Experiments in Field Plot Technic for the Preliminary Determination of Comparative Yields in the Small Grains
The book Experiments in Field Plot Technic for the Preliminary Determination of Comparative Yields in the Small Grains was written by author Stadler, Lewis John, 1896- [from Old Catalog] Here you can read free online of Experiments in Field Plot Technic for the Preliminary Determination of Comparative Yields in the Small Grains book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Experiments in Field Plot Technic for the Preliminary Determination of Comparative Yields in the Small Grains a good or bad book?
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The length of the so-called rod-row has usually been determined by convenience. Commonly used lengths when the rows are a foot apart are 16 feet for wheat, 20 feet for barley, and 15 feet for oats, since with these lengths yields in grams per row may easily be con- verted to bushels per acre. In other cases the most convenient length is determined by the dimensions of experiment fields. Although in- creasing the length of the row would doubtless reduce variability, a greater gain could be made ...on the same area by further replication. Ordinarily it is preferable, therefore, to retain the most convenient length and to make any desired increase in size of plot in the width, for widening the plots will rapidly reduce the proportion subject to border effect. Experimental Results. —Size of Plots. — By comparing the stand- ard deviations of single rows and blocks consisting of three and five rows each, in the check plots, it is possible to determine the relative value of plots of the three sizes in counteracting plot variability.
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