OTHER POINTS ON ROTATION 



339 



of grain, twenty acres of pasture in rotation, four acres of sugar 

 beets, and four acres of cabbage. 



Figure 222 shows the organization of the farm into eight fields 

 of nineteen and twenty acres each, except field VII, which contains 

 sixteen acres. 



The plan of cropping is shown in the accompanying rota- 

 tion chart: 



Rotation Chart for Problem V 



Year 



Field 

 I 



(20 A) 

 sand 



Rye 

 (mam- 

 moth 

 clover) 

 Clover 



Corn 



Rye (fol- 

 lowed 

 by soy- 

 beans) 



Corn 



Rye 



Field 



II 

 (20 A) 



Corn 



Oats 



Clover 



Pasture 



Pasture 



Corn 



Field 



III 



(19 A) 



Clover 



Pasture 



Pasture 



Corn 



Oats 



Clover 

 (9KA) 

 Corn 

 (9KA) 



Field 

 IV 

 (20 A) 



Pasture 



Corn 

 (10 A; 

 Wheat 

 (10 A) 



Oats 



Clover 



Oats 



(10 A) 



Corn 



Barley 



(10 A) 



(Alfalfa) 



Corn 



Tield 

 V 



l20 A)"' 

 peat 



Corn 



Corn 

 (rape) 



Corn 

 (rape) 



Corn 



(10 A) 



Oats 



for hay 



(seeded) 



Oats 

 for hay 

 (seeded) 



Hay 



(10 A) 



Pasture 



Field 

 VI 



(19 A) 



Alfalfa 



(9K A) 



Oats 



Alfalfa 

 Corn 



{^y. 



Alfalfa 



Barley 



(Alfalfa^ 



Corn 



Alfalfa 



Oats 

 (9KA) 

 Alfalfa 



Clover 

 OKA) 

 Alfalfa 



Field VII 

 (16 acres) 



4 acres 4 aores 4 acres 4 acres 



Clover 



Cab- 

 bage 



Sugar 

 beets 



Oats 

 (seeded) 



Clover 



Cab- 

 bage 



Cab- 

 bage 



Sugar 

 beets 



Oats 

 (seeded) 



Clover 



Cab- 

 bage 



Sugar 

 beets 



Sugar 

 beets 



Oats 

 (seeded) 



Clover 



Cab- 

 bage 



Sugar 

 beets 



Barley 



Oats 

 (seeded) 



Clover 



Cab- 

 bage 



Sugar 

 beets 



Barley 

 (seeded) 



Clover 



Note the cropping plan on the sand field, on the peat soil and 

 on field VII. Kelds VI and IV are the two best fields on which 

 to grow alfalfa. 



Manure is judiciously used. Some commercial fertilizers are 

 used on the sand field. Potash and acid phosphate are apphed 

 to the peat soil. Both acid phosphate and rock phosphate are 

 used to reinforce the manure used on the silt loam. 



Rape is sown in the corn on the peat for pasturage and for 

 soil improvement. 



Other Points on Rotation. — In cropping hillsides, care should 

 be given to lessen erosion Such fields should be kept in grass as 

 much as possible. 



In growing alfalfa, it is often convenient to divide a portion of 

 the farm into strips or units and on each strip practice a five-year 



