EVAPOTRANSPIRATION ETC., WITH IRRIGATED GRAENT SORGHUM 



9 



Table 4. — Effect of soil moisture and fertilizer treatments on the yield of hybrid grain sorghum for 1956-59, 



Bushland, Tex. 

 Yield Data 





Fertilizer treatment 



Yields at moisture level of — 



Average 

 for all 



Year 



No. 



Nitro- 

 gen 



P 2 5 



M, 



M 2 



M 3 



M 4 



M 6 



M 6 



moisture 

 levels 



1956 - -- _ 



Pi 



F 2 

 F 3 



\v* 



F 5 



If, 



Lb. /acre 

 240 

 

 60 

 120 

 240 

 240 



Lb. /acre 

 

 30 

 30 

 30 

 30 

 60 



Lb. /acre 

 633 

 780 

 645 

 703 

 817 

 829 



Lb. /acre 

 2, 161 

 1,924 

 2, 214 

 2,026 

 2,030 

 2, 108 



Lb. /acre 

 4,992 

 4,865 

 5, 176 

 4,898 

 4, 158 

 4,477 



Lb. /acre 

 6,704 

 6,462 

 6,213 

 6,888 

 6,450 

 6,571 



Lb. /acre 

 5,433 

 5, 241 

 5,870 

 5,286 

 5,266 

 4,947 



Lb. /acre 

 4,379 

 3,590 

 3,909 

 4, 134 

 3,942 

 3,958 



Lb. /acre 

 4,050 

 3,810 

 4, 004 





3,989 

 3,777 

 3,815 



Average 









735 



2,077 



4,761 



6,548 



5,340 



3,985 



3, 908 













1957 



F 2 

 F 3 



F< 

 F 5 



If, 





 

 

 

 

 









 

 

 

 



3,436 

 3,319 

 3, 541 

 3, 697 

 3,770 

 3, 567 



6, 193 

 5,860 

 5,755 

 5,762 

 6,030 

 6,056 



6,735 



5,762 

 6, 167 

 6,755 

 6, 605 

 7,023 



7,643 



5, 220 

 6,539 



6, 755 

 7,499 

 7,434 



7, 780 

 5,330 

 5,808 

 6,716 

 7,637 

 7,904 



6,964 

 6,363 



6, 213 

 6,526 



7, 160 

 6,983 



6,459 

 5,309 

 5,670 

 6,035 

 6,450 

 6,494 



Average 









3, 555 



5,942 



6,508 



6,848 



6,862 



6,701 



6, 069 













1958 ..- - - 



(Fi 



F 2 



* F 4 

 F 5 



If, 



240 

 

 60 

 120 

 240 

 240 





 30 

 30 

 30 

 30 

 60 



2,058 

 2,979 

 2,718 

 2,626 

 2,430 

 2, 116 



4,886 

 5, 226 

 5,500 

 5,089 

 5,258 

 5,526 



6, 128 

 3,554 

 5,925 

 6, 212 

 6, 219 

 6,578 



7,258 

 3,442 

 6,448 

 6,964 

 7, 232 

 7,492 



6,924 

 3,325 

 5,938 

 6, 781 

 7,075 

 7,029 



6,657 

 3,848 

 6,350 

 6,317 

 6,650 

 6,748 



5,652 

 3, 729 

 5,480 





5,665 

 5,811 

 5,915 



Average - 









2,488 



5,248 



5,769 



6,473 



6, 179 



6,095 



5,375 













1959 . 



fF, 



F 2 



{ F 4 

 F 5 



If, 



240 

 

 60 

 120 

 240 

 240 





 30 

 30 

 30 

 30 

 60 



3,412 



2, 803 

 3,300 

 3,392 

 3,281 



3, 634 



4, 176 

 3,320 

 4,274 

 4,496 

 4,588 

 4,921 



5,254 

 3,215 

 5,058 



5,777 

 5,718 

 5,535 



7,215 

 2,980 

 5,882 

 7, 143 

 7,822 

 6,934 



7,770 

 2,947 

 5,692 

 7, 117 

 7,698 

 7,555 



6,019 

 2,521 

 6, 156 

 5,934 

 5,967 

 6,810 



5,641 

 2,964 

 5, 060 





5,643 

 5,846 

 5,898 



Average 









3,304 



4,296 



5,093 



6,329 



6,463 



5,568 



5, 175 















fF, 

 F 2 



Jf 3 



F 4 

 F 6 



If, 







2,385 

 2,470 

 2,551 

 2,604 

 2,574 

 2,536 



4,354 

 4, 082 

 4,436 

 4,343 

 4,476 

 4, 653 



5,777 

 4,349 

 5,582 

 5,910 

 5,675 

 5,903 



7,205 

 4,526 

 6,270 

 6,938 

 7,251 

 7, 108 



6,977 

 4,211 



5,827 

 6,475 

 6,919 

 6, 894 



6,005 

 4,080 

 5,657 

 5,728 

 5,930 

 6, 125 



5,450 









3, 953 



Average 







5, 054 









5,333 









5,471 









5, 530 











Overall average 









2,520 



4,391 



5,533 



6,550 



6,211 



5,587 



5, 132 













Analysis of Variance 



Component 



Moisture (M) 

 Error (a)_. 



Fertilizer (F) . 



M X F 



Error (b)__ 

 Total. 



Degrees of 

 freedom 



5 

 15 



5 



25 



90 



143 



i ** 



= Significant at the 1-percent level. 



Mean squares 



1956 



111,257,911** 

 683, 301 

 342, 250 

 229, 627 

 306, 509 



1957 



39, 197, 156** 



504, 222 



5, 836, 120** 



794,681** 



258, 694 



1958 



52, 403, 100** 

 258, 600 



17, 854, 600** 



2, 173, 800** 



246, 591 



1959 



35, 658, 200** 



326, 300 



30, 267, 400** 



2, 168, 700** 



195, 171 



