32 



EXPERIMENT STATION RECORD. 



"[One hundred pounds of] youiif? corn plants 2 ft. high contained as much pro- 

 tein and ash as the same quantity of fully ni.itur.' corn, although the young corn 

 plant has 90 and the ripe plant only 60 per cent of water. This does not hold true 

 of the other constituents, however. The fiber, starch, etc., in 100 lbs. of the ripe 

 plant is nearly 10 times that in the young corn. The relation between the nitroge- 

 nous (protein) and carbonaceous (fiber, starch, etc.) constituents is as 1 to 3 in the 

 young plant and as 1 to 13 in the ripe corn plaut in September and October. 



"One hundred lbs. corn 2 ft. high contained 1.8 lbs. ash, 2.8 lbs. nitrogenous 

 matter, 6.2 lbs. carbonaceous, and 89.2 lbs. water. 



" One hundred lbs. ripe corn 9 ft. high contained 1.8 lbs. ash, 2.8 lbs. nitrogenous 

 matter, 35.4 lbs. carbonaceous, and 60 lbs. water." 



Wlien planted in tlie first half of May 4^ months were required for 

 the corn plant to reach its maximum weight of dr}^ substance; when 

 planted later the requisite time was less. 



Corn kernels were sprouted in moist cotton, and when the root and 

 stem each measured 2 to 3 in. the plants were analyzed. About one 

 fourth of the dry matter of the kernel was l9st in germination. Corn 

 kernels were sprouted in the ground, and when the plants were from 1 

 to 4 in. high with roots about 5 in. long they were analyzed, and tlien 

 contained from 58 to 79 per cent of the original dry matter of the kernels. 

 Corn plants 10 to 12 in. high were analyzed about 10 days after the seed 

 was planted. In some of these plants the dry matter was less than 

 that in the kernel idanted. 



Experiments with corn, C. C. Georgeson, F. C. Burtis, and D. 

 H. Otis {Kansas Sta. Bui 45, pp. 129-149). 



Synopsis. — Experiments on (1) frequency of cultivation, (2) detasseling, (3) ditTer- 

 ent distances between rows and in the diill, (4) butt, middle, and tip heruels 

 as seed, (5) methods of planting and cultivating, and (6) varieties. The results 

 for 1893 favor (1) cultivating once a week, (2) not detasseling, (3) planting every 

 16 in. in rows 4 ft. apart, (4) planting kernels from the tip of the ear, (3) 

 listing and deep cultivation, closely followed by surface planting and shallow 

 culture. Forty-eight varieties were tested. 



Frequency of cultivation (pp. 129-131). — This experiment occupied 30 

 plats. The following table gives the average results for three years: 



Frequency of cnJiiration. 



Times 

 cultivated 



(luring 



season of 



1891. 



Times 

 cultivated 



during 



sea3on of 



1892. 



Times 

 cultivated 



during 



season of 



1893. 



Average 



yield per 



acre. 



Twice a week... 

 Once a weekr... 

 Once in 2 weeks 



Bushels. 

 40. .SI 

 41.2!) 

 40.86 



The table shows that the best results were secured by cultivating 

 corn once a week. 



Detasseling (pp. lo2-13S). — On 2 plats the tassels were removed from 

 alternate rows. ( n 2 plats all the tassels which first appeared were 

 pulled, those developing later being left entire. Ou 2 plats the tassels 



