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QUEENSLAND AGRICULTURAL JOURNAL. {1 Fes., 1902. 
Answers to Correspondents. 
SEED WHEAT. 
Downs Farmer. 
Question.—I have a farm of 100 acres, nearly all in wheat and oats. Can 
I grow my own seed wheat? I am not satisfied with what I have 
bought. 
Unger’ Cone ne you can, but it will take time to produce seed 
sufficient for 10U acres. The Canadian farmers have lately been 
paying great attention to this matter, and last year 1,000 plots were 
entered for the seed-grain competition. They sow seed-grain in 
plots of j-acre each, and every year select the largest and best- 
filled heads. hese are threshed, screened, and hand-picked, and 
sown on other plots the following year. Two acres of land are 
sufficient to provide seed wheat and oats for a 100-acre farm, 
provided the land is specially prepared to ensure vigorous growth. 
CLEARING LAND WITH DYNAMITE. 
Dynamite, Caboolture.— 
Question.—I have 6 acres timbered with red oak. I want to plant 
e vines and pineapples on the land, but I have no time to grub the 
trees, some of which are 3 feet in girth. Can I destroy them with 
dynamite? If so, please tell me how. 
Answer.— Clear away some of the soil near the tap root. Then with a 
13-inch auger bore a hole slanting from the stump at about 6 
inches from the ground into the centre of the tap root. Press the 
detonator, with fuse attached, into the dynamite cartridge. Then 
insert the latter into the hole. Do not tamp it; only fill up the 
hole with some dry earth. Light your fuse, which, for safety, you 
should leave rather long, and retire to a safe distance. The 
dynamite will remove the stump or so shatter it that it can easily be 
taken out. Giant powder is useful for shattering a stump or tree, 
if it is intended to complete the operation by burning, as it operates 
more strongly in a downward direction than dynamite. 
LIQUID MANURE, 
Answer—Liguid manure is mainly the drainings or washings from 
manure, or urine of domestic cattle more or less diluted. A good 
proportion for diluting the drainings is half-and-half. If animals 
have been fed on food of fair average digestibility and quality, the 
urine will contain 75 per cent. of the nitrogen in the manure and 95 
per cent. of the potash, whilst the solid excrement contains 80 per 
cent. of the phosphoric acid, 90 per cent. of the lime, and 70 per 
cent. of the magnesia. Remember that urea decomposes rapidly when 
exposed to the air; therefore the urine must be applied to the soil 
as quickly as possible. If you cannot use it at once, then add to it 
some green vitriol or gypsum, to prevent the evaporation of the 
ammonia. Sulphate of ammonia which is not volatile will be 
formed. Fresh urine is a forcing manure very valuable as a 
nitrogenous fertiliser. 
In some European countries oil-cake is stirred into a tank 
containing a mixture of dung and water. The mixture is left to 
ferment for three or four weeks before using it. For garden 
purposes, to which liquid manure is more applicable than for field 
use, % 0Z. of sulphate of ammonia to 1 gallon of water is useful, but 
this should not be mixed with lime nor applied to land recently limed. 
