7 



by planting after the first of June. It should he noted 

 that in the variety test of 1901, where most of the plots 

 afforded more than 20 bushels of seed per acre, plant- 

 ing did not occur until June 28. 



Raither late planting tends to promote seed production 

 and to reduce the growi:h of vine. Early planting pro- 

 motes a luxuriant growth of vines, with consequent in- 

 creased tendency for the vines to run and tangle, and 

 often results in a decreased yield of seed. 

 Whippoorwill peas planted in drills, April 19, 1898^ 

 and cultivated, did not ripen seed until the latter part 

 of summer, and a period of 160 days elapsed between 

 the dates of planting and picking, though properly the 

 hars'esting should have taken place several weeks 

 earlier. This was in a year when the rainfall was de- 

 ficient up to July, and abundant after the first week in 

 Julv. 



Compare this with the Whippoorwill variety planted 

 July 1, 1896, in drills in the special phosjjhate test. 

 Here all the pods were ripe 87 days after planting. 



Notice also that, in 1900, in the fertilizer experiment., 

 only 99 days elapsed Ijetween the planting and picking 

 of the Whipporwill cowpeas. 



Like\s"isQ Whipporwill peas planted June 28, 1901, 

 were picked almost clean 102 days after the date of 

 pjlanting. 



These and other examples which we might cite indi- 

 cate that by planting cowpeas rather late we greatly 

 shorten the period of gro^^i:h. 



Even when it is desired to grow two crops of cow- 

 peas the same year it is not necessary to plant aiany days 

 before May 1. In 1901 we grew two crops of New Era 

 cowpeas to full maturity, the second crop being from 

 pods ripening in midsumer. 



