Date of this Version
Seepage may be prevented to some extent by employing proper methods of irrigation. Overirrigation may have a tendency to water-log the soil.
A small head of water, properly used, will irrigate more land and do better work than a large head gone over the land hurriedly.
The distance of irrigation ditches should be such that the water may travel between the ditches in about two hours.
If land can be irrigated in the fall with the same care that crops are irrigated in the summer, there is an advantage to fall irrigation. If water cannot be properly cared for and this irrigation is uneven, it is a detriment rather than a benefit to the land.
It is a disadvantage to ditch the potatoes as deep on the lighter soils as on the heavier soils.
With the exception of the first crop it is best to irrigate alfalfa after the hay is cut. Irrigation of the stubble is more easily and more evenly done than the standing crop. The hay will cure more quickly on the dry soil than on previously irrigated soil.
There is no material difference in the yields in sugar beets where the soil is plowed from 4 to 20 inches deep. This may be due to the fact that the soil is of a sandier nature. The plowing under of a second and third crop of alfalfa has not produced as large tonnage of sugar beets as the second and third crops that were plowed under.