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VEGETABLE FORCING 



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Fig. 141. Frame cauliflower ready to head. 



may be grown both as a fall and as a spring crop. See 

 Chapter XV for data on the forcing of this crop. 



Celery is grown occasionally as a spring frame crop. 

 The plants should be started as explained in Chapter IX 

 and transferred to the frames, when there will be no un- 

 certainty about the possibilities of maintaining proper 

 temperatures. All the notes on celery as a greenhouse 

 crop, page 362, apply equally well to its culture in frames. 

 It .is possible to mature the crop six weeks earlier in 

 frames than in the open ground. 



Chinese cabbage may be grown in frames as a spring 

 crop with entire success, provided careful attention is 

 given to watering, ventilation and the removal of the sash 

 when the temperature becomes very high. See page 360 

 for additional notes. 



Corn salad, when given careful attention, is a profitable 

 frame crop. It is sown in rows about 8 inches apart. 

 Free ventilation and skillful watering are required to 

 prevent the ravages of damping-off fungi. 



Cress may be grown in frames in the same manner as 

 that explained for greenhouse culture, page 361. 



Cucumber (Fig. 142). The cucumber is one of our 



