1999 Bushland Summer Crops Field Day / 
 1999 summer crops field day :  at the Conservation and Production Research Laboratory, Bushland, TX, September 1, 1999 : "improving nutrient and water use efficiency in crop production"  Improving nutrient and water use efficiency in crop production 
a joint report by Conservation & Production Research Laboratory, Agricultural Research Service, USDA 
 - Bushland, TX :  USDA,  1999? 
 - 43 p. (loose-leaf) 
 - AREC publication ;  99-31 .
 - United States.  Agricultural Research Service.  AREC publication ;  99-31 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops--Congresses<br/>Crops--Congresses