BAKLEY. 81 



Influence of Season on the Amounts of Produce. 



It has been seen that there were, under all conditions of Variations 

 manuring, very great variations in the amount of produce °^-fI oduc f 

 from year to year, according to season. The extent and and bad 

 character of the influence of season will be brought promi- s^om. 

 nently to view by comparing the produce of the best and the 

 worst seasons of the forty, and comparing the characters of 

 the seasons themselves. 



Tables 25 and 26 illustrate these points. Table 25 (p. 82) 

 gives the produce of grain, the weight per bushel of the grain, 

 the produce of straw, and the total produce (grain and straw 

 together), of six very different conditions as to manuring in 

 each of the best two seasons, and in the worst season of the 

 whole series. There is also given the deficiency of produce 

 in the bad season compared with that in each of the two 

 good seasons. 



For wheat, 1863 was the best season of the forty. For 

 barley, 1863 was also a very good year for both grain and 

 straw ; but it was not so good for such a variety of manures 

 as were 1854 and 1857, which (in the table) are adopted as 

 the best seasons. 



For almost all conditions of manuring, 1854 was the season Best 

 of the highest total produce, grain and straw together ; that seasons - 

 is, it was the season of the greatest luxuriance or vegetative 

 activity. But 1857 was, especially for the highest manur- 

 ing, the one of the highest produce of grain, and of the high- 

 est quality or maturity of grain, as evidenced by the weight 

 per bushel. Thus, 1854 was the highest for luxuriance, and 

 1857 the highest for maturation, of the crop. 



For wheat, 1879 was decidedly the worst season of the forty. Worst 

 For barley also 1879 was a very bad season; but 1887 was seasons - 

 worse still, especially for high manuring, and it is therefore 

 adopted as the worst season for barley. 



The plots selected for illustration are those without manure, 

 with farmyard manure, with mixed mineral manure alone, 

 with mixed mineral manure and ammonium-salts, with mixed 

 mineral manure and nitrate of soda, and with mixed mineral 

 manure and rape-cake. 



The figures speak for themselves, and will repay careful 

 study ; but we can only refer to them very briefly here. The 

 lower division of the table shows that, under each of the six 

 very different conditions as to manuring, 1854 yielded a much 

 higher total produce (grain and straw together) than 1857. 

 But the upper division shows that, notwithstanding there was 

 the less amount of plant in 1857, as shown by the less amount 

 of straw and total produce, it gave, in most cases, nearly as 



VOL. VII. F 



