COTTON-SPACING EXPERIMENTS 29 
TABLE 13.—Comparative yields in cotton-spacing experiment with chopped and 
unthinned rows, Campbell, Tex., 1924 
{The rows, which were 75 feet long, were planted May 5 and chopped June 12 (when the plants were from 
4 to 6inches high and were bearing about four to six true leaves). The first picking was Sept. 10 and 
the second one Oct. 16] 
Section 1 Section 2 — Section 3 
aes 2 er 
= | Yieldofseed | = | Yieldofseed = | _ Yield of seed 
Spacing a cotton (pounds) a cotton (pounds) a | cotton (pounds) 
S 2 | no | obo = to fe : | on Bean 
BS ee Vea eh ee erate me eet | ice | tes 
Sle) Seri Stee | = B02 Sg sp SEP SES eS 
e| 5 jze | 83 iS 5 |e3s/| $316 S |mS| 8S] 6 
= i | a) Re oS el a Da! & Fn || Rm Oa | 
ame eee Ss | er aa caus 
1| 102] 2.5 | | $3) 17) 14 28) 42 938) 15 19) 34 
912793] -210 | fo) aot Pos Patras tei e7b aa le pla 
Chores (lek 1) 1) 3 v6] 138) 16, 28| e4| 12| 22/34) z| 17/19] 36 
7 ir £9 ar ig gas p= yy 9 ak Ng Ul og StS 2 
Poteet pin 345.| 7.3] 3.8| 111] 321| 5.4| 85|139/ 309| 61| 68] 129 
1) 280/25) 13/38 173° 1.6 Di0)| sep Weide |G |. ete ag 
‘. Fi is7 | 27 1 9 |, 361 172] Le a ee ee yeh eae 
Unthinned (block 2)---) 3) 349! 16) 1.4, 3.0) 175 1.6. 1.3] 29 193! 23) 14] 3.7 
4| 1743.3] LI} 447 155) 16] U3) 29 (170) 21) LB) 3.4 
Tatas. eek ete 731 |10.1| 4.7) 148] 675| 63/ 60/123! 646| 7.7) 64) 14.1 
Te HOD er. 2.5991 880 98 fotos} cae | on7 Wile |. 4c9)}) sae 
2 Pee |eees | 88] 3.8 20: leeds Qo} -gt 3h 25 GS [29 Balch SAR epee 
Chopped (block 3)----) 3 93} 3:1) [8/ 3.9) 94 1.7) 12) 29 64 18 > 12! 30 
ai tora) <.7| 48] 80) 20; 9} 29) eo! .9| 14] ¢ a3 
Wobabs = ences | ge9]az9| 34/153] 342| 62] 48/110] 274| 67| 56) 123 
[2 Did aai| 5 7 | Ha. g 183 16) 13) 29 18) 16) 18) 34 
i é W2| 281-41] .8| 49] 199| 1.6! 1.1| 27! 30| 17] 20] 37 
Unthinned (block 4)---) 3 | 3¢1| 3.0) 15! 45) 161| 1.6, 1.2/ 28) 168) 1.7| 1.7] 3.4 
4] 219] 40] 1.6] 5.6; 195) 22] 171 3.9/1 216] 26] 20| 46 
Potala) ee 932 15.3} 46] 19.9! 7388! 7.0} 5.3/123] 808; 7.6] 7.5] 15.1 
Ee 28 (oasT} 356 4 18) .8| 26) 58) 12 15" a? 
ee NS 96 43.6: (°1.3.1. 4.9 ar es a ates eT i aie asa |e 
Chopped (block 5)----) 3! 74] 3.2| 19| 41) 74| 17) .9| 26 48/ 1.3) 16] 29 
ee uGass ol 4s} ot) ieyr2t' 341] as) Lelia’ 29 
Pitals jt} se5:[ 43:5] 3.9] 17.4| 320) 7:8) 421120| 2181 6 ae 11.9 
1| igs | 5] 8 | a3 | 181923 | 21|-44 | ae | 24] 22) 26 
=~ pot q51 | 3.6|-1.3) 49} 192/281 1.7| 45] 172| 23] 171 «£0 
Pate recee Sag Siz-| 4.) .8)- 5-6 | Ji 4-1-6 | 4.5 | 3.1) 121) 84 19 | 3.7 
4| 188] 51/14] 65| 12)| 28} 18] 46] 171] 23) 221 45 
neat ot | 642/180] 43/223) 605| 95| 71/166} 638] 88| 80] 168 
iol 62 data et |e 4 | 62" 24 | 4-5 | 329°] 59 1. | “L6) 3.0 
ag Gr aly Wot 04.0 259) 2 OF 5 [eas | 6s | LT 16 [33 
Chopped (block 7)----1) 3 | 9 | 3.1 | oleast 2 eees | a5.) 04-156 by 17k ees 
each Ore sain le 2415.34) 67 20 | a4 | 4 48 Pe ee ST 
OT 
Z| ia lac |.._-| 281 | 13.9] 41] 18.0| 261; 89} 5.9] 148) 228 6.2 | 6.7 | 12.9 
| : 
SPACING EXPERIMENTS IN 1925 
The summer of 1925 was probably the driest during the 5-year 
period covered by this report. In addition to the dry summer 
weather there was undoubtedly less stored moisture in the soil than 
during any of the years from 1921 to 1925, inclusive. 
The five spacing experiments made in 1925 include the following 
comparisons: 
Comparison of one plant every 12 inches with unthinned rows. 
Comparison of one plant every 12 inches with two plants every 12 inches. 
Comparison of one plant every 12 inches with three plants in hills 12 inches apart. 
Comparison of one plant every 12 inches with rows blocked out with an 8-inch hoe. 
Comparison of blocked-out rows with unthinned rows. 
