298 QUEENSLAND AGRICULTURAL souRNAL. [1 Aprrn, 1899. 
Pian or EXpPeriment AND RESULTS. 
Increase over 
. 
pees Fertilisers per Acre. Yield per Acre, 1895. Unfertilised Plot. 
i . i 
+ ee 40 bus. corn... 
1 | No fertiliser ass tsi Pa ae 193.950 Ib. straw ... 
2 § | 1,280 Ib. acid phosphate ... 593 bus. corn... 197 bus. corn 
400 ,, nitrate of soda ... 
477 bus. corn 
877 bus, corn... 
4,520 lb. straw 
3770 Ib. straw ... 
5,260 Ib. straw ... | 2,010 lb. straw 
p 
. 240 ,, muriate of potash ‘ 
| 1,280 ,, acid phosphate ... 
| 400 ,, nitrate of soda ... 
480 ,, muriate of potash 
91bus, corn...| 573 bus. corn 
4 400 ,, nitrate of soda ... 
{ 8,850 Ib. straw ... | 5,600. lb. straw 
1,230 ,, acid phosphate ... an * ie 4 
Potash was of great benefit in this experiment; the yield of ear-corn was 
increased 118 per cent. and that of straw 140 per cent. over the unfertilised 
plot, and 47 per cent. and 48 per cent. respectively over the plot fertilised with 
nitrogen and phosphoric acid only. The double application of potash did not 
increase the yield correspondingly, so that 240 lb. of muriate of potash per 
acre seems to be the proper quantity to apply to corn on this soil. 
The application of lime is of much importance for soils deficient in this 
ingredient. 
The effect of lime upon light sandy soils is shown by an experiment made 
last year by Mr. L. W. Marsh, Washington, Pa, U.S. 
Fervinising Expertment on Corn. 
By L. W. Marsh, Washington, Pa., U.S.A. 
E, - al Yieldsof | Increase over 
le of Fertilisers per Acre. Ear-Corn | Unfertilised 
Plot. per Acre. | Plot. 
Bushels. 
1 No fertiliser ... ee 4: ma Ny, je HN ey 49 S 
Ja | 2,000 lb. lime Tv hehe es ees a ky 3 655 153 
5) 615 ,, acid phosphate 76% 265 
“(| 200 ,, nitrate of soda ‘ 
615 ,, acid phosphate 
200 ,, nitrate of soda 
2,000 ,, lime cil 
615 ,, acid phosphate 
1 200 ,, nitrate of soda... 
120 ,, muriate of potash 
615 ,, acid phosphate g 
200 ,, nitrate of soda... ' 
120 ,, muriate of potash 
2,000 ,, lime te Ee. 
615 ,, acid phosphate 
200 ,, nitrate of soda : 
240 ,, muriate of potash... 
615 ,, acid phosphate 
200 ,, nitrate ofsoda... ae re ee by s+ | 8g 384 
240 ,, muriate of potash oy, ee ‘f) As wes c 4 
2,000 ,, lime... Srey i. 
882: 383 
SS rN eee 
% 
_ 
xh 
z 
Lime, when used alone, showed an increase of 31 per cent. on'the yield of 
ear-corn; in combination with nitrogen and phosphoric acid, only 5 per cent. ; 
while in combination with all three of the essential plant-food ingredients, it 
produced no increase whatever. Unfortunately, no record was kept of the yield 
of straw. i 
