[ 99 ] 



Boro rice and aquatic plants, can stand water-logging 

 throughout the season of its growth. Excess of moisture 

 is specially injurious at and immediately after the period 

 of germination, also at the periods of flowering and ripen- 

 ing. If it is necessary to irrigate for helping on germina- 

 tion, it is better to irrigate the field before sowing than after 

 sowing. 



126. Bakharing and trenching. If a field is irrigated 

 in preparation for sowing, it is advisable to wait until 

 the soil is sufficiently dry for passing the Bakhar for 

 the preparation of a tilth and for breaking the surface 

 pan. Scattering of water on the fields after the sowing of 

 seed, does, however, no harm. For this purpose the use of 

 irrigation ladels or spoons is advised. Plates and broken 

 pots are often used. But it is far more efficient to use 

 the irrigation spoon (Fig. ij. Trenching brings the sub-soil 



FIG. i. IRRIGATION SPOON. 



to the top, and where the subsoil is known to be richer 

 than the surface soil, this operation may be resorted to. It 

 is, however, much more expensive than ploughing, as trenches 

 have to be dug with spades. Trenching is done before valu- 

 able perennial plants such as roses, are planted. Trenching 



