EVAPOTRANSPIRATION ETC., WITH IRRIGATED GRAIN SORGHUM 



27 



Table 19. — Effect of soil moisture and fertilizer treatments on water use efficiency (lb. /acre-inch of water 



use) by hybrid grain sorghum 

 Water Efficiency Data 



Year 



Fertilizer treatment 



Water use for moisture level of — 



Average 

 for all 





No. 



Nitrogen 



p 2 o, 



M, 



M 2 



M 3 



M 4 



M, 



M, 



moisture 

 levels 





fF, 



F 4 



If, 





 120 

 240 



30 

 30 

 30 



Lb. per 

 acre-inch 



Lb. per 

 acre-inch 



Lb. per 



acre-inch 



Lb. per 

 acre-inch 



Lb. per 



acre-inch 



Lb. per 

 acre-inch 



Lb. per 

 acre-inch 



1956 

















































Average 









60 



132 



253 



298 



225 



216 



197 













1957 



fF, 



F< 



If. 





 

 





 

 



261 

 284 

 292 



344 

 364 



378 



287 

 329 

 328 



255 

 329 

 355 



225 

 288 

 323 



305 

 317 

 341 



280 

 319 





336 



Average 









278 



362 



314 



313 



279 



321 



311 













1958 



fF, 



F 4 



If, 





 120 

 240 



30 

 30 

 30 



200 

 170 

 165 



269 



258 

 285 



173 



307 



286 



164 

 313 

 316 



144 

 295 

 286 



184 

 290 

 296 



189 

 272 





272 



Average _ _ _ 









178 



270 



255 



264 



241 



256 



244 













1959 



fF, 



F 4 



If, 





 120 

 240 



30 

 30 

 30 



242 



284 

 265 



205 



278 

 277 



195 

 302 

 307 



150 

 344 

 374 



144 

 320 

 337 



145 

 312 

 295 



180 

 307 

 309 



Average 









264 



255 



268 



289 



267 



251 



265 















fF* 







234 

 246 

 241 



273 

 300 

 313 



218 

 313 

 307 



190 

 329 

 348 



171 

 301 

 315 



211 

 306 

 311 



216 



Average 1957-59. . 



F< 







299 



If, 







306 













Overall average . 









195 



254 



272 



291 



253 



261 



254 















Analysis of 



Variance 











Component 



Degrees of 

 freedom 



: 



Vlean squares 



i 





1957 



1958 



1959 



Moisture (M). _ . _ 



5 

 15 



2 

 10 

 36 



11,419** 



1,523 

 20, 196** 



1,252 

 857 



13. 679** 



636 



55, 390** 



8, 395** 



674 



2,271 



Error (a)_ ___ _ . 



1, 104 



Fertilizer (F) 



144, 507** 



M X F 



6, 540** 



Error (b) _ _ _ 



942 









Total 



71 

















i **= Significant at the 1-percent level. 



g.5. GOVERNMENT PRINTING OFFICE : 1865 Q— 771-798 



