458 



EXPERIMENT STATION RECORD. 



parative variety test, Goldfinder, Canadian Banner, and Waverley led in productive- 

 ness with a yield of 22 cwt. and 2 quarters per acre each. These same varieties 

 ranked first the year before. 



In experiments with turnips a complete fertilizer gave better results than an incom- 

 plete application. In a second experiment 10 tons of barnyard manure and 4 cwt. 

 of superphosphate per acre gave a slightly better yield than 20 tons of barnyard 

 manure alone. The yields of varieties of swedes and of yellow turnips are given in 

 a table. 



Reports of Danish state plant experiment stations, 1903, F. Hansen, K. 

 Hansen, N. P. Nielsen, A. J. Hansen, and L. Helweg (Tidsskr. Landbr. Planteavl, 

 11 (1904), pp. 303-323). — An account of crop conditions at these stations during the 

 season of 1903, with brief statements of the main results of plant culture experiments 

 conducted during the year. — f. w. woll. 



On the growing periods of crops in northern Norway, L. P. Nilssen ( Tidsskr. 

 Norske Landbr., 11 (1904), No. 6, pp. 235-272). — Statistics and other evidence con- 

 cerning crop production in northern and southern Norway were collected to test the 

 hypothesis of Schiibeler that, on account of the long summer days in northern lati- 

 tudes, plants require a shorter growing period in these regions than they do farther 

 south. Data regarding the time of sowing and harvesting of barley, oats, rye, peas, 

 potatoes, and turnips; the time of first growth, blossoming, and cutting of meadow 

 and timothy grass; blossoming and ripening of wild berries, and the fall of leaves are 

 presented. 



It is shown that the shortest growing periods are found in the inland counties, and 

 that in general the time required to produce grass ready for cutting, or to ripen grain 

 or potatoes, increases with the latitude until Finmarken is reached, where the requi- 

 site weather conditions for grain growing are not found. The average growing 

 periods of various crops for a number of years in different sections of Norway, going 

 from the south northward, are shown in the following table: 



Average growing periods of crops in Norway. 



The first section of the country includes the counties of Smaalenene, Jarlsberg, and 

 Laurvig; the second, Akershus, Hedemarken, Kristian, Buskerud, and Bratsberg; 

 the third, Nedeniis, Lister, and Mandal; the fourth, Stavanger, North and South 

 Bergenhus, and Romsdal; the fifth, North and South Drontheim, and the sixth, 

 Nordland, Tromso, and Finmarken. 



In view of these results the hypothesis of Schiibeler is considered applicable only 

 in those northern localities which have specially favorable soil and weather con- 

 ditions. The causes operating against a short growing period in the north are pre- 

 vailing cloudy weather during May and June, and low air and soil temperatures 

 during the summer months. These disadvantages, as a rule, more than outweigh 

 the influence of the prolonged sunlight of the summer days, and tend to reduce the 

 luxuriance of the vegetation and to shorten the growing period of plants. — f. w. woll. 



Hawkesbury Agricultural College and Experimental Farm, G. L. Sutton 

 (Agr. Oaz. New South Wales, 15 (1904), No. 3, pp. 283-290).— Varieties of wheat from 



