TILLAGE AND ROTATION EXPERIMENTS AT NEPHI, UTAH. 

 SEEDING WINTER CEREALS. 



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Four important factors related to the seeding of winter cereals, 

 namely, the time, depth, method, and rate of seeding, have been 

 rather extensively considered in the experimental work of the Nephi 

 substation since its beginning. All these factors are interrelated and 

 are so regarded in ordinary farm practice, but at Nephi each has been 



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cuirmrED a/ormallk 



A/OT CULT/KATED. 



4- S- 6 / 2 3 



DEPTH /A/ FETEi: 



Fig. 11.— Graphs showing the average seasonal decline in percentage of moisture in each of the upper 

 6 feet of soil, as found in the summer-cultivation tests of fall-plowed fallow at the Nephi substation, 

 1909 to 1912, inclusive. 



considered apart from the others arbitrarily, and the results are so 

 presented herein. 



Time op Seeding Winter Cereals. 



The experiments dealing with the time of seeding winter wheat 

 have been in progress since 1903. During that time winter wheat 

 has been sown each year at a uniform rate of 3 pecks to the acre on 



