Crawrorp.—Growth of Cereals in New Zealand. 153 
SetensActe Field. 
Value of Crop 
Year. Kind of Crop. Kind of Manure and Quantity per Acre. per acre 
with Straw. 
1870... | Turni £0. d. 
. | Turnips cule us kanywa dung, and 3 cwt. 6 0 0 
no 
1871. = 3. | Barney .. 2 uet ni en on ground by sheep Bits 
1872 ae MAF ys .. | 2 owt. tga of soda 9.8. 93 
1873 Oats o manure E 715 0 
1874  ..| Beans .. | 2 cwt. bone 12 0 0 
187b .. | Barley .. .. |14 cwt. nitr e of soda, “and dj cwt. ji 6 9 4 
Pride uii ud of lime kj 
1876... .. | Barley... .. | 1} cwt. nitrate of MK and 1 cwt. super. 817 1 
phosphate of li j 
1877  ..|Barley .. .. | 24 ewt. nitrate ts soda, and 3 cwt. imme 700 
phosphate of li 
Ishould be inclined to think that continuous corn-growing in Great 
Britain could hardly come into competition with a rotation of crops, for one 
reason in particular,—viz., the want of provision for destruction of weeds. 
This is a diffieulty which would also occur in New Zealand, where, from the 
moisture of the climate, weeds are very difficult to be kept under. If a 
good payable system of rotation for this colony could be hit upon, I am 
inclined to think it would beat the continuous eorn-growing system. If, 
however, farmers will continue to work their land on the latter plan, I will 
again reiterate that they cannot continue to do so for many years without 
giving and keeping up a supply of phosphate of lime, of potash, and of 
nitrogen. 
I have seen it stated, on excellent authority, that pastures which are 
deficient in phosphate of lime in the soil ought never to be used for breed- 
ing sheep; for the lambs on such pastures scour, get pot-bellied, are deficient 
in size, and many of them die. This seems according to reason, for if there 
is an insufficient supply of mineral to form the bones, the animal must 
probably also suffer in other ways. Possibly, when the sheep has attained full 
growth, and his bones are fully formed, these pastures may do for fattening 
him ; or, if it will pay, the land may be treated with bone-dust, but it would 
be bend to suppose that this could be done with dis on a large sheep- 
run and with stock at present prices. 
