11 



( Zingeber officinale Roscoe) , dasheen ( Colocasia esculenta L. ) , arrow- 

 root ( Maranta ammdinacea L. ) , mungbean, and other crops producing eco- 

 nomic yield for small-scale farmers. 



In Taiwan, small-scale fcirmers also plant short -duration vegetable 

 crops under grape ( Vitis spp . ) vines during the dormant period or between 

 young fruit trees such as mango ( Mangifera indica L.) (I69) . This 

 practice provided incentives for additional income. Intensive vegetable 

 growers in Taiwan also interplant mustard spinach (Brasslca campestris 

 L. Perviridis Group) and bunching onion. Following the har/est of 

 mustard spinach, cauliflower is transplanted between alternate rows of 

 onion (I69). In south-central Taiwan, farmers interplant cauliflower 

 and pole lima bean or other crops in rotation with paddy rice {2^■, I69) . 



McLnagement of intercropping systems is sometimes more complex 

 than sequential cropping and may depend on several factors such as 

 season, crop, farm resources, market, and farmer skills. For example, 

 in Taiwan, farmers intercropped lima bean and cauliflower using three 

 methods (24). Farmers with abundant labor and small landholdings planted 

 high populations of cauliflower (21,000-30,000 plants/ha) with low seed- 

 ing rates for lima bean (25-30 kg/ha) to obtain high farm income. 

 Farmers who plauited late in the season used low populations of cauli- 

 flower (15,000-16,000 plants/ha) with high seeding rates for lima bean 

 (60-90 kg/ha) because they predict that the price of cauliflower will 

 drop during the peak harvest period of vegetables while the price of 

 lima besin will rise in response to reduced supply. Farmers who planted 

 early in the season used 20,000-29,000 seedlings/ha for cauliflower and 

 50-70 kg/ha of lima bean seed because the;/ predict that the price 



