AGRini.TI K.W. EXPERIMENT STATION. 



r,n 



The character of this growth has been clearly set forth on pre- 

 vious pages, in discussing the analyses of these samples of corn 

 fodder. The facts that appear can be emphasized, however, by a 

 display of the quantities of the different classes of nutrients found 

 to exist at the different periods of growth. 



The figures in Table XXXII are the results of applying the fore- 

 going analyses to the total yield of dry matter 



TABLE XXXII. 



PRODUCTION OF DIFFERENT (LASSES OF COMPOUNDS BV THE CORN PLANT AT 

 DIFFERENT STAGES OF GROWTH. 



2 k 



■- 



August 15th, ears beginning to form* 



August 28th, a few roasting ears 



September 4th, all roasting stage — 

 September 12th, some ears glazing.. 



September 21st, all ears glazed 



Gain after August 15th 



Gain after August 28th 



285.9 



3MS.7 

 376.3 

 372.4 

 416.1 



45S.4 

 611.7 



689.6 

 639.5 



649.8 



812.3 



1,214.0 

 1,192.0 



1,291.0 

 1,309.0 



1,428 

 2,892 



3,021 

 4,177 



4,457 



358.5 

 1,064.0 

 1,248.0 

 1,407.0 

 1,161.0 



130.2 



77.4 38. 1 



496.7 



95.0 



3,029 



1,565 



B02.5 



97.0 



108 



2'.i7 



357 



1,083 



7:>.7 



153.7 

 181.8 

 200.4 

 208.4 



l,0S3j 138.7 

 975 54.7 



* The manner of drying the sample taken from the lot cut at this period may 

 hare caused a loss of sugar. 



From August 15th to August 28th there appears to have been 

 considerable growth of the compounds of all classes, but after that 

 date the increase of dry matter was due chiefly to the formation of 

 one class of compounds. After August 28th, and until September 

 21st, the total growth was 1,828 pounds of dry matter, 1,565 

 pounds of which, or all but 263 pounds, belonged to the nitrogen- 

 free-extract. Of this 1,565 pounds, 1,072 pounds consisted of 

 sugars and starch. Two facts are clearly shown: First, that the 

 later growth of dry matter in the corn plant is made up chiefly of 

 non-nitrogenous compounds ; and second, a large percentage of these 

 compounds consisted of sugars and starch, substances that are the 

 best of their class for the purposes of animal nutrition. 



