234 EXPERIMENT STATION EECORD. 



produced little difference in results among themselves, or as compared with 

 the yields on plats that have received no phosphate in 13 years. The bone 

 meal plats of this series showed a 667 per cent increase of cabbage the previous 

 year as compared with the check plat. 



With corn, the use of manure alone was followed by a yield of 5,460 lbs. 

 per acre of hay and rowen, and the use of manure and potash by 4,160 lbs. 

 Drought accounts for the low yields. 



The use of fertilizers rich in phosphoric acid and in potash resulted in yields 

 of 5,094 and 5,320 lbs. respectively of mixed timothy, red top, and clovers. 

 The proportion of clover was greater after the fertilizer richer in potash. 

 Barnyard manure, wood ashes, and a mixture of bone meal and potash have 

 given average annual yields of 6,373, 5,805, and 6,164 lbs. of hay respectively 

 since 1893, and the yields during the past year were 5,394, 4,708, and 5,160 

 lbs. respectively. Winter and spring applications of uiauure yielded 7,505.6 

 and 7,141.2 lbs. respectively of hay and rowen. The spring application pro- 

 duced the heavier yield of rowen alone. 



[Experiments with field crops], W. B. Rawson, W. Dibble, F. Gillanders, 

 J. Drysdale, and G. F. Earnshaw {'New Zeal. Dept. Agr. Ann. Rpt., 17 (1909), 

 VP. 123-132, 350-35S, 3G5-373, 3S5-//3//, l',2-^J,7).—Geuevdl reports of the 

 progress made in combating noxious weeds and of the condition of crops and 

 of the grass-seed market are given, together with the general plan of experi- 

 mental work at the 6 experimental farms. 



In experiments for the purpose of finding grasses adapted to infertile lands, 

 Phalaris commutata stood the frost well. All others were killed or injured 

 by the frost or cold drying winds. 



At the Waerenga farm the use of 10 cwt. of basic slag was followed by a 

 higher yield of green grass per acre during each of the following 4 years than 

 was secured after the same or smaller amounts of slag with kainit, or of super- 

 phosphate, sulphate of potash, lime, dissolved bone, bone dust, and sulphate of 

 ammonia in various amounts and combinations. 



The sowing of a mixture of Paspalum clilatatum and clover resulted in a pre- 

 ponderance of clover in the stand. Experiments in sowing grass mixtures with 

 wheat and barley as nurse crops are also reported. 



Applications of superphosphate, cyanamid, bone dust, dried blood, and sul- 

 phate of potash singly or in various combinations were followed by yields of 

 oats approximately three times as great as those secured from the check plats. 

 One cwt. of superphosphate and i cwt. of cyanamid apparently produced higher 

 yields than 1 cwt. of superphosphate alone or 2 cwt. of superphosphate and 1 

 cwt. of nitrate of soda. Notes are given on the results following applications 

 of calcium cyanamid to oats, prairie grass, carrots, rape, turnips, maize, cow- 

 peas, sainfoin, melilotus, and crimson clover. 



The Evergood and Dalmahay varieties of potatoes produced approximately 

 equal yields and proved blight resistant. The reports of the results of applica- 

 tions of superphosphate, whale meat, bone dust, nitrate of soda, and sulphate of 

 ammonia in various combinations are given. 



At the Ruakura Farm, 6 acres of Argentina oats yielded well and proved i-ust 

 resistant. As a top dressing for oats 1 cwt. of sulphate of ammonia proved 

 more profitable alone than with i cwt. of muriate of potash and also excelled 

 i cwt. sulphate of ammonia or nitrate of soda or 1 cwt. of nitrate of soda. 

 In another manurial experiment with oats, the highest profit followed an 

 application of 1 cwt. superphosphate and f cwt. of bone dust, while a loss fol- 

 lowed an application of the same mixture In addition to li cwt. of dried blood 

 and i cwt. of sulphate of potash. An application of 2 cwt. of superphosphate 

 and f cwt. cyanamid produced a profit of 5d. per acre. In another experiment. 



