434 



University of California Publications in Agricultural Sciences [Vol. 3 



best crop and soil no. 6 the poorest, while nos. 5, 1, 2, 6 is the order 

 for barley and wheat. Oats show nearly double the crop on soil 5 

 that it does on any of the other three soils. There is thus a general 

 agreement between the indicators that the soils are not of the same 

 productivity. 



Table 45 — Diablo Clay Adobe, First Crop 

 Wheat 

 Planted, November 6, 1915. Harvested, July 10, 1916 



Straw Grain Total dry matter 



A A. . A 



r \ i \ r \ 



No. Average Average Average 



Pot plants Weight weight Weight weight Weight weight 



1-1 Wheat 2 3.65 0.25 



Oats 4 2.15 0.69 6.74 



1-2 Wheat 



Oats 6 4.05 2.47 6.51 



1-3 Wheat 1 1.83 



Oats 5 5.20 5.62 1.64 1.68 8.66 7.30 



2-1 Wheat 5 5.33 0.05 



Oats 1 0.43 5.81 



2-2 Wheat 4 3.53 0.03 



Oats 2 0.69 0.04 4.31 



2-3 Wheat 3 2.55 



Oats 3 1.39 4.63 0.49 0.21 4.43 0.84 



Notes 



5-1 



5-2 



5-3 



6-1 



6-2 



8.04 



3.22 



1.72 



9.74 



3.25 0.70 0.17 5.53 



3.49 



