5 Farming Myths to Think About on Your Next Grocery Run

Most of us don't spend our days ploughing fields or wrangling cattle. We're part of the 99 percent of Americans who eat food, but don't produce it.

Because of our intimate relationship with food, and because it's so crucial to our health and the environment, people should be very concerned about how it's produced. But we don't always get it right.

Next time you're at the grocery store, consider these 10 modern myths about the most ancient occupation.

1. Most farms are corporate-owned

This myth is probably the most pervasive on the list. It is also the furthest off-base. Nearly 99 percent of US farms are family-owned. The vast majority of these are small family farms, but the bulk of our food comes from large family farms.

2. Food is expensive
Americans spend a considerably smaller percentage of their income on food than they did in the 1960s. Americans also spend among the least amount worldwide on food as a percent of income.

We spend less of our money on food than people in many other developed nations.

Between 10 and 20 percent of the cost of food actually reaches the farmer. That means when commodity prices rise or fall, food costs remain relatively constant, buffering consumers from spikes in their grocery bills.

That's not to say that food isn't difficult for some American households to afford, and nutrition and obesity experts worry about the relatively high cost of nutrient-rich versus calorie-dense foods.

3. Farming is traditional and low tech

Self-driving cars are still out of reach for consumers, but tractors have been driving themselves around farms for years. And driving tractors isn't the only role GPS plays on a farm.

Farmers collect geospatial data to monitor variations across a field in soil type, water and nutrient use, temperature, crop yield, and more.

The average farmer on Farmer's Business Network, a social media-like platform for farm analytics, collects about 4 million data points every year. Artificial intelligence helps sort through all this data and maximise performance within a field down to the square metre.

The seeds farmers plant are also carefully crafted by years of state-of-the-art research to maximise yield and efficiency. Gene sequencing and molecular markers help track the best traits when breeding new crops.

Chemical mutagens and radiation speed up evolution by introducing new mutations. And genetic engineering enables scientists to move genes between species or turn off genes for undesirable characteristics.

Organic farms are not necessarily any less high-tech. Except for genetic engineering, all the above technologies improve yields on many USDA-certified organic farms.

With all this technology going into modern farms, the demand for skilled workers in the agriculture sector is also rising. In 2015, the United States Department of Agriculture reported that jobs in food and agriculture outnumber degrees granted in those fields nearly two to one.

Of those job opportunities, 27 percent are in science, technology, engineering, or math.

That's why I switched from a largely pre-med major to plant biology for my PhD. I grew up in a farm and ranch community on the dry eastern plains of Colorado.

There, slim margins prevent many farmers from investing in the newest technologies, so I wanted to help make better seeds more affordable.

4. A pesticide is a pesticide is a pesticide

Pesticide is a generic term for a range of compounds. Different classes target certain types of pests: herbicides for weeds, fungicides for fungi, insecticides for insects, rodenticides for rodents.

Some kill very specifically. For example, certain herbicides target only broad-leafed plants, but not grasses. Others, like certain insecticides that can also harm larger animals at high doses, cross categories.

Pesticides fight bugs and weeds in organic and conventional fields. The difference is that organic pesticides cannot be synthesised artificially. This does not necessarily mean they are less toxic.

Toxicity depends on the specific compound and a person's exposure to that compound. Some pesticides, especially older ones, are toxic at relatively low levels. Others are safe even at very high doses.

Pesticides also differ in how quickly they break down in the environment.

Different regulations apply to different pesticides. Permits are required to purchase some agricultural chemicals, and many farmers call on crop consultants to diagnose problems in a field and prescribe the proper treatment.

5. Organic farmers and conventional farmers don't get along

Adjacent farms have to cooperate regardless of how they grow their crops. For example, potentially damaging herbicides applied to one field can drift onto a neighbour's crops. Poorly managed weeds or insects can also spread from one field to another.

But many farm families actually grow organic and conventional crops on different fields. Organic and conventional agriculture are different business models.

It typically costs more to grow crops organically, but farmers can sell these crops for a higher premium. Some crops are easier to grow organically than others depending on the type of pests they face.

Whether a given crop can be grown with more sustainability by conventional or organic methods also differs by crop and by region.
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