HURTICULTURE. 



947 



The followiiio- tiible shows the fertilizer ingredients contained in 

 1,000 lbs. of ii number of California fruits and nuts: 



Soil ingredientu contained in 1,000 pounds of f resit fruit. 



Fresh fruit (crop of 1,000 lbs). 



Almonds 



Apricots 



Apples 



Bananas 



Cherries 



Chestnuts rt 



Figs 



Grapes 



Lemons 



Olives 



Oranges 



Peaclies 



Pears 



Prunes, French 



Plums 



Walnuts a 



Phosphoric 

 acid. 



Pounds. 



2.04 



.66 



.33 



.72 



1..58 



.86 



.11 



..58 



1.25 



.53 



.85 



.34 



.68 



.75 



1.47 



Nitrogen. 



Pounds. 

 7.01 

 1.94 

 1.05 



.97 

 2.29 

 6.40 

 2.38 

 1.26 

 1..51 

 5.60 

 1.83 

 1.20 



.90 

 1.82 

 1.81 

 5.41 



a Including hulls. 



"The figures found for apples (and i:)ears) are, on the whole, .so much smaller than 

 those which have been obtained for the other ordinary orchard fruits that it would 

 seem safe to conclude that here fertilizers will not be necessary for apple crops for 

 many years to come. However, the figures do indicate that the first need will be 

 for a nitrogenous fertilizer, and this is about what this station has been led to recom- 

 mend for most of our fruits. Along with this need will also come that for a phos- 

 ])hatic fertilizer. There is no reason to supply potash to apple orchards for a great 

 many years to come. The rather high quantity of sulphuric acid in the ash of apples, 

 like that of the ash of cherries and oranges, indicates the occasional need of a dress- 

 ing of gyjisum to the soil, which not only supplies the neces.sary sulphuric acid, but 

 lielps ti) make the potash pre.sent more available." 



The condition of success -with grafts, L. Daniec {Rev. Gen. Bot.., 

 12 {190(1), Xos. l.i^l^ ^>p. .ioo-UJS: 1'i2,j>p. J^05-I^15; l\3, pp. 1^1^7-1^55; 

 1M-, PP- 511-529). — The author reviews the earlier beliefs respecting 

 conditions necessar}^ for the successful grafting* of plants on each other, 

 defines certain terms used in grafting, and gives the conditions neces- 

 sary for success in grafting a large number of plants belonging to 

 different species, genera, and families. 



Grafts are divided into two groups — grafts by approach, or ana- 

 tomical grafts, and true or physiological grafts. The graft properly 

 ctdled, or physiological graft, is divided into two classes — ordinary 

 grafts and mixed grafts. There is an ordinar}^ graft proper when the 

 stock is deprived entirely of its assimilating apparatus and the scion 

 of its absorbing apparatus. In the mixed graft proper the stock may 

 preserve part or all of its assimilating apparatus, and the scion part or 

 all of its al)sorbing apparatus. In grafting by approach success is 

 considered to be attained when the two plants grow together in an 

 enduring manner, so that if separated a wound is formed. The graft 

 proper is .said to succeed w^hen after having lived a certain length of 

 time on the stock the scion fructifies and produces fertile seeds. 



