302 



IRRIGATION PRACTICE 



growing season, and in that particular are comparable 

 with the small grains and the grasses. They should be 

 sown in rows, between which cultivation should be prac- 

 tised as long as possible. Large yields may be obtained 

 with small quantities of water, providing they are care- 

 fully cultivated after each irrigation, and several times 

 between successive irrigations. 



FIG. 80. Irrigated "field peaa 



The furrow method of irrigation is almost invariably 

 used. The furrows are about 3 feet apart, and, to avoid 

 sun-scald, so filled that water does not touch the plants. 



These crops should be planted in moist soils, and, if 

 the soil is dry, it may be necessary to irrigate them 

 either by adding water just before or after seeding. After 

 seeding they need little water until the soil becomes some- 

 what dry. However, they are rapid growers and water 



