61 



to high rainfall and temperature (Table lo). Fertilizer levels did not 

 influence pole bean yield. Leafy vegetable collard responded equally 

 to all levels of fertilizer (Table lO). 



Cropping pattern LM-LM-LM . Only English pea produced a low yield 

 at the low fertilizer level (Table lO) . Successive plantings of vegetable 

 legumes resulted in low yield of the third crop southern pea (Table lo) . 

 This result was consistent with previous studies (83, 84). Fertilizer 

 levels did not influence yields of southern pea which support the data 

 reported from previous investigations (1?, 59, 128, 155, ^56, l?^) • 



Cropping pattern HM-MM-M . Low yield of bulb onion was due to 

 late fall planting (Table lO) . Combined effects of previous southern 

 pea residue and low residual nutrients in soil contributed also to low 

 yields. Late planting predisposed onion seedlings to freezing tempe- 

 ratures, whereas pea residue reduced germination and seedling survival. 

 Squash productivity was low when planted in June because of hign tempe- 

 rature and humidity (Table lO). The high management fertilizer level 

 did not result in significant yield increase (Table lO) . Southern pea 

 produced satisfactory yields after squash; however, low yield was 

 obtained without fertilizer application (Table lO) . 



Cropping pattern HM-n4-MM . No significant differences in yield 

 of 'bulb onion were observed as a result of fertilizer levels (Table lO). 

 These yields, however, were generally lower than yields obtained from 

 cropping pattern HM-HM-HM. Low yield was the result of late planting 

 in November. A low yield of second crop southern pea was caused by late 



