-21- 



Ark. 



Ark. 



Calif. 



Calif. 



Calif. 



The Influence of Cultural Practice Combinations on the 

 Yield and Quality of Cotton . (1) Learn influence of combining 

 recommended cultural practices on yield & quality of cotton 

 produced. (2) Find ways of increasing efficiency of produc- 

 tion with emphasis on acceptable yields on a shortened land use 

 time & on higher yields utilizing full growing season. (3) 

 Learn better ways of using hairy vetch & crimson clover with 

 cotton planting practices. (4) Determine a "stand" of cotton 

 under different fertility levels & planting dates. (5) Learn 

 effects of varying cultural practice combinations on quality of 

 lint produced. 



Agron., Agr. Engin. 413 



Fertilizer Studies with Cotton and Soybeans . Cotton; (l) 

 anhydrous ammonia, urea, N solutions, & any other newer source 

 of N that may become available with ammonium nitrate. (2) 

 Study time of application of various fertilizer elements. 

 (3) Evaluate methods of application of elements singly & in 

 combination, on germination growth, maturity, & yield. (4) 

 Evaluate varying rates of application of high & low analysis 

 fertilizers. (5) Learn differences between high & low analysis 

 fertilizer for cotton. (6) Evaluate residual effects. (7) 

 Study fertilizer response as related to results of chemical 

 soil tests & to soil types. 



Agron., Brdg. Sta. 444 



Chemical Weed Control on Cotton . To develop (l) satisfac- 

 tory programs of weed control in cotton culture, by controlling 

 annual and perennial weeds in cotton fields, and by controlling 

 similar weeds in nearby areas that act as weed seed reservoirs; 

 and (2) comparative programs in other row crops, using as a 

 basic source of information the results obtained from investi- 

 gations in cotton. 



Bot. 1568 Coop. USD A 



Factors Affecting the Abscission Process in Relation to 

 Defoliation in Cotton . To learn of the physiological factors 

 affecting abscission and to develop more reliable and efficient 

 methods of defoliating cotton. 



Bot., Agron., Soils, Agr. Engin. 1581 Coop. ARS 



Development, Improvement, and Testing of Mechanical Equip- 

 ment for the Production of Cotton . To reduce labor & costs & 

 improve yield & quality. Stock shredders, planters, fertilizers, 

 cultivators, sprayers, dusters, topping machines, & harvesters 

 as well as cultural practices to improve performance of equip- 

 ment are to be tested. 



Agr. Engin., Agron. 1677 (W-24) Coop. USDA (Also see Part 



3, Section b. ) 



