Bu - '80, U. S. DeDt. ' ' 
Plate XI. 
3^ 
0g ^j 
' A & 4&Mm M 
^ mmm m M 
i \MmttatKT 1 ^wfiSBr-p^ vi?* -v«Ss v- : >i 
.^^* T; 
I£ '■mi* 5 ??* ?X 
^Sgk* 
Fig. I. — Early Growth of Cotton with Ammonium Chlorid. Field 3, 
Season of 1921. 
At left, no fertilizer: yield 123 pounds of seed cotton ] er acre. At right, ammonium chlorid, 
1,00 i pounds 2-8-4 fertilizer per acre; yield 948 pounds of seed cotton. 
Fig. 2. — Growth of Cotton with Ammonium Phosphate. Field 3, 
Season of 1921. 
At left, no nitrogen. 1,000 pounds 0-10-4 fertilizer per acre; yield 300 pom ids of seed cotton. Center 
1 row), no fertilizer: yield 165 pounds of seed cotton per acre. At right, ammonium phosphate, 
. - . 4 fertilizer per acre; yield 608 pounds of seed cotton. 
