Morrow, G: Field Experiments With Corn, 1890 (Classic Reprin -

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Résumé :
Excerpt from Field Experiments With Corn, 1890

Among the many varieties of dent corn tried one or more years, twelve have been tested in 1888, 1889, and 1890, and each has averaged 67 bu. Per acre or more, the largest average yield being 80 bu. Of the yellow varieties, Learning, Fisk, legal tender, Clark's Iroquois, and Riley's favorite are medium maturing, and will be found desirable for central Illinois. Steward's improved is too late for this locality. Mur dock and Edmonds are early maturing, and may be grown farther north. Of white varieties, Champion white pearl or Burr's white, and Clark's 110-day are medium maturing and desirable for central Illinois. Helms improved is almost too late for this locality.

The stand of corn has been about 10 per cent. Less than the per cent. Of kernels sprouting under test conditions.

Barrenness does not seem to be a variety characteristic, but depends largely upon the season and the thickness of planting. The stalks had many more ears in 1889 than in 1888 and 1890. There were fewer bar ren stalks where corn was planted at the ordinary rate of kernels per acre than at either thicker or thinner planting. When four times as many kernels were planted, one-half the stalks were barren.

Without exception the medium maturing varieties (maturing about September 20th) have given each year a higher average yield than either the early or late maturing varieties - from 7 to 20 bu. Higher than the former, and from 2 to 7 bu. Higher than the latter.

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