479 



parts. It also sIiowh that the yicM i>er jilaiH quito rcunlarly decreased as the stand 

 became thicker, thongli not by auy moans [Jioportionally to tlie closeness of the stand. 

 • * * It would seem as if the smaller Hint maize ought to attain its maximum 

 development with a smaller area of soil, i. e. with closer planting than the dent 

 variety, but this has not been the case in this experiment. » * * [A table which 

 gives the (luantities of essential ingredients contained in 1,000 plants from thedilFcrent 

 plats], shows that not only the total dry weight per plant regularly increases with 

 increased distance of planting, but tliat the weight of each food ingredient in it 

 increased at a similar rate. It is a striking fiicfc that the percentage of allniminoids 

 in the dry matter from the individual maize plant regularly increased as the stand of 

 plants was thinner. * * * 



The effect of rale of plantinf/ as modified by manuring. — The extra phosxihate on each 

 plat, without exception, not only increased the total yield over the corresponding 

 plat which bad half the quantity of ])hosphate, but also increased the yield of each 

 food ingredient of the crop. It also slightly increased the percentage of albuminoids 

 in the ^yater- free crop. It, also increased the development of the individual corn 

 plant. We have no accniate data for caliulatiug the money gain or loss caused by 

 a^iplying the extra phosphate. ' * * 



Comjiarison of ike flint and dent varieties of maize. — The total watei'-free crop of 

 dent niaizo was largest and the total quantity of each food ingredient except liber 

 was greatest on the plat where the rate of planting was two stalks to a foot in the 

 row. * * * 



[With the dint variety] the total weight of ears was largest where the rate of plant- 

 ing was one stalk to a foot; the most sound kernels were harvested from thicker 

 idanting. 



The largest quantities of each food ingredient in the tiint maize were also harvested 

 from the plat where the stalks stood one to a foot, while in case of the dent variety, 

 two stalks to a foot gave the largest yield of these ingredients. 



The dent variety yie-lded 20 per cent, or one hftli more of water- free crop than the 

 lliut. 



The yield of sound shelled corn and of total slielled corn of the dent was only 

 Blightly larger than of the lliut. 



The increased yield of crop in the case of the dent variety was large in leaves, but 

 cbietly in strippect stalks. 



Kegarding next the chemical composition of the water-free crop, it appears that the 

 chief differences between the two varieties arc in the percentages of albuminoids and 

 fiber. The water-free crop of the dent variety has in round numbers 2.75 per ceut 

 more fiber and 1.75 per cent less albuminoids than the flint variety, and is, in so far, 

 pound for pound, less valuable as cattle food. 



The dent variety yields very considerably more per acre of fiber and of nitrogen- 

 free extract and somewhat more fat. The Hint variety yields considerably more ash 

 and about the same quantity of albuminoids as the dent. 



Remarks are made on the raising of corn for seed and for silage pur- 

 poses, and a brief statement is given of the general facts regarding the 

 effects of rate of planting on quantity and (piality as observed by other 

 experimenters, tlie statement being taken in substance from Dr. Ewald 

 Wolluy's rianting and Cultivation of Farm Crops. 



Experiment o/ 1SS9 (pp. 219-231).— The experiment of 188!) was simi- 

 lar to that of 1888 and was made on the same held. The kinds and 

 quantities of fertilizers, and the distance of planting were the same as 

 in 1888, but there were only six plats and they were all planted to White 

 Edge dent corn. " The experiment in its main features is a coufirma- 

 tiou of the previous experiment." The efiect of distance of planting on 



