' The Bulletin. 35 



pboric acid, and 1.4 pounds potash. At least sufficient pliosphoric 

 acid and potash should be supplied jn the fertilizer to return what 

 is removed in the crop, and considerably more if it is expected to 

 keep up the productiveness of the land by supplying the waste from 

 washing and leaching. Our experiments already reported on the 

 red-clay loam of the Iredell Test Farm show that this soil does not 

 need potash for pea production. The analysis of the soil shows it to 

 1)0 comparatively high in potash. Onr analyses of red (cecil) clay 

 loams from other parts of the piedmont, red (cecil) clays, and valley 

 lands prove them to be as rich or richer in potash than the soils on 

 which we experimented. We therefore feel safe in concluding that 

 these piedmont soils, which make up the main farming area of the 

 Piedmont section of the State proper, do not need potash for grow- 

 ing peas. In like manner analyses of the valley and main upland 

 i^nils of the mountains show them to be high in potash ; and experi- 

 ments with other crops on the Buncombe Farm on high potash soils 

 ^how that they do not respond, to any considerable extent at least, to 

 applications of potash. For the present at least, and until contradic- 

 tory evidence is obtained, we feel that we are safe in advising that 

 potash is not necessary in the growth of peas on the soils referred to 

 above in the piedmont and mountain districts of the State. This is 

 likely true, also, of the clovers and other leguminous crops. This 

 should mean no small saving to the farmers growing this crop on 

 these soils. The yield of hay on the Iredell Farm varies from less 

 than a ton to more than three tons per acre, according to season and 

 variety. Three tons of hay would remove 30 pounds phosphoric 

 acid, which would be almost returned by 200 pounds 14 per cent 

 acid phosphate. Our best results were obtained from the use of 300 

 to 500 pounds of 14 per cent acid phosphate per acre. We would, 

 therefore, suggest the following fertilization for piedmont red clay, 

 red-cla}^ loam and valley soils, and mountain, valley and main up- 

 land soils per acre : 



FOR LAND IN FAIR TO GOOD CONDITION. 



Acid phosphate, 14 per cent 300 to 500 pounds. 



Three hundred pounds would contain 42 pounds phosphoric acid 

 and 500 pounds 70 pounds phosphoric acid. Acid phosphate of 

 other grades can be used to supply these amounts of phosphoric acid. 



FOIl I'OiJli LAM). 



Acid phosphate, 14 per cent 300 to 500 pounds. 



Dried blood 30 to 50 pounds. 



In case acid phosphate has been used and it is found that the 

 peas are not making a satisfactory start, a side dressing of 50 to 75 

 pounds nitrate of soda may be applied to advantage. 



