126 ECONOMY OF FARMING. 



etrong and clean state of the soil especially agrees, and with which we use in 

 a higher degree the manure existing in the soil, than with the later fruits. Between 

 the harvest of wheat and the sowing of barley, in the first example, there is time 

 enough to plough up the field twice, and extirpate the weeds ; but we sow peas ; 

 thus these cover the field by their thick state, and protect it from drying up ; they 

 may also be drilled and hoed, and because they draw less out of the soil than the 

 culmiferous fruits, therefore we may expect from the barley, in the fourth year, yet 

 a very excellent harvest. 



b. In a warm climate, and a heavy soil. 



I. 1. Maize, tobacco, hemp, manured, and the first hoed. 2. Wheat 3. Barley, 

 Summer-wheat, or Oats. 



c. In a cold climate, and an easy soil. 



I. 1. Potatoes, manured, hoed. 2. Oats. 3. Winter-rye. 



II. 1. Winter-rye, half-manured. 2. Buckwheat. 3. Oats, half-manured. 4. 

 Winter-rye. 



d. In a warm climate, and an easy soil. 



I. 1. Maize, manured, hoed. 2. Winter-rye. 3. Oats. 



II. 1 and 2, as before. 3. Peas. 4. Oats. 



EXAMPLES OF THE ROTATION OF CROPS, WITH PLANTS FOR FODDER. 



a. In a cold climate, and a heavy soil. 



I. 1. Beans, head-cabbage, manured and hoed. 2. Barley. 3. Clover. 4. 

 Wheal. 



II. 1, 2, and 3, as before. 4. Peas. 5. Wheat, half-manured. 6. Oata. 



b. In a warm climate, and a heavy soil. 



I. 1. Maize, hemp, Swedish turnips, beets, manured and hoed. 2. Barley. 



3. Clover. 4. Wheat. 



II. 1, 2, 3, and 4, as before. 5. Vetches manured. 6. Wheat. 



c. In a cold climate, and an easy soil. 



I. 1. Potatoes, Swedish turnips, manured and hoed. 2. Summer-rye, barley, 

 and oats. 3. Clover. 4. Winter-rye. 



The Rotation in Norfolk is: 



II. 1. Turnips manured, and hoed. 2. Barley. 3. Clover. 4. Winter-wheat. 



d. In a warm climate, and an easy soil. 



I. 1. Maize, potatoes, manured and hoed. 2. Barley and oats. 3. Clover. 



4. Winter-rye, and as an after-fruit, water turnips. 



II. 1. Maize. 2. Barley. 3, 4, 5, 6, and 7, Luzerne. 8. Wheat. 9. Oats. 

 Thaer, Vol. II. p. xvii., furnishes the following estimates of the exhaustion or addi- 

 tion of power by different crops and modes of tillage. 



No. 1. 



PURE THREE-SHIFT, OR TRIENNIAL SYSTEM. 

 I 



1. Fallow, 

 1:^^ loads of manure, 



2. Rye, 12 metzen (20^ bushels), 



3. Barley," « ( " « ) 



4. Fallow, 



5. Rye, 7 metzen (11.82 bushels), 



6. Oats, 8 " (13^ " ), 



7. Fallow, hght folded, 



8. Rye, 8 metzen (13| bushels), 



9. Barley, 6 " (10 " ), 



Loss in 9 years, 1 degree. 



108 109 



