140 FRUIT CULTURE. 



upon fifty to one hundred bushels of dry muck, 

 would give similar results. Professor Goessman, 

 of the Massachusetts Agricultural College, rec- 

 ommends, as a fertilizer, supplying all the wants 

 of the grape, for an acre, — 



Soluble phosphoric acid .... 50 lbs. 



Muriate of potash . . . 100 " 



Nitrate of soda . . 25 " 



Crude sulphate of magnesia . . 20 " 



The phosphoric acid represents an equivalent 

 of from 400 to 600 j)ounds of the superphos- 

 phates of commerce. Continued experiments 

 by Professor S. T. Maynard incline him to in- 

 crease the nitrate of soda to 75 or 100 pounds, 

 according as wood growth is desired. He would 

 also increase the nmriate of potash (high grade) 

 to 150 pounds. 



As a simpler and economical form and at the 

 same time a comj)lete fertilizer for most kinds 

 of fruit, he recommends fine ground bone and 

 muriate of potash in the proportions given in 

 the chapter upon manures. To this a surface 

 dressing of 300 pounds of guano might be added, 

 in case the wood growth proved insufficient. 

 Bone meal is deservedly held in high esteem, 

 and this, added to the muriate, is probably the 

 simi)lest and best specific that can be given. 

 Where vines are planted at an average distance 



