A farmer with a good-sized herd such as John Middleton would haul eight or more ten-gallon cans of milk to the depot depending on the time of year. The milk was transported in a light wagon with two horses, which generally held only one farm's milk, though sometimes two or more families shared this duty. Rebecca Middleton recalled her brother collecting cans in an early model truck with a canvas top; he traded hauling with the neighboring Bradleys.[11] For a short time a community co-op, based in Floris, was also established to collect milk for shipment to Washington, D.C.[12] As this milk-laden caravan approached Herndon, the small station there bustled suddenly with activity. For at least one local resident, the sight and sounds were memorable. The "banging of the milk cans at the depot," recalled Lottie Schneider, who grew up in Herndon, "... resounded far and wide." "I liked to hear [it] ... for busy men were working and it was a friendly sound."[13]

Milking was, of course, just one of many chores involved on the family farm. After a 6:30 breakfast (still early in the eyes of many city dwellers) there were stalls to clean, equipment to sterilize, other farm animals to be cared for. Most Fairfax farms retained a few animals for home use even when concentrating on milk production. Before mechanization completely revolutionized farm work, draft horses provided the farm's muscle and a fifty-acre farm would need two to four for plowing, raking hay, and cutting wheat with a binder. The feeding and grooming of these animals formed a vital task. Though Lang and Hurst's commercial meat wagon came through Floris and other communities each Saturday, many families kept hogs and chickens for their own consumption.[14] Elizabeth Rice from the Oakton area stated that, despite her husband's reluctance to spend energy on any facet of farming outside dairying, they raised hogs, "kept on the back end of the farm in the woods."[15] In Floris nearly every family also raised hogs and chickens and Holden Harrison remembered that they "used to get about a hundred chicks each spring—we'd eat them all up by fall."[16] Few Floris area farms kept sheep, though census figures show about 1,200 in the county during this period.[17] In addition, dogs, cats, mules and an occasional goat made up the farm population, all demanding the farmer's attention and time.

With the stock watered, fed, given fresh bedding, and possibly turned out to pasture, the farmer could turn his attention to crops and other matters. Census records show hay and corn to be Fairfax County's most important crops. Little of these were sold commercially, however, rather they were used as support crops for the dairy industry.[18] Hay and feed stores abounded in neighboring towns but most dairymen attempted to supply their own straw, ensilage and grain, thus cutting costs by making the most efficient use of their land. This involved raising several crops and a year-round effort of cultivation.

Work began in early spring when a team of horses—later a tractor—pulled a steel plow across each field, turning up the earth into a rough and lumpy mass. Little was known of contour plowing or planting at this time, and the team was driven back and forth in straight rows. C. T. Rice and County Agricultural Extension Agent H. B. Derr both noted that erosion was a major problem in the area at the time.[19] The newly broken ground was then worked with a "drag," generally made of heavy logs chained together and topped with a platform on which the driver stood. The purpose of this implement was to use the weight of the "drag" to break up the soil clods. After this was finished, a field still needed to be worked once more before planting, this time with a harrow. The harrow resembled a large, spike-toothed rake, with two sections, each containing four rows of teeth. Passed over the field, it stirred up the ground and continued the pulverization of the soil to make a mellow, friable seed bed.[20]

These chores were exacting and time-consuming. Neal Bailey, who has spent many of his 66 years in working fields around Floris, estimated that a man and strong team could harrow or drag but a ten-acre field in about 6½ hours. Plowing took even longer. "Most of the land was hard to plow and we had to start as soon as possible in the spring in order to get through before it got too hard and sometimes we didn't make it," wrote Wilson McNair. The majority of farmers could plow only an acre or acre and a half in a day's time.[21]

Fairfax County's soil (principally Chester loam, a clay soil with a slightly acidic base) was deep, fertile and, as Joseph Beard put it, "adapted to growing the kinds of things cows like to eat at a reasonable price."[22] Because it was somewhat acidic, the soil benefitted from the addition of lime and, of course, needed other fertilizers. Fertilization techniques had been known for hundreds of years (George Washington burned oyster shells to obtain lime for his fields), however, their benefits were not always fully understood. Most farmers spread manure and some guano on their cropland, but correct chemical balances for specific crops were achieved only infrequently. Often the small landowner did not have spare fields to lie fallow for a year—the ideal situation for soil enrichment. "We spread some lime a time or two, but not nearly enough," admitted Wilson McNair. "We got burned lump lime and dumped it on the ground in piles of one bushel and when it had slaked we spread it with a shovel." The spreading itself could be a problem, especially when the earliest trucks began to be used in the mid-1920s. A truck hauling seven or eight tons of lime would bog down in a wet field: "The only way you could get out was to dump the lime, and if you dumped the lime you were in the hole you got stuck in." Thus, a lack of understanding of soil building techniques was coupled with the physical difficulty of fertilization, to inhibit the optimum efficiency of the land in the early 20th century.[23]

With the soil prepared, the crops could be sown. In the fall, generally between mid-October and Thanksgiving, winter wheat was planted. A "drill" or mechanical planter drawn by horses was used, which could be adapted for use with oats, barley or rye. The area had once been a principal wheat-growing region, but in the early 20th century dairymen cultivated wheat chiefly for the straw which was used for bedding. In the mid-1930s, however, the availability of certified seed (seed which was grown to be of a uniform and established varietal type, much as genetically pure livestock was bred) raised the quality of Fairfax wheat and slightly increased the grain's marketability.[24] Edith Rogers, a long-time Floris resident and for many years a member of the Fairfax County Board of Supervisors, grew wheat on her family's farm to use in chicken feed, and to have milled into flour for home use. It was ground at the Herndon Milling Company.[25] Like the use of certified seed, increased understanding of fertilization and crop rotation practices boosted production of wheat per acre, yet it never gained prominence as even a secondary crop. In large part this was due to the fact that wheat was a less desirable ingredient in cattle feed than was corn or even soybeans.[26]

Corn was planted in the spring, generally in late April. Again a drill was employed, which, planting two rows at a time, enabled the farmer to plant about ten acres in one day. The wide variety of uses for corn made it Fairfax County's most important grain crop and a 1926 report on the area's agriculture observed that "nearly every farm has more or less corn."[27] Not only was the grain a chief ingredient in the dairy cattle's "concentrate" or feed mixture, but it was used to feed horses, chickens and to fatten pigs near butchering time. The leaves and stalks were ground for ensilage or stored in the shock for dry fodder. During the 1920s, County Agent Derr promoted a continual campaign to improve the area's corn production and even introduced a new variety, dubbed "Fairfax County White Corn," because of its local success. He also worked to increase yields of other popular strains, notably Reid's Yellow Dent. In a report on his work in this field in 1925, Derr shows his methods to be not far removed from the early genetic experimentation of Gregor Mendel.

For the past four years the writer has assisted one of his best demonstrators in improving his crop of Reid's Yellow Dent Corn. The first year the best 50 ears were planted in 50 separate rows and at harvest time the best yielding 10 rows were selected for the next year's work. This work was continued, each year the number of rows being reduced. This year the results show a very uniform type of corn....[28]

Soybeans began to be introduced into the area during this period and Fairfax County farmers also sowed various grasses for summer pasturage and to make hay for winter feeding. Timothy and clover predominated among pasture crops. Some farmers persisted in raising alfalfa, despite H. B. Derr's repeated protests that it was unprofitable on the county's lime-poor soil.[29] A few ambitious farmers even experimented with grasses attempting to find those which produced the highest milk yields and one went so far as to have a special ladino clover seed brought from Oregon because he felt it increased the richness of his milk.[30] As with wheat and corn, improved varietal types and stricter control over the uniformity of the seed greatly aided the cultivator.