-h9 - 



Ky. A Study of Blueberry Production on Moderately and 



Slightly Acid Soils . To learn, by various cultural prac- 

 tices, If blueberries may be successfully grown on mineral 

 soils of higher pH than is usually recommended. 

 Hort. 557 



Maine Increasing Plant Steuid in Blueberry Fields , To discover 

 factors influencing spread, of blueberry; discover economical 

 methods of Increasing plajit stand and originating blueberry 

 fields . 



Sort,, Agr. Engin. 23 



Maine Pruning Experiments on the Lov-Bush Blueberry , Main 



objective is to develop a pruning method which might replace 

 burning which is now used. It is also desirable to use some 

 conventional methods of pruning in connection with burning 

 to find more efficient and effective procedure and eq.ulpment 

 for fields that have factors which make burning necessary. 

 Also to learn under varloxis conditions if a 2 -year or 3 -year 

 cycle of pruning is most profitable, 

 Hort., Agr, Engin. 75 



Maine Nutrition of the Low-Bush Blueberry . To learn effect of 

 native soil fertility, fertilizers, soil amendments, growth 

 regulators, and certain management practices upon nutrition 

 of low-bush blueberry in relation to vegetative response szid 

 frultfulness, 

 Agron. 96 



Mass. The Chemistry of Rsispberry Canes in Relation to Cold 

 Hardiness . Learn (1) dehydration intensities necessary to 

 caoise lnj\iry to a significant number of cells of raspberry 

 canes; (2) water sorption Isotherms on cane tissue during 

 winter season and degree and extent of hysteresis; (3) sea- 

 sonal variations in content of soluble protein, amino N, 

 pectic substances, etc; and, (k) try to find relation be- 

 tween dehydration intensities, sorption data, and chemical 

 composition. 



Chem. , Pomol. 97 



Mass. Nutrition of Ciiltivated Blueberries . Learn nutritional 

 req.ulrements of above so as to improve soil and fertilizer 

 management practices. 

 Poaol. 99 



Mass. Weed Control in Cranberries . To discover best means 



for controlling or ereuiicating weeds among cranberry vines. 

 Cranberry Sta, II6 



