30 



25 days was not included in the average of relative growths. At 84 

 days heads were just appearing, and at 129 days the heads were well 

 filled out in the check plat. The data on the relative growths are 

 given in Table XXIII. 



Tlie average of the relative growths sliows that there was a marked 

 depression on all the calcareous soils, the growth on Plat III being 

 only about a third of that made on the check plat. The plants in 

 Plats II to IV were plainly chlorotic, the chlorosis generally appearing 

 wlien the plants were about two or three weeks old. Some chlorotic 

 plants in Plats II to IV died, while a few individuals recovered their 

 green color and made almost normal growth. The majority of the 

 plants, however, lived along in a more or less chlorotic condition, 

 making very little growth. The surviving plants in Plats II to IV 

 were somewhat beliind the plants in Plat I in flowering and maturing 

 their seed. (PI. IV.) 



This somewhat unequal development of the plants at the end of 

 any specified time made it advisable to analyze the plants at several 

 stages of growth. In the analyses of the crops grown 102 and 129 

 days only the green stalks and leaves were used, the withered leaves 

 being discarded and the heads not analyzed for I'easons mentioned 

 in the first part of this report. The crops grown 84 days had a few 

 undeveloped heads, which were groinid up with the green straw in 

 preparing the sample for analysis. The few leaves which wei-e with- 

 ered at this stage were not incorporated in the sample. In analyzing 

 the crop grown 25 days the whole plant, except the roots, was used, 

 there being no dead leaves. This crop when cut had just commenced 

 to show all the outward effects of the carbonate of lime, the plants 

 being clilorotic and the growth depressed. The difference between 

 the individual plants in the lime plats had not yet become apparent, 

 however, the plants being pretty uniformly affected. The analyses 

 of the various crops are given in Table XXIV. 



