INFLUENCE OF MANURES ON GRASS LAND. 159 



abundant, will not be surprised to learn that nitrate of soda, 
with two unimportant exceptions, has increased the percentage 
and yield of this plant. In many cases its yield has been 
more than doubled by 1 cwt. per acre per annum of this 
manure. Although this is the case, it has not been found that 
an increase in the amount of nitrate of soda, from $ cwt. to 1 
and 14 cwt. per acre, has been accompanied by any increase in 
the percentage of Yorkshire Fog. No doubt this is due to 
the fact that, being a plant of only moderate size, its develop- 
ment is much interfered with by the accompanying nerbage 
which large dressings of nitrate of soda force to luxuriant 
growth. 
No consistent difference could be traced in the relative 
effect on Yorkshire fog of nitrate of soda and sulphate ot 
ammonia. 
Table VIII.—Effects of Manures on Yorkshire Fog (Set 2). 





















| 
| Manures per Acre. Brampton. Gosforth. | Kirkbampton. Wigton. 
| | 
g fies : : Ge Gace Ge Ge Gm Cae Ge Ge 
1S) |) rs “ 4 le) © ON So © bf One O of Oy Oo WD 
SMW Sous ee | 2 ioe rie 3 te |low se ices Oe 
SH = & oe sw 3 Ey a AS} ee, BO ae | oS Se ky 
Sale| ©?) os Qs 2c ROE ise Ee vet OR 
42 s a ae a elicg a Pale |= alg 
Pia a Be | A s =! | Es a 
Ibs. | Ibs. | Ibs. | lbs. || ewt geal semi kewvic Ibs. |, ewt Ibs. || cwt.| % | lbs 
ee en ee a2 7n res) 442 )\le273 0 10 |ea77 N29 1 3e4 1 435. | 264) lirr-3 |) 335 
Pace G2 |e 392" ||"25) \irgc4)|) 375 \|025) | \rg:3.,, 3721 || 294 | 18'4.| 6x3)|| 27, | 28-4)|) 556 
| 
Se ecomExQON | i302 h2nte| 1x25) 280) |-2n iir6r9\ | 383) || 314 || 132 1) 469) ||| 24 9°7 | 2€0 
| 
4 | 112 | 588 | — | 392 || 2o$ | 17°5 | 406 || 23% | 10°6 | 28x || 272 | 7°6 | 236 || 20% | 23°6 | 773 
| 
5 || nie || eye = || 26D || Bae || HOP || 7ER || as 131 | 337 || 264 87 || BSS I glee 8°r | 276 
| 
| | 
6 | 112 | 392 | — | 588 || 254 | t9°3| 545 || 234 | 12°r| 315 |] 30 | 1373 | 446 || 334 | 1475 | 539 
Fae 5On soe — | 392 || 30% | 18°0} 609 || 23% | 1074 | 273 || 30% | 21r°0 | 723 | 29 | 24°5 | 795 
8 | 168 | 392 | — |-392 || 20%] 14°8 | 493 || 24% :| 11°6 | 321 || 34 | 15°0 | 609 | 34% | 20°6 |] 795 
9} 56 | — | 320 | 392 || 293 | 12°7 | 419 || 23% | 17°9 | 466 || 354 | T0°4 | 410 | 34 | 21°7 | 826 
To} 56 | — | 480 | 392 || 293 | 15-4 | 523 || 213 | 1074 | 253 || 334 | 82 | 302 | 384 | 21°9 | 938 












Lhe Influence on Yorkshire Fog of Supcerphosphate.—In the 
four tests conducted at each of three stations—Blencow, 
Eskdale, Glasson—there is no exception to the result that the 
percentage of Yorkshire fog is increased by the use of super- 
phosphate, whether alone or in combination with other 
manures. At Castle Carrock, on the other hand, the 
opposite is the case three times in four. Evidently, therefore, 
