110 

 (Read Preface) 



REQUIKEMEl^ITS AND METHODS OF GROWING SIVEET POTATOES 



Time to Maturity- 100 - 160 days 



Life- Annual 



Soil Requirements- Warm, sandy loam 18" or more in depth 



Climatic Requirements- Plenty of heat and sunshine, freedom from frost. 



Water Requirements- Moist soil without standing water. Scarcity of water 



desirable , 



Calendar of fperations- 



Preparing Seed Bed : January - March, plowed 



April, Replowed and v,;orked down. 



Planting : 



Time : April - June 15 



Quantity: 7,000 to 14,000 sets. (500# seed or 10,000 sets on 



average) 



Method and Distance: Set on ridges made by plowing 2 furrows to- 

 gether. Rows 3 - 4\ plants 8 - 15". 



Care of Growing Crop: 



May , Irrigated at time of setting out plants and sometimes 



once or twice again at 3 - 4 v/eeks 

 intervals, 



June, July and August, Cultivated 3 times at 2 to 3 weeks intervals 



especially after irrigating. Sometimes 

 plowed after irrigating. 



Varieties : 



Merced Sv/eet Southern Queen 



California Yellow Jersey Red 



Harvest: 



Time : August - December 



Method: Tops cut by hand, potatoes plowed out, picked up by hand 



and shipped in 100ji(^ sacks or crates. 

 Sometimes harvested with a potato machine 

 Yields- 



Good : 7 tons 

 Usual : 3 " 

 Commercial Sections- 



Butte, Fresno, Merced, Orange and Stanislaus Counties. 



