Intercropping Is the Key to a Food-Laden Garden

(Amy Allen) It’s getting to be that time of year, at least in the Northern Hemisphere: garden planning! Drawings are made, seeds are being started, in warmer areas plants are either in the ground or soon will be. And intercropping can help you to be as efficient with your garden space as possible.

Related What Are GMOs or Bioengineered Foods? And Are They Safe?

Source – The Organic Prepper

by Amy Allen, March 26th, 2022

Not only does this ultimately boost your food production, but it keeps your plants healthier as well. So, just what does intercropping entail? Let’s take a look.

What is intercropping?

Intercropping is the practice of planting two crops in proximity to one another, thereby producing more food on the same piece of land. Common examples include planting a short crop with quick maturity, such as radish, along with a tall crop with longer time to mature, such as tomato or corn. The radish matures and is harvested before the tomato grows tall enough to shade it out. This is different from succession planting, where we harvest one crop, then plant another.

What are the types of intercropping?

There are actually a couple of different types of intercropping. They are:

• Mixed intercropping: exactly what it sounds like. Crops are totally mixed within the grow space.
• Row cropping: Component crops are arranged in alternate rows. Variations on this theme include alley cropping, where crops are grown between rows of trees, and strip cropping, where several rows of one crop alternate with several rows of the other. Some even plant between rows of photovoltaic cells, a practice known as agrivoltaics.
• Temporal intercropping: growing a fast-maturing crop alongside a slow-maturing crop, as in the tomato/radish example above.
• Relay cropping: the second crop is planted when the first is nearing the fruiting stage. The first crop is harvested to make room for full development of the second. This is very similar to succession planting.

What are the benefits of intercropping?

Nobody engages in intercropping solely because it looks pretty (well, maybe some do). The reason that intercropping is used is because of its benefits. Here are the top three reasons you may want to consider intercropping in your summer garden this year.

Resource partitioning: This involves taking advantage of the differing needs of the crops. You don’t want crops competing with each other for space, nutrients, water, or light. Examples of this include planting a deep-rooted crop along with a shallow-rooted one, or planting a tall crop next to one that requires partial shade.

Mutualism: Three Sisters planting would be an example of this, as is companion planting. We plan our plantings for the mutual benefit of both, such as giving structural support to climbing plants and adding nitrogen fixers to the mix, both of which are done in Three Sisters planting. Marigolds and nasturtiums keep pests away from a number of crops, including broccoli, cauliflower, tomatoes, and cucumbers.

You can download a free Companion Planting Matrix from our friends at Seeds for Generations that will give you a helpful reference to know what crops to plant next to each other, and which ones to keep apart.

Pest management: Certain companion plantings, such as marigolds and nasturtiums noted above, help repel pests from cucurbits and brassicas. Trap cropping is another method: planting a sacrificial plant to keep predators away from the plants you want. One example is planting a deer salad well away from the greens you want for your own table. Cherry tomatoes, for example, are very attractive to both stink bugs and leaf-footed bugs.

(With increased harvest with intercropping, you’re going to want a way to preserve everything. Check out our free QUICKSTART Guide to home canning to help.

Of course, nothing in Nature is free.

Intercropping tends to require more management and poses special problems in crop rotation, most notably in the area of timing. Weather will complicate matters, and both mulching & cover crops may be a bit less effective.

One thing to consider when planning our intercropping is taxonomic family. We don’t want to plant things together that come from the same family, for example tomatoes and potatoes, because they have similar nutrient needs and attract similar pests.

Also in this example, both are fairly tall and take the entire season to mature. Both prefer bright light, so tomatoes can easily shade out your potatoes, and that’s not what we had in mind! Tomatoes have a deep root structure while potatoes produce their tubers underground in a spreading fashion. For that reason, there will be competition for the soil space that can result in lower yields for both crops. Again, not what we had in mind!

Planting radishes or another short-time-to-maturity root crop would work, since you’ll harvest that crop well before the tomato root system is fully developed. Short-time-to-maturity (TTM) spinach and other greens would also be excellent choices in this instance.

A side benefit here would be weed suppression. There’s no room for weeds to grow while the short TTM crops are developing, and by the time you harvest those, the tomatoes are well enough developed to shade out the weeds.

Another great example is planting between your cabbage & cauliflower, since these take a long time to develop, allowing time to grow short-maturity items such as greens and herbs between them. The examples are endless, but I think I’ve made my point here.

As discussed above, avoid using plants from the same taxonomic family.

• Group plants with similar watering needs
• Choose plants with compatible root systems and light/water needs
• Time-sequence so your plantings aren’t competing at the worst possible moments in their development
• Include plants such as legumes, accumulators, and green manures that will help revitalize your soil
• Include species, such as flowers and culinary herbs, that will help repel insects and aid in plant growth. Companion planting guides will be a very useful reference here.

Want some tips on intercropping?

This should give you a good baseline for getting started in intercropping this summer.

Fast growers

• Arugula, bush beans, beets, broccoli raab, carrots, green onions, lettuce, mizuna, radish, spinach, and tatsoi

Slow developers

• Broccoli, Brussels sprouts, cauliflower, corn, kale, tomatoes, collards.

Shade utilization

As discussed above, tall crops such as tomato and corn can be used to provide the partial shade that other plants prefer. Trellised squashes, cucumbers, and melons can also be used in this way.

Shade lovers that might do well include: arugula, beets, endive, lettuce, mizuna, mustard, pak choi, radishes, spinach, Swiss chard, and tatsoi.

Height differences

Three Sisters utilizes this strategy. The corn grows tall and provides structural support for the pole beans, while the beans enrich the soil for corn, a heavy feeder. Squash grows along the ground acting as a mulch and helping deter marauding animals interested in the corn and beans. As discussed above, root crops work really well here.

In addition to radishes, consider carrots and green onions. Those don’t require much space above or below ground. They can be seeded in among the broccoli, cabbages, peppers, and kale as well, or planted along bed borders. If you go for the mixed intercropping rather than sticking to rows, it’s possible to cram quite a bit into a very small space!

Intercropping, and its cousin succession planting, can be used to boost food production in many spaces big and small.

It does take some planning to find plants with similar but not too similar preferences, avoid taxonomic families, and keep garden maintenance manageable. Companion planting charts are also helpful here, since we don’t want to plant things together such as tomatoes and kohlrabi!

You can download a free Companion Planting Matrix from our friends at Seeds for Generations that will give you a helpful reference to know what crops to plant next to each other, and which ones to keep apart.

I found out the hard way that these two don’t get along well. My kohlrabi was growing well in the lower story, while my tomatoes were barely flowering, let alone setting fruit! By the time I pulled the kohlrabi it was too late in my growing season to undo the damage, and I ended up buying canning tomatoes that year.

Oh well! Garden and learn, right? Speaking of learning, this book can teach you how to use or preserve your homegrown produce. Combine your veggies with the shopping tips in The Flat Broke Cookbook for extra budget-stretching ideas and see how well you can eat on a very tight budget!

What are your thoughts on intercropping? Have you ever utilized this method before? Let us know in the comments below.

About The Author

Amy Allen

Amy Allen is a professional bookworm and student of Life, the Universe, and Everything. She’s also a Master Gardener with a BS in biology, and has been growing food on her small urban lot since 2010.

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Source:

https://www.theorganicprepper.com/intercropping/