10 



X. H. EXPERIMENT STATION 



[Bulletin 320 



Table 9. — Five year average yield, Livingston pasture 



Pounds per acre Difference from check 



Plot No. 

 2 



3 

 4 

 () 

 5 



1-8-14- 

 19-27 



Treatment 



Dry matter Protein Dry matter Protein 



Nitrate of soda, 312 lbs. 

 Calcium nitrate*. 333 lbs. 

 Cyanamid, 250 lbs. 

 Cal nitro, 250 lbs. 

 Sulphate of ammonia, 250 lbs. 

 Ave. yield clieck plots 



•After the third year this treatment was changed from calcium nitrate to cal nitro. 



ment for pasture sods. It is not likely that a farmer would initiate 

 a top-dressing system with nitrogen only, but would probably make 

 a start with a complete fertilizer or even with su]')erphosphate and 

 potash before using nitrogen. And it is very likely that even small 

 amounts of these other substances applied annually or moderate 

 amounts applied every second or third year would serve to increase 

 yields to some extent (as they have in the Livingston pasture) and 

 their ajiplication might serve to change to some extent the relative 

 rating of the materials in question. 



Home Mixed Fertilizers Compared 



In Seavey pasture comparisons are available for various home- 

 mixed fertilizers which include different nitrogen and phosphorus 

 carriers. The mixtures used and the yields secured are given in 

 Table 10, arranged in order of descending yields of protein. 



T.ABLE 10. — Seven year average yield, Seavey pasture 



Pounds per acre Difference from check 



Plot No. 



Treatment 



Dry matter Protein Dry matter Protein 



15 

 11 



14 



13 

 12 



2-9-16 



Cal nitro, 250 lbs. annually 

 Basic slag. 555 lbs. every 3 yrs. 

 Muriate of potash, 200 lbs. 



50% every 3 years 

 Nitrate of soda, 312 lbs. annually 

 Superphosphate, 500 lbs. 



20% every 3 years 

 -Muriate of potash, 200 lbs. 



50% every 3 years 

 Cyanamid, 250 lbs. annually 

 Basic slag, 555 lbs. every 3 yrs. 

 Muriate of potash, 200 lbs. 



50% everv 3 vrs. 

 8-16-16, 625 lbs. every 3 yrs. 

 Cal nitro, 250 lbs. in other yrs. 

 Nitrate of soda. 156 lbs. annually 

 Superph.osphate, \(>7 lbs. annually 

 Muriate of potash, 67 lbs. amni- 



ally 

 Check plots ave. No treatment 



2577 



2521 



462 



462 



837 



781 



202 



202 



TIk- data in lal.le lU are striking in that fields i.i" iIk- lir>i lour 

 treatments are very close together. Perhaps this is not surprising 

 as the same amount 'A plant food was a]:)i)lied to each plot, but the 



