Choosing Orchard Grass

When it comes to considering orchard ground covering, the experts have a few suggestions.
By John Quinney
May/June 1983
Add to My MSN

Domesticated geese do a fine job of controlling the growth of orchard grass.
Photo by MOTHER EARTH NEWS Staff


Content Tools

Related Content

Innovative Use For A Utility Trailer

How our friend John Dougherty took a normal covered utility trailer and converted it into a camping ...

Turn the Table on Grasshoppers Eating the Garden

Are the grasshoppers devouring the garden that you are working so hard to keep alive? I say fight f...

Winter Cover Crops for Better Soil

Nitrogen-fixing winter cover crops can save you money on fertilizer next year.

Choose a Dandelion Weeder: Pulling Weeds, Not Your Back

Pick the right dandelion weeder, and ridding your lawn and garden of dandelions becomes more game th...

Q: We have a 4-year-old orchard on our farm in Tennessee, and we've been considering sowing the grassy areas between the trees with crown vetch, which we hope would conserve moisture, ease mowing chores, add nitrogen to the soil, and act as living mulch to aid in weed control. Will the lush growth harm the young fruit trees? And, if so, what other low-maintenance orchard grass or ground covers would you suggest? (We're also concerned about the new growth encroaching on adjacent gardening areas.) Finally, will our eight Chinese weeder geese that feed in the one-fourth acre orchard stay fit on a diet of crown vetch? 

A: In your situation, crown vetch (Coronilla varia) probably is not the best choice for an orchard ground cover. Potential problems include its competition with the fruit trees for water and nutrients, its possible invasion of your garden space and the unpalatability of the legume to your geese.

When choosing a suitable cover crop, you should first look to species that would provide nutritious forage for your geese. The grazing habits of these web-footed birds make them excellent orchard managers, as they'll not only reduce your mowing chores, but clean up diseased fruit as well. While the literature on this subject varies, it's generally agreed that the large birds prefer grasses over broad-leaved plants (the latter group includes legumes such as crown vetch). The geese at New Alchemy, for example, graze alfalfa reluctantly, and only if there's no grass available.

Furthermore, though grasses don't have the nitrogen-fixing capabilities of legumes, this disadvantage will be somewhat compensated for by the soluble nitrogen contained in goose manure. Moreover, it's been found that, in certain situations, legume understories in orchards can actually provide too much nitrogen for optimal growth.

Also, it's true that certain ground covers might invade your garden, but in this situation, again, your geese would be an asset. Although geese will devour some vegetables, the birds will carefully weed around other undesirable (to them!) crops, such as potatoes and tomatoes. Therefore, rather than concentrating on keeping a ground cover out of the garden, you might actually want to locate some geese-suitable crops on the birds' side of your fence and let your feathered livestock do the weeding!

I've stressed the importance of geese rather than the values of specific ground covers because the large birds are extremely useful in orchard management, and without information about your climate and soil, it's difficult to recommend a suitable crop. You should check with local growers and the agricultural extension service in your area for advice, and establish several small-scale plots to test the growth and palatability of your chosen ground cover. If you then decide that legumes are necessary, select a legume/grass mixture. (In such a case you might consider introducing ducks to your orchard, as they will graze some legumes and are effective insect eaters, too.) You'll also find that it's a good idea to divide your orchard into two sections, and then rotate the birds to allow better pasture utilization and to avoid overgrazing.

Finally, because many ground covers compete with fruit trees for water and nutrients, mulching around the trees out to the drip line is a valuable technique. This method reduces water evaporation and provides organic matter and nutrients. Furthermore, the labor involved in mulching around the trees is minimal. We use partially decomposed leaves and add lime to the mulch when necessary. We've observed yet another advantage of using mulches: The geese keep the ground covering weed-free even when there's plenty of pasture available elsewhere.

John Quinney is the research director at the New Alchemy Institute. His work is based on an ecosystem approach to small farm design.


Previous | 1 | 2 | Next






Post a comment below.

 








Subscribe Today - Pay Now & Save 66% Off the Cover Price

First Name: *
Last Name: *
Address: *
City: *
State/Province: *
Zip/Postal Code:*
Country:
Email:*
(* indicates a required item)
Canadian subs: 1 year, (includes postage & GST). Foreign subs: 1 year, . U.S. funds.
Canadian Subscribers - Click Here
Non US and Canadian Subscribers - Click Here

Lighten the Strain on the Earth and Your Budget

MOTHER EARTH NEWS is the guide to living — as one reader stated — “with little money and abundant happiness.” Every issue is an invaluable guide to leading a more sustainable life, covering ideas from fighting rising energy costs and protecting the environment to avoiding unnecessary spending on processed food. You’ll find tips for slashing heating bills; growing fresh, natural produce at home; and more. MOTHER EARTH NEWS helps you cut costs without sacrificing modern luxuries.

At MOTHER EARTH NEWS, we are dedicated to conserving our planet’s natural resources while helping you conserve your financial resources. That’s why we want you to save money and trees by subscribing through our earth-friendly automatic renewal savings plan. By paying with a credit card, you save an additional $5 and get 6 issues of MOTHER EARTH NEWS for only $12.00 (USA only).

You may also use the Bill Me option and pay $17.00 for 6 issues.