The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryOrange Judd Company, 1919 - 369 páginas |
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Página 32
... England , were the greatest of the pioneers who blazed the path subsequently followed by the experiment station . The organization of scientific experi- mentation with governmental aid dates from 1851. The American stations are an ...
... England , were the greatest of the pioneers who blazed the path subsequently followed by the experiment station . The organization of scientific experi- mentation with governmental aid dates from 1851. The American stations are an ...
Página 37
... England , begun in 1857 . He selected the best heads and kernels . The following table gives his results . EXPERIMENTS IN SELECTION OF WHEAT . Year Grains Length No. of grains No. of ears on one root 1857 Original ear ... 4 3-8 inches ...
... England , begun in 1857 . He selected the best heads and kernels . The following table gives his results . EXPERIMENTS IN SELECTION OF WHEAT . Year Grains Length No. of grains No. of ears on one root 1857 Original ear ... 4 3-8 inches ...
Página 45
... England and William Farrer of New South Wales have extensively practiced crossing the different wheat groups . Every variety and every intergradation results from such crossing . A local variety may acquire , not only rust resistance ...
... England and William Farrer of New South Wales have extensively practiced crossing the different wheat groups . Every variety and every intergradation results from such crossing . A local variety may acquire , not only rust resistance ...
Página 61
... England from 1250 to 1650 . Steam . After nearly two centuries of projection and in- vention , steam was successfully used for agricultural oper- ations in England in 1832. The system adopted was that of dragging the implements by the ...
... England from 1250 to 1650 . Steam . After nearly two centuries of projection and in- vention , steam was successfully used for agricultural oper- ations in England in 1832. The system adopted was that of dragging the implements by the ...
Página 62
... England , from one to eight oxen were used in the eleventh century , while four horses or oxen were usual in the seven- teenth century . The first plow in California ( about 1835 ) was a crooked branch with an iron toe . On the whole ...
... England , from one to eight oxen were used in the eleventh century , while four horses or oxen were usual in the seven- teenth century . The first plow in California ( about 1835 ) was a crooked branch with an iron toe . On the whole ...
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