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Everbearing Strawberries
Altus Lacy Quaintance
Ernest Adna Back
Frank Getz Ashbrook
George McMillan Darrow
Howard Ross Tolley
Jacob Hiram Arnold
James Herbert Beattie
Lee Wiley Fluharty
Marion Imes
出版
U.S. Department of Agriculture
, 1917
URL
http://books.google.com.hk/books?id=Mn43jgEACAAJ&hl=&source=gbs_api
註釋
"The southern mountain farm often produces no more than a scant living for the family. Corn is the chief crop grown. Often part of the farm lies idle, being "rested," while corn is grown on another part year after year until the land is worn out. By growing three or more crops in rotation including clover, the farmer will be able to produce larger crops, make more money, and keep all crop land under cultivation all the time. Cattle, hogs, and sheep will not only add to the cash income, but will help to increase the fertility of the soil,a nd render larger crops possible. This bulletin describes crop rotations for small mountain farms in the southern Alleghenies, and gives complete directions for starting a crop rotation that will make poor mountain land more productive." -- p. [2]
