COTTON-SPACING EXPERIMENTS 
23 
EXPERIMENT WITH PLANTINGS IN HILLS 
Hills with several stalks were compared with hills thinned to one 
plant. The average distance between hills was 16 to 18 inches, and the 
hills which were not thinned had an average of 244 plants. (Table 10.) 
TABLE 10.—Comparative yields in cotton-spacing experiment with plantings in 
thinned and unthinned hills, Greenville, Tex., 1923 
[The rows, which in each section were 100 feet long, were planted Apr. 18 and thinned June 9 (when the 
plants were 6 to 8inches high and bearing five or six true leaves). The first picking was Aug. 30 and 
the second one Oct. 36] 
Section 1 Section 2 Section 3 
| & | Yield ofseedcot- | & | Yieldofseedcot-| © | Yield of seed cot- 
Spacing | ton (pounds) = ton (pounds) a | ton (pounds) 
S 2 | bo | oy Bo e | | 3 | ey 00 
= < | | oO | = 80 — Ww 3 =  W i a 
42| 8 |e8\e8| B | 3 |e8|/8e| 3 | 8 | eel] 8s| 3 
B| g-|/88)S88)/ 6 |) g ER |Sh[ co | £ | Be) Sh) c 
| s 3 | ees | Om | & 3 | mio | 0.8 & | 5 |e | om oH 
1 7, Su) BENS 7. Q ie Ae Br) ares | 
1| 67| 32] 05| 37] 61| a1|.07] 38| 36/33] 07] 40 
Hills, one plant |}2| 74| 37| .8| 45| 68) 36] .7/ 43] 65) 37| .9) 46 
(block 1) beSsiteecOb. | S44) 82851 GO! S| ae 7e|) S58h Pe 720i |e 3 Gir nO keane 
Moleerenal Sepia 5 | 3.8 NaS) | 2 Bi bee rte ath eT [ 2a ieee asm ie 
Potato eee. | 287 | 13.6 | 2.2| 15.8] 257/126] 28|15.4| 272|146| 3.0| 17.6 
Tl pies | 3.5 | Se Sa ey ae ae ene Re eae 
Hills unthinned |} 2} 234| 3.6] .6| 4.2] 200| 33! [9] 42} 169) 40] .8| 48 
(block 2) Pelee valessl iho tea? fey S 8a) 145 1 Qvtal 25 be 8iG | iGt te 3S: |e alae 
Ayo 0 8 aS 202 13.9 [68 | ae | 208 44 ee eee 
igbal 2 ey Sess) 142 | -229...17.1 | an! 14-2) ore | 17Al 657 tee. 0 | 3.1 [pod 
1| 74 3.3 | cneiests-|Pe72 130 bos 5. aes iene Ese 6 | 0 ooueead 
Hills, one plant|J2; 69| 36| .5| 41| 55| 31] 5] 36] 64| 40) :8| 48 
(block 3) Pape 695) O04 eal S413 | BF.| a4 | 6 405 Rl 8 hee I 4G 
2d OS GESSGE Aa] Bak Gao ECU ae alas Hyg al GH Gl aba (ce fn vk Lee 
Pte ee a 280 | 13.7| 24/161] 268) 13.2] 23[155| 286/15.5| 27] 182 
jeder ea eines (4.2 |-ais [Pata | io | Se | ter seo) 45 
Hills unthinned |} 2) 179) 35| 10} 45] 227) 39) 11] 50) 188] 46| .7| 53 
(block 4) eo seet89 | 3. Oa tS 400) HZ | 2945S a ie leas ee aed 
A} d7G| 3.0 |. 1} 9442 | 1691, £03} .6 | 4640176) 44) 101 54 
Total_.-.-.-----=|-=--| 701 | 13.2] 3.7|169| 628|13.9| 27/166) 667/160] 3.3] 19.3 
| | 
Comparing yields in pounds of seed cotton from the two inside 
rows of each block, the hills with several stalks gave the highest 
yields in four out of nine cases. In two of the comparisons the yields 
were tied, and three show a difference in favor of the rows thinned 
to one plant in a hill. There is a mean difference of 0.144+0.089 
pounds in favor of the two inside rows of the blocks with several 
stalks to the hill. As this difference is only 1.6 times its probable 
error, it is not significant. 
