15 



N. H. Nutritional Studies with Horti cultural Plants . To (1) 



determine causes and prevention of leaf scorch; (2) study effect 

 of animal manures on leaf scorch and nutrition, and of (3) 

 organic compounds of mineral nutrients as compared with in- 

 organic forms on leaf scorch and plant response in general: 

 (U) determine factors causing mineral deficiencies; and (5; 

 effect of mulches on mineral nutrition. 

 Agr. and Biochem., Bot., Hort. hi 



N. J. The Boron Requirement and Metabolism of Plants . To 



study (1) B requirements of different species of plants grown 

 in sand or solution culture where levels of B supply can be 

 controlled; (2) factors affecting utilization of B, including 

 environmental influences and interaction with other elements; 

 (3) nature of role of B in metabolism of plants, as contribution 

 to understanding of above. 

 PI. Physiol. 502 



N. T. Studies of the Efficiency of Potassium Fertilizers in 



(Cornell) Relation to Plant Growth and Composition on Various New York 

 Soils. — 1. Studies of Potassium Fertilization of Corn With 

 Special Reference to the Effects of the Chloride Ion . Study 

 the effects of sources and rates of potash fertilizers applied 

 in row and broadcast upon yield and plant tissue composition; 

 study effects of chloride ion upon yield, plant tissue com- 

 position, and drought resistance. 

 Agron. 176-1 



N. Y. Mineral Nutrition of Fruit Plants at Various Stages in 



(State) Their Development! To learn (1) effect of major mineral 



supplements on growth, fruiting habits, and fruit quality when 

 applied or withheld at different stages of development of the 

 fruit plant, and (2) significance of interaction between cer- 

 tain nutrients (N:K, K:Mg) with respect to fruiting habits and 

 fruit quality. 

 Pomol. lit 



N. C. The Influence of Plant Nutrients Upon the Development of 



the Peanut Plant and Upon the Quality and Quantity of Fruit 

 Produced ! To (1) characterize deficiency conditions in peanuts 

 for all mineral elements considered to be essential for plant 

 growth; (2) evaluate effect of different plant nutrients upon 

 production of flowers and development of fruit; (3) characterize 

 changes in chemical composition of different parts of plant 

 throughout growing period; and (h) study physiological inter- 

 relationship between boron and calcium in peanuts. 

 Soils 108 



