& 



62 The Bulletin. 



slanting the teeth of the harrow backward. Harrowing in this way 

 saves after-cultivation, and is a quick and comparatively inexpensive 

 way of getting over the land. The land being thoroughly broken 

 before the corn is put in the ground, only shallow, level cultivation 

 with some one of the considerable number of good cultivators need be 

 given the crop during the growing season. The one-horse cultivators 

 cover corn rows in two or three furrows, and the two-horse ones at 

 a single trip. The cultivation should be frequent — about every ten 

 to twelve days — and, if possible, just after rains, so as to break any 

 crust formed by showers, leaving a dust mulch to retard the loss of 

 moisture added to the soil by previous rains. * Toward the end of the 

 growing season the cultivators should only be run one to one -and a 

 half inches deep, so as -to disturb as little as possible the roots of the 

 plants, which, by that time, are well into the middle of the rows. 



Fertilizers for Corn. — The experimental work on the sandy soils 

 of the east, reports of which have been made previously, has pro- 

 gressed far enough, we feel, to draw some conclusions in reference 

 to the best amounts and proportions of nitrogen, phosphoric acid and 

 potash for corn. As the results of the past five years' work have not 

 yet been published, the following formulas, based on the results of the 

 first two years' tests, and tests in other States with similar soil and cli- 

 matic conditions, are given as good ones for corn: 



For Corn on Land in Fair Condition. 

 No. 1— 



Acid phosphate, 14 per cent phosphoric acid 900 pounds 



■ Cotton-seed meal, 6.59 2 per cent nitrogen, 2.5 per cent phos- 

 phoric acid and 1.5 per cent potash 960 pounds 



Kainit, 12.5 per cent potash 140 pounds 



2,000 pounds 



This mixture will contain: available phosphoric acid, 7.5 per cent; 

 potash, 1.6 per cent; nitrogen, 3.2 per cent (equal to ammonia, 3.9 

 per cent). 



No. 2— 



Acid phosphate, 14 per cent phosphoric acid 1,045 pounds 



Cotton-seed meal, 6.59 per cent nitrogen, 2.5 per cent phos- 

 phoric acid and 1.5 per cent potash 520 pounds 



Nitrate of soda, 15 per cent nitrogen 225 pounds 



Kainit, 12.5 per cent potash 210 pounds 



2,000 pounds 



In this formula one-half of the nitrogen is supplied by nitrate of 

 soda and the other one-half by cotton-seed meal. This mixture will 

 contain : available phosphoric acid, 8.0 per cent ; potash, 1.7 per cent ; 

 nitrogen, 3.4 per cent (equal to ammonia, 4.0 per cent). 



2 6.59 per cent nitrogen equals 8 per cent ammonia. 



