202 FUNDAMENTALS OF FRUIT PRODUCTION 



Table 66. — Influence of Potash-carrying Fertilizers upon Fruit Yields 



Investigator 



Alderman^. . . . 

 Alderman-. . . . 

 Alderman^. . . . 



Mc Cue"i 



Mc Cue"i 



Mc Cue"i 



Gladwin'* 



Gladwin'* 



Gladwin'* 



Gladwin'* 



Bailout 



Ballous 



Hedrick, et alw 

 Hedrick, et al^' 



Reimer'5* 



Reimeri" 



Reimeris* 



Reimeris* 



CoUison'o 



CoUison'" 



ColUson'" 



Collison^o 



CoUison^o 



CoUison^o 



Chandler25. .. . 



Brown^o 



Franklin 6 8 



Munsoni37. . . 

 Munsoni37. . . . 



Stewarti's 



Stewart'" 



Stewart! '8 



Stewarti'8 



Stewart"' 



Stewart!" 



Stewarti" 



Stewart'" 



State 



West Virginia 

 West Virginia 

 West Virginia 

 Delaware 

 Delaware 

 Delaware 

 New York 



New York 

 New York 



New York 



Ohio 



Ohio 



New York 



New York 



Oregon 



Oregon 



Oregon 



Oregon 



New York 



New York 



New York 



New York 



New York 



New York 



Missouri 



Oregon 



Massachusetts 



Maine 



Maine 



Pennsylvania 



Pennsylvania 



Pennsylvania 



Pennsylvania 



Pennsylvania 



Pennsylvania 



Pennsylvania 



Pennsylvania 



tions or unusual conditions of one kind or another and the problems 

 incident to their presence are hardly to be considered as belonging in the 

 field of nutrition. 



4. Two elements, phosphorus and sulfur, are found in all soils and 

 in all plants. Though they are necessary for plant growth, deciduous 

 fruits are able ordinarily to obtain all of them they require. However, 

 their apphcation in fertiUzers is frequently warranted, mainly because 

 of their indirect value to the trees through the effect they may have 

 on intercrops or cover crops. Some attention is devoted to this phase 

 of the orchard fertihzer problem. 



5. Two other essential elements, iron and nitrogen, though found in all 

 soils, are often either deficient in quantity or present in forms unavailable 



