226 



COMPARISON BETWEEN VARIOUS ROTATION PEAS 



Percentage of Green Matter. 



It is interesting to see that the species which contains 

 the least water and the highest proportion of ash is the Jack 

 bean ; notwithstanding, in the case with which we are deal- 

 ing the total of mineral matters which it yields per hectare 

 is lower than that of cow peas and amberiques. On analysis 

 the Jack bean gives higher figures for lime and phosphoric 

 acid. These differences in no way imply the superiority of 

 any particular bean. 



Percentage of Dry Matter. 



Ash Cellulose Fat 



Yellow cowpeas ... 12-02 2851 3-22 



Grey „ ... 10-87 28-10 2-70 



Jack bean ... ... lo-oi 24-22 3-15. 



Mucuna utilis, black 8-66 41-25 2-23 



,, white... 8-8o 39-54 3-19 



,, striped... 6-87 38-30 3-76 



Amberiques ... 10-58 38-40 3-28 



Lima bean ... 9-70 38-56 2-48 



Pois dragees ... 9-90 34-67 2-45 



Non- 

 nitrogenous 

 matter 



35-46 

 .39' 59 

 44-06 

 2q-92 

 28-61 

 26-94 

 30-58 

 35-47 

 33-68 



Nitrogenous 

 matter 



20-79 

 1874 

 18-56 

 17-94 

 19-86 

 24-13 

 17-16 



13-79 

 19-30 



Total 



100-00 

 ICO'OO 

 100 00 

 loo-oo 

 10000 

 ico-oo 

 loo-oo 



lOOOO 



100-00 



It is impossible to decide from these results whether any 

 one pea is more valuable than another. The choice will 

 depend entirely on the type of cultivation intended and the 

 climatic conditions prevailing in the district where it is 

 grow^n. One pea may be best adapted to these conditions 

 whilst another may be better suited by a different climate. 

 The planter must gain his own experience and decide for 

 himself which varietv will be most remunerative. 



