17 



Pa. A Study of Leaf Analysis Techniques . To (l) study methods 



of improving the techniques involved in sampling and preparing 

 leaf samples for analysis ; and (2) develop improved analytical 

 procedures for leaf analysis. 

 Hort. &7U-C 



Vt. Effect of Fertilizer Nitrogen on Availability and Uptake 



of Plant Nutrients . (1) Learn effect of different rates, 

 forms, and modes of application of N, on plant uptake and 

 availability of soil K, P, Ca, and Mg. (2) Study influence 

 of N fertilizers on legumes in relation to establishment, 

 nodulation, N, and mineral content of legume plants. 

 Agron. 67 



W. Va. Nutrition of Apple Trees in West Virginia . In a urea 



study, learn (1) most efficient and economical use of N applied 

 as sprayj (2) if N reserves in apple trees can be maintained by 

 N sprays alone; and (3) effect of N sprays on biennial bearing, 

 fruit size, fruit color, storage life, and fruit set. In study 

 of nutrient status of apple orchards, (l) evaluate nutrient 

 status of commercial orchards as learned by leaf analyses for 

 N, P, K, Ca and Mg; and (2) learn where in the State, nutrient 

 deficiencies might be appearing and to what extent such a 

 situation may exist. 

 Hort. 16 



W. Va. Nutrient Availability in P.elation to Soil Structure . To 

 learn effect of (1) soil structure on nutrient availability as 

 measured by chemical and biological tests of availability and 

 plant tests of nutrient absorption; (2) increased nutrient 

 content on crop yields in soils with poor structure. 

 Agron. and Genetics 106 (NE-11) 



W. Va. The Possible Relationship of Metallic Ion Toxicity to 



Drought Injury in Shade and Forest Trees . Learn (1) identity 

 and concentration of metallic ions associated with injury, 



(2) types of injury with which presence of high concentrations 

 of potentially toxic ions are associated as stem cankers, 

 pimple-type bark swelling, die-back of stems and roots, etc., 



(3) Species of shade and forest trees found affected; oaks, 

 black cherry, maple, yellow poplar, and others, (U) Geograph- 

 ical distribution pattern of types of drought injury related 

 to high concentrations of toxic ions, (f>) Point of origin and 

 nature of initial injury to tissues of affected trees and 

 response of adjacent tissues to near presence of injury, (6) 

 Ways in which injury may be artificially induced under controlled 

 conditions. 



Ent., For., PI. Path., Bact. 109 



