1909
Management options examined included improvement to on - farm water use efficiency , the suppression of evaporation from open water storages , increasing the depth of those storages , decreasing their number , and improved tailwater return from irrigated land .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None