Spotlight On: Crops & Soil
U.S. Department of Agriculture Farmer’s Bulletin No. 1184 Issued 1921, Revised 1941 — The evident preference of the Chinese for the wild root and the unsatisfactory state of the general market for cultivated ginseng have caused grave doubts as to the future prospects of the industry. These doubts will probably be realized unless growers should strive for quality of product and not for quantity of production, as has been the all too common practice in the past.
We have hesitated to go public with our potting mix, not because the formula is top secret, but because our greenhouse experience is limited in years and scale. Nevertheless, we would like to offer what we have learned in hopes of showing that something as seemingly insignificant as putting together a potting mix can be integrated into a systems approach to farming.
What follow are a series of magnificent hundred-year old botanist’s watercolors depicting several useful grass varieties. Artworks such as this are found on the pages of Small Farmer’s Journal quite regularly and may be part of the reason that the small farm world considers this unusual magazine to be one of the world’s periodical gold standards.
The old way of selecting seed from open-pollinated corn involved selecting the best ears from the poorest ground. I have tried to select perfect ears based on the open-pollinated seed corn standards of the past. I learned these standards from old agricultural texts. The chosen ears of Reid’s average from 9 to 10.5 inches long and have smooth, well-formed grains in straight rows. I try to select ears with grains that extend to the end of the cob.
Finding just the right cover crop-tillage combination for crops planted the last half of June has always been a real challenge in our location. While surface-tilling mature rye and vetch in May works well for fall crops established in July and August, this cover crop-tillage combo does not allow enough time for decomposition and moisture accumulation for end-of-June plantings.
We were inspired to try no-tilling vegetables into cover crops after attending the Groffs’ field day in 1996. No-tilling warm season vegetables has proved problematic at our site due to the mulch of cover crop residues keeping the soil too cool and attracting slugs. We thought that no-tilling garlic into this cover crop of oats and Canadian field peas might be the ticket as garlic seems to appreciate being mulched.
From Dusty Shelves: A 1943 calendar for seeding your vegetable garden.
If you were visiting Earth from some other planet and had to describe its inhabitants upon your return, you might say that the average person eats rice, and grows it as well, usually on a small scale. You’d be accurately describing the habits of over a quarter of the world’s population.
Heretofore potato production in this country has been conducted along extensive rather than intensive lines. In other words, we have been satisfied to plant twice as many acres as should have been necessary to produce a sufficient quantity of potatoes for our food requirements. Present economic conditions compel the grower to consider more seriously the desirability of reducing the cost of production by increasing the yield per acre.
Our compost piles will age for at least a year before being added to the garden. We have learned that the slow aging is more beneficial to the decomposition process as well as not losing nearly as much nitrogen to off-gassing as happens with the hot and fast methods. Another benefit is the decomposition is much more thorough, destroying weed seeds, pathogens and any unwanted chemicals much better in a slower composting setup.
Cabbage is the most important vegetable commercially of the cole crops, which include cabbage, cauliflower, Brussels sprouts, kale, kohlrabi, collard, broccoli, and many others. It also ranks as one of the most important of all vegetable crops and is universally cultivated as a garden, truck and general farm crop. The market for cabbage, like that for potatoes, is continuous throughout the year, and this tends to make it one of the staple vegetables.
The bamboos are gaining increased attention as an alternative crop with multiple uses and benefits: 1) domestic use around the farm (e.g., vegetable stakes, trellis poles, shade laths); 2) commercial production for use in construction, food, and the arts (e.g., concrete reinforcement, fishing poles, furniture, crafts, edible bamboo shoots, musical instruments); and 3) ornamental, landscape, and conservation uses (e.g., specimen plants, screens, hedges, riparian buffer zone).
Our intention is not to advocate the oddball living mulches we use with this single row inter-seeding system, but just to show how it is possible to utilize the between-row areas to improve insect habitat, reduce erosion, conserve moisture, fix some nitrogen, and grow a good bit of extra organic matter. If nothing else, experimenting with these alternative practices continues to keep farming exciting as we begin our twentieth season of bio-extensive market gardening.
Years ago, my brother advised against plowing the patch of prairie on the back forty of our Hubbard, Iowa farm. “Some day,” he predicted, “that prairie will be as valuable as the rest of the 40 acres. We know how to grow corn; but that prairie was seeded by the last glacier.” Left untilled by generations of my family, the troublesome treasure has now become a jewel among a cluster of conventional crops on the farm.
The essential requirements of a soil upon which to grow onions profitably are a high state of fertility, good mechanical condition, properties – that is, if it contains sufficient sand and humus to be easily worked, is retentive of moisture and fertilizers, and is capable of drainage – all other requirements can be met.
Our cover crops have to provide the benefits of smothering weeds, improving soil structure, and replenishing organic matter. They also have to produce some income. For these purposes, we use turnips, mustard and lettuce within our plant successions. I broadcast these seeds thickly on areas where cover crops are necessary and let them do their work.
Wild potatoes bring increased calcium for better tubers.Have you ever cut into a potato to find a dark spot or hollow part? Early research shows that these defects are likely the result of calcium deficiencies in the potato — and that tuber calcium is genetically linked to tuber quality.
These types of team implements for digging potatoes were the first big innovation in horse powered potato harvesting in the mid-19th century. Prior to the horse drawn digger the limitation on how many potatoes a farmer could plant was how many the farm crew could dig by hand. The basic design of these early diggers works so well that new models of this type of digger are once again being manufactured by contemporary horse drawn equipment suppliers.