.
Temperature and rainfall affect the number of days that work can be
performed upon the land and hence affect materially the economy of
labor. It is this fact that prevents the systematic organization of
labor so common in manufacturing and transportation. The climate also
affects the cost of producing live stock by modifying the food and
shelter required.
The climate of a region is best studied from the reports of the United
States Weather Bureau rather than from the statements published by
interested parties. So far as the production of crops is concerned the
distribution of rainfall is more important than the annual amount, as
may be shown by comparing the rainfall in such places as Columbus,
Ohio, and Lincoln, Nebraska.
The average temperature during the growing season is, of course, of
more importance from the standpoint of crop production than the
average annual temperature. Maximum and minimum temperatures or the
range of temperature must be considered as well as the average
temperature.
One of the most practical questions to determine is the average date
of the last killing frost in the spring and the date of the first
killing frost in the autumn; in other words, the length of the growing
season. Both altitude and topography enter into this problem. In a
given locality killing frosts will occur on a still night in the
valley before they do on the elevations, because the air as it cools
becomes heavier and flows down into the lowest places just as water
would do. On the other hand, as the altitude increases the growing
season shortens.
Whenever I am asked a question involving the production of farm crops
by a Pennsylvania farmer before answering, I ask three questions: (1)
Where are you located? (2) Do chestnut trees grow naturally upon your
land? (3) What is your altitude?
One factor that is often overlooked by the young farmer needs only to
be mentioned to be thoroughly appreciated. It is the amount and
character of the water supply. Not only is this of the utmost
importance from the standpoint of the household, but it is fundamental
to the best farm management. Thus, if the water supply is limited the
amount of live stock kept will be curtailed, and thus the proper
utilization of farm products prevented and maintenance of the
fertility of the soil made more difficult.
The young farmer should recognize that some kinds of farming are more
dependent upon the climatic conditions than others and sho
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