12. An attempt was made to demonstrate the toxic cft'ect of 

 Jowar roots when used as manure by manuring with this material 

 small areas (about a yard square) lying in a plot otherwise treated 

 naturally. Both cotton and Jowdr failed on the spots containing 

 Jowar roots. It is probable that the almost universal practice 

 of collecting and burning Jowar stubble in the fields constitutes 

 an attempt to obviate this toxic effect. The whole question 

 forms the subject of a separate publication. 



Cultural experiments. 



13. The plots under deep and shallow cultivation of last 

 year were continued this year, with the change that the plots 

 under Jowar last year were sown with cotton in the year under 

 report and those under cotton were sown with Jowar. 



The results were as under : 



