440 
Journal of Agricultural Research 
Vol. XXIII, No. 6 
the second week after planting 0.76 of an inch of rain fell, which thor¬ 
oughly moistened the ground. The amount of injury produced by the 
different quantities of borax corresponded very closely to the results in 
series B. 
The planting of series D was made when the soil was very dry, and 
the seed did not germinate immediately. A good rain occurred about 
one week later, and about 0.76 of an inch fell; the following week there 
was 0.98 of an inch precipitation, and the third week 1.5 inches. After 
the germination of the seed there was more rainfall, and the soil was con¬ 
sequently more moist than when the cotton was young in the plots 
planted earlier. The injuries attributable to the borax were scarcely as 
extensive in this series, as on the plots planted earlier, but they were in 
the same order. In series D 5 pounds of borax reduced the green weight 
1.6 per cent, 10 pounds 6.4 per cent, and 20 pounds 38.1 per cent. In 
series C the reduction was, respectively, 9.3, 12,8, and 50 per cent; in 
series B, 19.2, 25, and 39.4 per cent; and in A, 7.6, 9.4, and 52.7 per cent. 
In series E the cotton was planted when the soil was moist and in 
good tilth. Several days after planting 0.98 of an inch of rain fell, which 
was followed by a period of one week without rain. This period was fol¬ 
lowed by several days of rain, and, as seen in Table IV, during the week 
beginning July 18 1.5 inches of rain fell. The toxic effects were not as 
marked as on the plots planted earlier. There was a slight stimulation 
where 5 pounds of borax per acre were used, 10 pounds reduced the 
growth 2.7 per cent, and 20 pounds 31 per cent. 
Series F was planted very late, and growth continued only about two 
months. The data are given in the table, however, and it will be seen 
that the effects of the borax were of about the same magnitude as in 
series E. 
In Plate 3 the effect of borax is shown on the cotton in series A, planted 
June 12. The views shown at A, B, and C were photographed on July 
29, August 8, and September 18, respectively, the last date being shortly 
before the plants were cut and weighed. Plate 3, A, was photographed 
before the cotton was thinned; the unbroken stand and uneven appear¬ 
ance of the row receiving 20 pounds of borax per acre is shown. 
In Plate 4, A and B, are shown the effects of borax in series D. View A 
of Plate 4 was photographed on August 23 and B on September 18. In 
Plate 4C, the cotton in series F is shown. 
PLANTINGS ON COI 3 ERT SII/T I.OAM 
Other experiments with cotton were begun at Muscle Shoals, Ala., simi¬ 
lar to those at Arlington Farm, Va., and to those in New Jersey with 
potatoes and com. These included immediate planting of seed after 
applying fertilizer, delayed planting, and broadcasting. The quantities 
of borax used varied from 1 to 400 pounds per acre. Two rows 70 feet 
long were used for each treatment on the Colbert silt loam, which is a 
heavier soil than the Clarkville loam. The fertilizers were applied on 
May 10. The rainfall for the month prior to starting the experiments, 
and for a like period afterwards, was exceedingly heavy. The soil 
became very compact from the excessive rains, resulting in a very poor 
stand over the entire area. The experiments were continued, however, 
in order to observe the effects of the borax; but a harvest was not made, 
as the broken stand appeared to make it useless. 
