1890.] PUBLIC DOCUMENT — No. 33. 161 



advised. The young plants appeared above ground June 3. 

 The crop looked vigorous and handsome throughout the 

 entire season, yet was somewhat behind in its various stasfes 

 of growth. The entire crop was cut for the silo September 

 6 and 7, although the ears were not yet as far advanced as 

 desirable to secure the full benefit of the season. Early 

 frosts oblige us to cut our corn crops at the beginning of 

 the month of September. This feature of our local climate 

 advises the selection of early-maturing varieties of corn. 

 The green crop secured from the different plats varied 

 widely in weight, — a result apparently largely due to the 

 particular condition of the soil with reference to temporary 

 available resources of plant food. The majority of plats 

 (14, 18 and 20) had not been fertilized for several preced- 

 ing years ; Plat 13 was the only one, planted with the stated 

 variety of corn, which for years had been fertilized with bone 

 and potash. One year's treatment, spring of 1889, w^ith a 

 corresponding amount of these two manurial substances, 

 did not raise their productiveness to its full capacity. 



Plat 13 yielded 5,820 lbs. green fodder corn, or 43,88-1 lbs. per acre. 

 " 14 " 4,755 " " " " 35,853 " 



" 18 " 3,230 " " " " 24,354 " 



" 20 " 2,560 " " " " 19,302 " 



Clark corn, Plat 21, was planted on the same date as the 

 former, and treated alike in all particulars ; it did well 

 throughout the season ; it showed tassels July 19, and was 

 cut for the silo September 7. The crop was more matured 

 than the red-cob ensilage corn, yet was the lowest in 

 weight, — 2,365 pounds per plat, or 17,832 pounds per 

 acre. The main difference in the weight of the crops 

 secured from both varieties of corn does not express their 

 relative food value ; yet the difference in that direction is so 

 great that it must be admitted that the Clark corn is not a 

 success as an ensilage corn. 



