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Mich# The "Secondary** Effects from Soil Application of 



Pea tic Ides* To acctaralate infonnation on hazards associated 

 with use of pesticides under Michigan conditions, particularly 

 those on soil* 



Ent. 451 (NC-19) 



Mo, Hazards Associated with the Use of Pesticides* To learn 



(1) rate of insecticidal accunulation in soils from normal usage; 



(2) plant and animal tolerance for varying degrees of soil 

 contamination; and (3) i*ate of insecticidal decompositicm in 

 a 4-yoar rotation in soils following initial applications at 

 normal and excessive rates* 



Ent. 283 (NC-19) 



N. J* Mnvemftntf Peraisteneep and Activity in Soil of Formula- 



lations of Phenoxv. Cffr>^gm^a. and Substituted Urea Herbicides* 

 To make further research on phenoxy, carbamate , and substituted 

 urea c(»po\mds to evaluate movement, persistance, and retention 

 on soil colloids, and to provide basic information on these 

 factors which will assure their satisfactory use* 

 Farm Crop 257 (NE-12) 



M* T* The Role ofSoils lji\ PT{ >i nt Response to Herbicides. To 

 (Cornell) study (1) influence of soils on fate of herbicides; (2) in- 

 fluence of herbicides on soils; and (3) plant response to 

 herbicides as influenced by the two factors above* 

 Agron* 55 (NE-12) 



N*T* The Influence of Soil Factors on the Activitv of Her- 



(Comell) bicides* To determine (l) effects of soil molst\ire, organic 

 matter, texture and related factors on the fate and activity 

 of important herbicides such as the phenoxy compounds, carbamates, 

 ureas, dinitros, etc*; and (2) develop working recommendations 

 for these herbicides over widest possible range of environ- 

 ment* 



Veg. Crops 167 (NE-12) 



Ohio Pesticidal Residues in Soils Following Pest Control 



Practices. To study (l) pesticidal acciamlations and dis- 

 integration in soils of various types following applications 

 for pest control; and (2) effect of pesticidal accumulation 

 in soils upon soil flora and fauna and on the growth, 

 quality, and yield of crops. 

 Ent. 110 (NC-19) 



Okla. The Effect of Additives on Microbial Soil Transformations. 



To (1) determine effect of DDT, toxaphene,malathion, dieldrin, & 

 2,4-£)on these microbial transformations: denitrification & ni- 

 trate reduction, symbiotic N-fixation, non-symbiotic N -fixation, 

 aononification, nitrification, organic matter deccxnposition, (2) 

 determine effect of temperature on above listed microbial trans- 

 formations, & (3) observe stimulation or inhibition of soil 

 microbial population by above ccmpounds. 

 Bact. 889 



