No. 6. 



DEPARTMENT OF AGRICULTURE. 



S09 



Though there is little loss of phosphoric acid from soils through 

 any source except by crops, yet they draw on the soil to a con- 

 siderable extent. The amount of phosphoric acid in various farm 

 products and common products which farmers are familiar with is 

 given in the following table, showing the fertilizing constituents: 



TABLE 1. 

 SHOWING PHOSPHORIC ACID AND OTHER FERTILIZING CONSTITU- 

 ENTS IN AGRICULTURAL PRODUCTS. 

 Compiled from Tables in Hand Book of Experiment Station Work, O. E. S. 



Bui. 15. 



GREEN FODDERS. 



Corn fodder 



Sorghum fodder 



Rye fodder 



Oat fodder 



Common millet, 



Japanese millet 



Hungarian grass (German millet) 



Orchard grass (Dactylis glomerata),* 



Timothy grass (Pleum pra tense),* 



Perennial rye grass (Lolium perenne),* 



Italian rye grass ((Lolium italicum),* 



Mixed pasture grasses 



Red clover (Trifolium pratenso) 



White clover (Trifolium repens) 



Alslke clover, (Trifolium hybridum) 



Scarlet clover (Trifolium incarnatum) 



Alfalfa (Medicago sativa) 



Cowpea 



Serradella (Orinthopus sativus), 



Soja bean (Glycine soja) 



Horse bean ( Vicia f aba) , 



White lupine (Lupinus albus) 



Yellow lupine (Lupinus luteus),* 



Flat pea (Lathyrus sylvestris).* 



Common vetch (Vicia sativa),* 



Priekley comfrey (Symphytum asperrinum), 



Corn silage 



Corn and soja bean silage 



Apple pomace silage,* 



HAY AND DRY COARSE FODDERS. 



Corn fodder (with ears), 



Corn stover (without ears) 



Teosinte (Euchlaena luxurians) 



Common millet 



Japanese millet, 



Hungarian grass 



Hay of mixed grasses 



Rowen of mixed grasses 



Redtop (Agrostis vulgaris) 



Timothy, 



Orchard grass 



Kentucky blue grass (Pea pratensis), 



Meadow fescue (Festuca pratensis) 



Tall meadow oat grass (Arrhenatherum avena 



ceum) , 



Meadow foxtail (Alopecurus pratensis) 



Perennial rye grass 



49 



7S.61 I 4.84 



S^.19 1 



62.11 ! 



S3. 36 ' 1.31 



62. .58 



71.05 I 



74.31 ' 



73.14 ! 2.09 I 0.43 

 66.90 : 2.15 j 0.48 

 75.20 ! 2.60 ! 0.47 

 74.85 I 2.81 0.54 



63.12 3.27 0.91 



80.00 ' ' 0.53 



81.00 0.56 



81.80 1.47 : 0.44 



82. .50 I 0.43 



75.30 2.25 I 0.72 



78.81 I 1.47 I 0.27 



82.59 1.82 ; 0.41 



73.20 ' 0.29 



74.71 0.6S 



85.35 0.44 



83.15 1 0.96 I 0.51 



71.60 I 1.93 , 1.13 

 84. .50 ' 1.94 j 0.59 



84.36 2.45 0.42 



77.95 0.2S 



71.03 0.79 



75.00 1.05 : 0.32 



1.76 

 1.04 

 1.46 

 1.28 

 1.11 

 1.20 

 1.41 

 1.61 

 1.15 

 1.26 

 1.31 

 1.19 

 0.99 



1.16 

 1.54 

 1.23 



