WAY OF GROWTXG POTATOES 85 



land with cattle at the time mentioned would imagine 

 that excessive poaching or puddling of the land takes 

 place. Such is not the case, however. The land, due 

 to the water evaporation from the leaves, is actually 

 drier than uncropped land. Land, too, containing the 

 large amount of humus which accumulates in the soil 

 where continuous cropping is followed, does not suffer 

 as much from trampling as does land devoid of this 

 substance. Again, it should be understood that where 

 live-stock (other than sheep) do eat off these crops, 

 they are only allowed on the land for an hour or two 

 during the day. 



In practice there will generally be one portion of 

 the land from the winter-green crop cut off and carted 

 home, and another portion will be eaten on the land. 

 Under these conditions the manuring of the winter- 

 green stubbles will vary. 



Generally speaking, heavy manuring of potatoes 

 with dung is not advisable. Heavy manuring with 

 farmyard manure results in a heavy crop of tops ver} 

 susceptible to blight, and an inferior crop of tubers. 

 In more technical language farmyard manure is too 

 rich in nitrogen and too deficient in potash and phos 

 phates to grow a heavy and sound crop of potatoes. 



ARTIFICIAL MANURES 



Where the green crop has been cut and carted home 

 a dressing of from 15 to 20 tons of farmyard manure 

 per statute acre supplemented by a dressing of 4 cwt. 

 of superphosphate and i cwt. of muriate or sulphate 

 of potash per statute acre is recommended. If the 

 land is very poor, either a little extra farmyard manure 

 or I cwt. of sulphate of ammonia per statute acie may 

 be added to the above artificials. 



On boggy or peaty land sulphate of ammonia or any 



