Manures for a Four Years' Rotation. 325 



The rods chosen had, as far as possible, the same number of 

 roots growing on each rod (the numbers given in brackets 

 indicate the number of roocs on each rod). The best crop of 

 mangels was produced by the manures applied to plot 3, and 

 comparing plots 1 and 3, it is to be noted that the addition of 

 common salt has given a considerable increase. It is interest- 

 ing also to compare the results on plots 1 and 8 ; the smaller 

 dressing of the same manures on the latter plot has given 

 a rather better result and at a less cost. Comparing plots 6 

 and 7 the omission of kainit on the latter has not appreciably 

 decreased the mangel crop. The mangel plant was very 

 deficient on plot 5, and somewhat deficient on plots 3, 4, 6, 

 and 7. The combination of manures applied to plot 3 has 

 also given the best result at other centres in Hampshire. 



Red wheat (2 \ bushels per acre) was sown on the plots in 

 November, 1898. In this crop, again, it will be seen that 

 where the same manures were applied to plots 1 and 8, the 

 lighter dressing on the latter has given the best result 

 These two plots gave more wheat than any of the others. The 

 weight of a bushel of wheat was taken as 63 lbs. The crop 

 generally was a light one. 



The wheat was sown down with seeds in the spring of 1899, 

 and the young plant looked well on all the plots in the 

 autumn of that year. The best result on this crop was given 

 by the manures applied to plot 5, part of which had been 

 reserved for the young seeds. The results on plots 6 and 

 7 were satisfactory, and showed that basic slag is the only 

 manure that has given a considerable result on the hay crop 

 three years after its application. 



The crop in 1901 was " Tartar King " white oats. It will 

 be seen that the crop on plots 6, 7 and 8 has been sub- 

 stantially increased by the manures applied at the beginning 

 of the rotation, while plots 1, 2 and 3 have smaller but 

 appreciable increases. The crop on the whole was a satis- 

 factory one, and would have been heavier if it had not been 

 for the ravages of birds just before ripening. The weight of 

 a bushel of oats was taken at 40 lbs. 



The increase in value of the crops in the four years, 

 after deducting the cost of the manures in each case, is shown 



