1 Jan., 1902.] QUEENSLAND AGRICULTURAL JOURNAL. 39 
The Orchard. 
FROST-RESISTING MANGOES. 
In the annual report of the officiating Chief Commissioner of Settlements 
and Agriculture for the Central Provinces of India is the report of the manage- 
ment of the District Gardens, amongst others that of the Pachmarhi Gardens. 
These gardens appear to be situated on a plateau subject to frost, as Mr. J. 
Safdor Ali, the officer in charge, says in his report— 
“The yield of mangoes was very poor; the trees do not seem to flourish much; 
they were planted about fifteen or twenty years ago, but they are stunted and are 
not larger than trees of five years’ standing in the plains. Many of them have 
been killed by frost, and there is danger of frost every year. I ers imported 
a few choice varieties of mango grafts from Lucknow, but with quite a different 
object. If they were planted out, they would not grow more satisfactorily 
than those already referred to. I have noticed that the Pacaomarhi forest 
abounds in mango-trees, and they all seem to thrive well; frost does not seem 
to affect them in the least. Lintend getting the wild mango seedlings as stocks, 
and will graft the imported mangoes on them; the trees produced will be much 
hardier and the results more satisfactory.” 
In many parts of Southern Queensland and on the slopes of the Main 
Range, except in sheltered localities, the mango will not thrive, owing to the 
annual recurrence of frosts. It would be well if a similar experiment to the 
one recorded above were made in the interests of our own fruitgrowers. 
MANURE FOR PASSION VINES. 
It has been shown by Mr. F. B. Guthrie that each passion vine in fruit 
removes from the soil 6} oz. nitrogen, 14 oz. phosphoric acid, and 2? oz. potash 
annually, so that an acre planted with 300 passion vines, 12 feet by 12 feet apart, 
would remove 117 lb. nitrogen, 28 lb. phosphoric acid, 52 lb. potash. Mr. A. 
Despeissis, writing on the subject of “ Woodiness in Passion Fruit,” in the 
Journal of Agriculture of Western Australia, says :— 
Knowing that sulphate of ammonia of commerce contains about 20 per cent. 
of nitrogen, superphosphate about 14 per cent. phosphoric acid, and sulphate of 
potash of commerce 50 per cent. of potash, we arrive at the following mixture, 
in order to restore to the land all the elements of plant food extracted by passion 
vines, and by a crop of passion fruit, viz. :— 
Sulphate of: ammonia oti ae oi ... 600 Ib. 
Superphosphate of lime... ay, ee wy WOM og, 
Sulphate of potash ... ee om 100 ,, 
G 
Such a mixture, applied at the rate of 3 lb. per vine, would cost 4d. per 
vine or a little over. It should be applied a year or so after the vines are 
planted. 
Besides a liberal application of chemical fertilisers, it has been suggested 
that, considering that the woody disease is propagated by means of diseased 
seeds, and, moreover, that in all attacked vineyards there are some vines which 
always look healthy and appear to be proot against the blight, cuttings be 
taken from such vines and planted with a view to obtaining passion vines 
endowed with the immunity of the parent. 
