338 



FARM MANAGEMENT AND CROP ROTATIONS 



The plan of rotation and fertilization for this farm is sum- 

 marized in the following rotation chart: 



Rotation Chart for Problem III 



Problem IV. Sometimes it becomes necessary to produce much 

 more hay than either corn or grain. This does not necessarily 

 mean that a definite rotation is not possible. For example, on a 

 certain farm 125 acres are under cultivation, and 115 acres are 

 permanent pasture. The farmer wishes to raise each year in rota- 

 tion twenty-five acres of oats, thirty-five acres of corn and sixty 

 acres of hay. 



One hundred twenty acres may be laid out into three forty-acre 

 fields, and each field cropped as is shown in Figure 221. 



Problem V. Plan a system of cropping on a 160-acre farm 

 in Wisconsin, which consists of twenty acres of drained peat, 

 twenty acres of fine sand, twenty acres of permanent pasture, and 

 the remaining portion of the farm consists of silt loam. All soils 

 are sufficiently supplied with lime. 



The following crops are to be grown : Forty acres of corn, about 

 thirty acres of hay (about ten of alfalfa), thirty to thirty-five acres 



