SUPPLEMEMT TO )% 
EXPERIMENTS IN GROWING POATOES on a “Worn-out” Sandy-Loam Soil, 
WITH FARM MANURE, GROUND FISH, CHEMICAL COMPLETE AND INCOMPLETE FERTILIZERS 
Conducted at the Experiment Farm of The It ml JYew~Yorkeri Hirer Edge, Her gen County , *1*. J 
Potatoes planted April 14th, and dug August 9th. Name of potato, “Rural Calico, an early variety. Planted in rows or trenches three feet s-^Potato pieces, about the size of hens’ eggs, dropped one foot apart in the trenches. Season was very favorable throughout, neither too dry nor too wet. 
This part of the field, though cropped year after year for many years, had received neither fertilizers nor manure for many years. It was, thei^Bvery hungry and ready to. show its appreciation of a full meal, which rich soils never do. What did the soil need? Was it ground fish, chemicals, 
complete or incomplete fertilizers, or was it farm manure or hen manure? Was it nitrogen, phosphoric acid, or potash, separate or combined? id la large quantity of nitrogen used alone produce a crop? Would nitrogen, combined with phosphoric acid or potash, answer? Would the special com 
plete manure be improved by adding more nitrogen ? 
RESULTS FROM INCOMPLETE FERTILIZERS 
RESULTS FROM COMPLETE MANURES 
No. 1. 
Nitrate Ml'Soda 
200 pounds. 
NITROOKN ONLY. 
Nos. IK, 4, 7, 15, 25. 
Natural Soil. 
NO FERTILIZER APPLIED, 
No. A 
Dissolved Bone-Black 
400 pounds. 
PHOSPHORIC ACID ONLY. 
No. 6. 
Sulphate ot Potail j 
400 pounds. 
POTASH ONLY. 
Nos. IK, 4, 7, 15, 25. 
Natural Soil. 
NO FERTILIZER APPLIED. 
Nos. 9, 14, IS. 
Farm-yard Manure, 
Two years old—20,000 pounds, 
ALL THE ELEMENTS. 
Nos. 1G, 26. 
Men Manure. 
1,440 pounds and 2,880 pound: 
No. 17. 
Mapes’ Potato Manure. 
800 pounds per acre. 
ALL THE ELEMENTS IN SOLUBLE AND 
VARIED FORMS. 
Vine Growth rated 3 
Vine Growth rated 2 
Vine Growth rated 4 
Vine Growth rated 2 
Vine Growth rated 3. 
Vine Growth rated 5, 
Vine Growth rated 9 
Yield 
Vine Growth rated 2 
Yields 147, 1U0,169. 
Yield 
Yield 
141 
Bushels 
per 
Acre. 
Yields 88, 97, 68, 59, 59 bushels per 
Average Yield. 
139 
Bushels 
per 
Acre. 
68, 59, 59 bushels per acre, 
Average Yield. 
108 
Bushels 
per 
Acre. 
96 
Bushels 
per 
114 
Bushels 
per 
Acre. 
74 
Bushels 
per Acre. 
Bushels 
per Acre 
No. 8. 
Nitrate of*Soda 
Dissolved Bone Blaek 
000 pounds. 
No. 22. 
Nitrate ot Soda. 
Muriate of Potash 
320 pounds. 
No. 27. 
Blood. 
Nitrate of Soda. 
Sulphate of Ammonia 
1,100 pounds. 
No. 19. 
Mapes’ Potato Manure. 
1,200 pounds per acre. 
ALL THE ELEMENTS IN SOLUBLE AND 
VARIED FORMS. 
No. 24. 
Mapes’ Potato Manure 
1,200 pounds per acre. 
WITH MULCH ADDED. 
No. 28. 
Mapes’ Potato Manure. 
1,200 pounds per acre. 
WITH NITROGEN MIXTURE (SAME AS 
No. 27) ADDED. 
Complete Mixture. 
1,020 pounds per acre. 
SUPPLYING 
NITROGEN, PHOSPHORIC ACID 
POTASH. 
No. 23. 
Ground Fisli.' 
400 pouuds. 
Vine Grow in rated. 1, 
Vine Growth rated 3, 
Vine Growth rated 8, 
Vine Growth rated 7, 
Vine Growth rated 0 
Vine Growth rated 9 
Vine Growth rated 8 
Yield 
Vine Growth rated 10. 
Yield 
«QQ 
Bushels 
per 
Acre. 
Yield 
Yield 
Bushels 
per 
Acre. 
Yield 
235 
Bushels 
per 
Acre. 
183 
Bushels 
per 
Acre. 
139 
Bushels 
per 
Acre, 
110 
Bushels 
per 
Acre. 
REMARKS ON 
IIK INCOMPLETE FERTILIZERS 
REMARKS ON THE COMPLETE FERTILIZERS 
With the Complete Manures we have a different story to tell. All of the Complete Manures are not alike in supplying tu! meals, 
manure than are used here are necessary to supply abundance of soluble food and to eoiupete with the Special Complete Potato Mauuie 
any by the addition of nitrogen in the form of the parogen mixture (No, 27), 
