166 Lime Requirements of New Zealand Soils 



confine our attention to a comparison of the soils of one such district 

 in Southland with those of a " hme-demanding " area in the same 

 province ; and with both these we shall compare the typical Canterbury 

 Plains soils, which, though decidedly acid in reaction, have never given 

 a sufficiently gratifying response to Hming to encourage the extended 

 use of this material. 



The most typical area of soils requiring lime in Southland includes 

 the Plains between the Aparima and the Oreti rivers and between the 

 Oreti and the Mataura rivers, an area of over 300,000 acres, which 

 because of its physiographical relationship to the river flats already 

 described, we shall hereinafter refer to as the Terrace Lands. As a 

 suitable area of soils not requiring lime, we choose the flats of the 

 Oreti river between Dipton and Wallacetown, an area of some 80,000 

 acres, which we shall refer to as the River Flats. 



Lime requirement of these soils. The following tables show the hme 

 requirements of a number of soils from these areas as determined by 

 Hutchinson and MacLennan's method under standard conditions. 



Table IX. 



Lime Requirements of some Southland and Canterbury Soils by 

 Hutchinson and MacLennan's method. 



