The Indians were able to clear fields, of several hundred acres in extent, without the aid of metal tools, using fire as their chief agent. Trees, too large to be cut with their stone hatchets, were killed either by building a fire at the base or by girdling the bark. The trees in dying furnished fire wood for domestic use. Planting began among the dead trees wherever enough loose dirt could be scraped together to make a hill for seeding. In the course of time the fields became entirely free from forest growth. These fields were cropped in most cases until their fertility was exhausted and then abandoned. If there was no more available fertile land in the vicinity, the tribe moved to a new location. The early white settlers on the Atlantic Coast found many of these abandoned clearings. Because of their unproductiveness they were called "poisoned fields."
The Indians had only the crudest sorts of farming tools. Near the coast, sea shells were the most efficient implements they possessed. The fresh-water clam-shells came next in usefulness. Where these natural scrapers were not available, pointed sticks, and pieces of flat rock served the purpose. One writer describing the Illinois Indians' method of farming says:
This tillage consists in breaking up just the surface of the earth with a sort of wooden instrument, like a little pickaxe, which they make by splitting the end of a thick piece of wood, that serves for a handle, and putting another piece of wood, sharp pointed at one end into the slit. This instrument serves them instead of a hoe or spade, for they have no iron tools.
Indian vs. Old World Culture
Attention has been called to the fact that all of the field crops of Great Britain, at the time of the English settlements in America, were broad-cast seeded. The Indians had developed a far different cultural treatment for their crops. In their most common method, that of hill planting, the soil in the intervening spaces was not broken. The hills, two to four feet apart, were from 12 to 20 or more inches in diameter. The soil in these hills was all that was stirred or loosened. All weeds, both in the hills and the intervals between them, were kept cut or pulled out. Four to six grains of maize and two or three beans were seeded in each hill, separately spaced. Squashes and pumpkins were sometimes seeded with the corn and beans. This mixed seeding is a unique feature of American agriculture.
The Indians were fortunate in not having to contend with many of the weeds, insects and plant-diseases which now plague farmers and gardeners. Practically all of these pests, some of quite recent date, are of Old World origin and have been introduced by white men, into America.
Birds and small animals gave the Indians more concern than all their other pests combined. It was customary to build in their gardens small watch-houses in which the young folks took turns in staying to scare away crows and other troublesome birds.
The same hills were used year after year and became in time quite sizable mounds, remains of which have persisted, in some localities, until modern times. In the southwestern parts of Michigan, the early settlers found large tracts of ridged land, evidently relics of Indian agriculture. It is now thought that these areas were corn fields in which the seeding was made in continuous rows instead of hills. A French artist in Florida in 1564 pictured the Indians seeding their crops in rows.
After a few years of failure in their attempts to grow American crops, the English colonists adopted the Indian method of seeding, but usually neglected the weeding, and were subjected to ridicule for their shiftlessness by the painstaking squaws. In using work-animals for cultivating corn, it was found advantageous to destroy the weeds by stirring the ground in the intervening spaces.