1 86 SOILS AND FERTILIZERS 



cise an injurious effect. Tobacco is injured as to quality 

 by manure. Flax, tobacco, sugar beets, and wheat, 

 which should not receive heavy direct applications, all 

 require manuring of the preceding crops. When in 

 doubt as to the crop on which to use the manure, it is 

 always safe to apply it to corn, and then to follow with 

 the crop which would have been injured by its direct 

 application. 



That coarse, leached manure may cause trouble in a 

 dry season, and well-rotted manure may cause grain to 

 lodge, are not valid reasons for manure being wasted as 

 it frequently is in western farming, by being burned, 

 thrown away in streams, used in making roads, or for 

 filling up low places. 



210. Comparative Value of Forage and Manure. - 

 The manure from a given amount of grain or fodder 

 always gives better results than if the food itself were 

 used directly as manure. The manure from a ton of 

 bran will give better returns than if the bran itself 

 were used. This is because so little of the fertility 

 is lost during the process of digestion, and the action 

 of the digestive fluids upon the food makes the manure 

 more readily available as a fertilizer than the food 

 which has not passed through any fermentation pro- 

 cess. It is better economy to use products as linseed 

 meal and cottonseed meal for feeding stock, and then 

 take good care of the manure, than to use the mate- 

 rials directly as fertilizer. 



