Amount of \Yaicr Required by (_' 



141 



169. Least Amount of Water Which Will Permit Yields 

 of Different Amounts. In the next table there is given the 

 least amount of water taken from the soil which can be ex- 

 pected to give the yields for the different crops there stated : 



This table must be regarded as showing the minimum 

 amounts of water which will bring the crops named to 

 full maturity so as to produce the yields specified under 

 conditions of absolutely no loss by surface or under-drain- 

 age, and where the evaporation from the soil itself is aa 

 small as it can well be. It must be farther understood that 

 the soil at seeding time already possesses the needful 

 amount of water for the best conditions, and that at the 

 end of the growing season it is yet so moist that no check 

 to vigorous, normal growth has occurred. 



Table showing the highest probable duty of water for differ- 

 ent yields per acre of different crops. 



