104 



Manuring of Leguminous Crops. [may, 



It should be mentioned that it is also provided, under the 

 Customs Laws, that all barrels, sacks, &c, imported for the 

 purpose of containing grains, oils, &c, that are to be exported,, 

 are admitted duty-free. Similarly, such barrels, sacks, &c, as 

 have been used for these purposes on exportation are readmitted 

 free of duty on their return to Germany. 



The Essex Education Committee have carried out a series of 

 experiments on the manuring of beans, peas and clover, and 

 where practicable, the fields have been kept 

 Manuring" under observation in order to test the after- 

 of Leguminous effects of the manurial treatment on the 

 Crops. succeeding crops. In the case of a rotation 



beginning with a leguminous crop the after- 

 effect of the manures applied for the first crop is not simply a 

 question of manure residues, but is complicated by the fact that 

 owing to the power of these crops to absorb atmospheric nitrogen, 

 the soil is left rich in combined nitrogen, which the succeeding 

 crops are able to utilise. The manures applied to the beans 

 and the produce per acre from the rotation crops in this experi- 

 ment are shown below : — 



Manure per Acre. 





Produce 



per Acre. 





Beans. 



Wheat. 



Barley. 



Clover hay. 



Dung, 12 tons; superphos- 



Bush. 



Bush. 



Bush. 



Cwt. 



phate, 3 cwt. ... 



37'9 



437 



30-4 



457 



Dung, 12 tons 



34'9 



41:1 



29-1 



397 



No manure 



29-9 



36-0 



26*2 



38-0 



Basic slag, 4 cwt. 



31*5 



38*4 



28 0 



44 "2 



Superphosphate, 4 cwt.... 



34*4 



397 



■ 27-8 



40-4 



Superphosphate, 4 cwt. ; sul- 











phate of ammonia, 1 cwt. 



30-5 



397 



29-0 



40-5 



Superphosphate, 4 cwt.; sulphate 





38-8 



27-6 





of ammonia, 1 cwt.; kainit, 1 cwt. 



32-8 



43 '4 



