- 1^ - 



Calif. I, Composition, Behavior, and Fertilizer Responses of 

 Different Species of Fruit Trees Growing in the Orchard in 

 Soils Low in Potass itim and Phosphorus. II. The Relations'hip 

 of Sodium and Other Elements to the Potassium Wutrltion euad 

 Growth of Fruit Trees in Orchard Soils . To study (1) the 

 response of prune and other fruit trees on low potass i\jm 

 soils to applications of potassium; (2) the response and be- 

 havior of alJBond, apricot, apple, cherry, peach, pear, prune, 

 walnut, and filbert trees growing in the orchard in soil low 

 in phosphorus to applications of phosphorus. 

 Poaol. 991 



Calif. Riysiologlcal Effects on Fruit Plants of Chemicals Other 



Them Fertilizers^ To learn (1) nature of Injxiry and conditions 

 tinder which it occiirs from the use of a suspected chemical on 

 fruit plants; (2) long-term effects of a suspected chemiceJ. on 

 fruit plants; 5ind, (3) if there are conditions under which a 

 suspected cheiaicsG. may be safely used. 

 Pomol. ITOii^ 



Storrs Plant Tissue Analysis as a Measure of Nutritional Status 

 (Conn.) of Fruit Trees J To (1) note sesisonal trend in soluble nutrient 

 content of apple leaves; (2) note effect of tree position of 

 leaves on seasonal trend; (3) a- mass data by state -wide leaf 

 analysis survey to Indicate general nutritional levels of 

 apple orchards; (k) note if nutritional level of apple trees 

 varies by tree age and variety; and, (5) investigate relations 

 of soil fertility to tissue composition. 

 PI. Sci. 183 



Del. Factors In Nutrient Disturbances in Fruit Crops . To (l) 



correlate growth, productivity, and chemical composition of leaf 

 samples, with kind euid amount of NPK fertilizers applied in an 

 apple orchard; and, (2) study those fertilizing methods and 

 materials which may lead to an improvement in general nutritive 

 level of Delaware fruit plantings. 

 Hort. k9-E 



Idaho The Water Requirements of Tree Fruits . To (l) develop a 



practical technique for determining the point of critical water 

 deficit in fruit tree tissues; and, (2) measure effects of acute 

 water deficits on growth of trees and fruit. 

 Hoirt. 209 



Idaho Nutrition of Fruit Trees in Idaho . Learn nutritional needs 

 and work out effective and efficient means of supplying major 

 and minor nutrients. Develop improved techniques for diagnosing 

 nutr it ional def ic lenc les • 



PI. Physiol., Hort, 269 



