Utilization of the soils in the Gilroy region
AuthorStanley W. Cosby
Hilgardia 1(18):455-480. DOI:10.3733/hilg.v01n18p455. May 1926.
Abstract does not appear. First page follows.
Care must be taken to observe the winds
And changing skies, what modes and habits be
The region’s heritage, what gifts each place
Bears or denies. These acres favor corn
In yonder vines grow better; elsewhere spring
Fruit orchards and a wealth of unsown green.
It was recognized early in agricultural history that individual crops do not grow equally well in all environments—that certain plants require definite climatic, soil, and other conditions for their maximum development.
Also, in regions containing diverse soils and growing diverse crops, it has been observed that under continued agricultural development there is a tendency, due to economic factors, for crops to be planted and to persist in soils where they are profitable and to disappear from soils where they are not. Eventually, the crops of a region will become aligned with the soils on which they are economically best suited.
In the south-central portion of the Santa Clara Valley a relatively long continued development of intensive agriculture has occurred, in which soil variation has been the chief factor in crop-distribution.