20 



CONSERVATION RESEARCH REPORT 5, U.S. DEPT. OF AGRICULTURE 



Table 12. — Effect of soil moisture levels and fertilizer (treatments F 2 , F 4 , and F$) on total evapotranspiration 



by hybrid grain sorghum in 1956-59 



Evapotranspiration Data 





Fertilizer treatment 



Evapotranspiration at moisture level of — 



Average 

 for all 



Year 



No. 



Nitro- 

 gen 



p 2 o 6 



M, 



M 3 



M, 



M 4 



M 6 



M, 



moisture 

 levels 





fF 2 



F 4 



IF S 





 120 

 240 



30 

 30 

 30 



Inches 



Inches 



Inches 



Inches 



Inches 



Inches 



Inches 



1956 .-- . 

















































Average 









12.3 



15. 7 



18.8 



21.9 



23.7 



18.4 



18. 5 













1957 . - -- - _ 



[F 2 



F 4 



lF 5 





 

 





 

 



12. 8 



13. 1 

 13.0 



17. 1 

 16.0 

 16.0 



20.0 

 20.6 

 20. 2 



20.4 

 20.5 

 21.2 



23. 7 

 23.3 

 23.6 



20.9 



20. 6 



21. 



19.2 

 19. 





19.2 



Average 









13. 



16.3 



20.3 



20.7 



23. 5 



20. 8 



19. 1 













1958 . .-- --- .-- 



fF_ 



F 4 



If 6 





 120 

 240 



30 

 30 

 30 



14. 8 

 15.4 

 14.8 



19. 5 

 19. 7 

 18.4 



20.6 

 20.3 

 21.8 



21.0 

 22.3 

 22.9 



23.4 

 23. 1 

 24.7 



20.8 

 21.8 

 22. 5 



20.0 

 20. 4 





20.9 



Average _ _ 









15. 



19.2 



20.9 



22. 1 



23.7 



21.7 



20. 4 













1959 



(F 2 



F 4 



IFj 







120 

 240 



30 

 30 

 30 



11. 6 



12. 

 12.4 



16. 2 

 16.2 

 16.6 



16. 5 

 19. 1 

 18.6 



19.8 

 20. 8 

 20.9 



20. 5 

 22. 2 

 22. 8 



17.4 

 19.0 

 20.3 



17.0 

 18.2 





18.6 



Average 









12. 



16.3 



18. 1 



20. 5 



21. 8 



18.9 



17.9 















fF. 



F 4 

 IF 6 







13. 1 

 13.5 

 13.4 



17.6 

 17.3 

 17.0 



19.0 

 20. 

 20.2 



20.4 

 21. 2 

 21.7 



22. 5 

 22.9 



23. 7 



19.7 

 20. 5 

 21.3 



18. 7 



Average of 1957-59 







19.2 







19. 6 











Overall average _ 









13.3 



17.3 



19.7 



21. 1 



23. 



20. 5 



19.2 













1956-59 average of F 4 



and F 6 _ _ _ 









13.2 



16.8 



19.8 



21.6 



23.4 



20.2 



19.2 

















Analysis of Variance 











Component 





Degrees of 

 freedom 





Mean squares 



i 





1957 



1958 



1959 



Moisture (M) ___ _. _ _ _____ 



5 

 15 



2 

 10 

 36 

 71 



172. 98** 



1.05 



.22 



.61 



.47 



110. 99** 



1. 14 



4. 67** 



2. 08** 

 .44 



144. 07** 



Error (a)___ _______ 



. 59 



Fertilizer (F)__ _____ _____ 



10. 84** 



M X F 



1.04* 



Error _ _ ________ 



.43 



Total ___ 













1 *— 



Significant at the 5-percent level; ** = significant at the 1-percent level. 



