heavy equipment can decrease the productivity of the field.

Tommy’s and Healthy Soil

We’re big fans of responsible farmers, and that’s why we partner with them! We make sure that our products come from farms with healthy soil and high-quality veggies. If you want to learn more about soil’s impact on vegetable quality, take a look at some of the resources below.

  • Soil Health for Vegetable Crops
  • Focus on Soil Health: Soil Health and Vegetable Production
  • Dirt Poor: Have Fruits and Vegetables Become Less Nutritious?

You can also click here to read more on sustainability and responsible farming on the Tommy’s blog. 

What are your thoughts on healthy soil? Leave us a comment and let us know!

Filed Under: Sustainability

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