Food for ON UNCULTIVATED PASTURE LAND. 



Plants 



Per cent, remaining in the soil un- 



Kind of Fertilizer. Exhausted exhausted at the end of each 



year, 



1234567 



Lime 15 80 70 60 50 45 40 35 



Bone meal 7 60 50 40 30 20 10 00 



Phosphatic guano 6 50 40 30 20 10 00 80 



Dissolved bone, etc 4 30 20 10 00 00 00 00 



High grade ammoniated 



guanos 4 30 20 10 00 00 00 00 



Cotton-seed meal 5 40 30 20 10 00 00 00 



Barn-yard manure 7 60 50 40 30 20 10 00 



The figures given above are always used in fixing 

 the price for new tenants. In this country no such 

 careful estimates have been made, but the proportions 

 probably vary but little from those in other countries. 



Amounts of Nitrogen, Phosphoric Acid, and 



Potash Found Profitable for Different 



Crops Under Average Conditions 



Per Acre. 



REPORTS.) 



Phosphoric 



Nitrogen, Acid, Potash. 



Pounds. Pounds. Pounds. 



Wheat, rye, oats, corn 16 40 30 



Potatoes and root crops 20 25 40 



Clover, beans, peas and other legum- 

 inous crops 40 60 



Fruit trees and small fruits 25 40 75 



General garden produce 30 40 60 



Rotation hi Crops. 



In the changed conditions of agriculture elaborate 

 systems of crop rotation are no longer necessary. With 

 the help of chemical manures and the judicious use of 

 renovating crops farmers are no longer subject to rigid 

 rule, but may adapt rotations to the varying demands 

 of local market conditions. 



