-23- 



Miss. Improvement of Methods and Equipment for Defoliating and 



Harvesting Cotton * To (1) learn most effective stands & plant 



spacing for mechanical cotton harvesting in Delta area, (2) 



evaluate cultivation & weed control practices & develop methods 



for efficient mechanical harvesting, (3) test & improve methods 



& equipment for application of defoliants, (4) study mechanical 



characteristics of basic types of mechanical pickers, (5) learn 



amount of water actually added to seed cotton during picking 



operation & its ultimate effect on seed cotton storage & quality 



of lint, (6) investigate & locate causes of large concentrations 



of leaf trash & other foreign matter in mechanical cotton picker 



storage baskets, & (7) evaluate performance of mechanical pickers. 



Agr. Engin.. Agron. RRFU-2-b (S-2) Coop. ARS (Also see Part 

 3 Section b.) 



Miss. The Residual Effect of Various Herbicides on Cotton and 



Other Crops . To (1) learn rate of disappearance of certain her- 

 bicides from soil under field conditions, & (2) evaluate effects 

 of these herbicides on crop & weed plots under varying soil con- 

 ditions. 



PI. Path. RRFU-3 (S-18) Coop. ARS (Also see Part 24.) 



Mo. Soil Fertility and Cotton Production . Cotton Fertilization . 



Soil treatment of N, P, K, Ca, Mg, S, & trace elements will be 

 made on different soils of cotton area both with & without sup- 

 plemental irrigation to learn effect on yield, maturity & quality. 

 Soils, Agron. 267 



Mo. Water Management in Cotton Production . To study (1) pro- 



blems relating to obtaining suitable water supply for irrigation, 

 (2) methods & improve techniques for applying irrigation water 

 to cotton, (3) methods & improve techniques of drainage. 

 Agr. Engin., Field Crops 271 



Mo. Weed Control and Crop Defoliation in Cotton Production . 



Di scover more effective & more efficient (1) chemical & cultural 

 methods of weed control in relation to cotton production; (2) 

 methods of defoliating cotton. 

 Field Crops 332 



Nev. Cotton Weed Control in Southern Nevada . Test weed control 



measures developed in other areas for Nevada conditions, find 

 economical control for Johnson grass & perennial morning glory. 

 Agron. 15 



