SOILS, CROPS AND FERTILIZERS 



27 



Quantities of Fertilizers for Various Crops 



There are so many factors in de- 

 termining the fertilizer requirements 

 of the soil that it is quite impossible 

 tx) prescribe accurately the exact 

 quantities to be applied, without a 

 knowledge of the soil's condition, 

 previous treatment, etc. However, it 

 is well to remember that any excess 

 of potash or phosphoric acid will be 

 retained in the soil for the use of the 

 succeeding crop. The following pre- 

 scriptions for some of the more im- 

 portant crops may be taken as ap- 

 proximating the requlrementa per 

 acre under average conditions: 



FOR CORN AND OATS AND SPRINCJ 

 SEEDING:— 

 200 pounds nitrate of soda. 

 200 po'unds sulphate of ammonia. 

 400 pounds tankage (6-30). 

 1,000 pounds aoid phosphate, 14 per 

 ceat. 



200 pounds muriate of potash. 

 Guarantee: 4.5 per cent, nitrogen, 



10 per cent, phosphoric acid, and 5 

 per cent, potash. To be applied at 

 the rate of 600 to 800 pounds per 

 acre, when used alone, and 3 00 to 

 400 in conjunction with manure. For 

 corn, use about half in the hill, or 

 drill, and the remainder broadcast. 

 FOR TOP-DRESSING GRASS: — 



700 pounds nitrate of soda. 

 1,000 pounds ground bone. 

 300 pounds muriate of potash. 

 Guarantee: 6.5 per cent, nitrogen, 



11 per cent, phosphoric acid, and 7.5 

 per cent, potash. To be applied about 

 May 1st, or just as the grass is be- 

 grinning to show green, at the rate of 

 300 to 400 pounds per acre. 



For Early Fall Seeding of Grass: — 



3 00 pounds of nitrate of soda. 



700 pounds ground bone. 



700 pounds basic slag. 



300 pounds muriate of potash. 



Guarantee: 3.1 per cent, nitrogen, 

 10 per cent, phosphoric acid, and 7.5 

 per cent, potash. To be applied at 

 the rate of 600 to 800 pounds per 

 acre before seeding. For late fall 

 seeding, save the nitrate of soda and 

 about half the bone and nuriate of 



potash, and apply the following 



spring. 



For Potatoes: — 



300 pounds nitrate of soda. 



700 pounds tankage (9-20). 



6'jO pounds acid phosphate, 14 per 



cent. 

 400 pounds muriate or sulphate of 



potash. 



Guarantee: Nitrogen 4.8 per cent., 

 phosphoric acid 7.7 per cent., potash 

 10 per cent. To be applied broadcast 

 at the rate of 1,200 to 2,000 pounds 

 per acre, and harrowed in about 10 

 days after planting, or just before 

 the potatoes come through the 

 ground. 

 FOR APPLE TREES ( 1 to 7 years 



after planting) : — 

 200 pounds nitrate of soda. 

 400 pounds tankage (9-20). 

 400 pounds basic slag. 

 200 pounds sulphate of potash. 



Guarantee: 5 per cent, nitrogen, 

 8.3 per cent, phosphoric acid, 8.3 per 

 cent, potash. To be applied in the 

 spring, just as the leaves are expand- 

 ing, at the rate of 1-4 lb. per square 

 yard, gradually increasing the area 

 covered around the tree from 1 square 

 yard the first year to 3 to 50 square 

 yards at the end of the seven-year 

 period. 



FOR APPLE TREES (of bearing age 

 in cultivated orchards) : — 



Apply mixture of 10 lbs. of basic 

 slag and 5 lbs. of sulphate of potash 

 per tree at the time of the first 

 spring cultivation. Between June 

 15th and July 1, apply 3 lbs. of ni- 

 trate of soda per tree broadcast 

 under drip of branches. 

 FOR APPLE TREES: — 



In sod and neglected orchards, use 

 the following mixture per tree:^ — 



5 pounds nitrate of soda. 

 15 pounds tankage (9-20). 

 20 pounds basic slag. 

 10 pounds sulphate of potash. 



The first year use the full amount; 

 in succeeding years use one-half the 

 amount. Apply broadcast In the 

 spring, mostly toward the outer edge 



