Pj. Wiatrak et al., INFLUENCE OF FERTILIZATION METHODS ON STRIP-TILLED COTTON, Proceedings - Soil and Crop Science Society of Florida, 56, 1997, pp. 68-70
This research was conducted during 1995 and 1996 on a Dothan sandy loa
m (fine loamy, siliceous, thermic Plinthic Kandiudults) located at the
North Florida Res. and Educ. Center (NFREC), Quincy, FL. The objectiv
e was to evaluate the influence of strip tillage (no-till plus in-row
subsoiling) and fertilizer application methods on cotton, The followin
g treatments were applied before planting (3-9-18 Fertilizer was appli
ed at 560 kg ha(-1) on some treatments): 1) Strip till and fertilizer
over the row; 2) Strip Gin, fertilizer over the row; and strip till ag
ain incorporating the fertilizer in-row; 3) Strip till once; 4) Strip
till twice; 5) Broadcast fertilizer and ship till; and 6) Broadcast fe
rtilizer, and strip till twice. Plant stand, number, weight of boils,
and lint cotton yields were different for 1995 and 1996, A better plan
t stand was obtained, in 1996 than 1995 (84 300 and 70 100 plants ha(-
1), respectively); more boils were obtained in 1996 than 1995 (6.6 and
5.7 bolls plant(-1), respectively), and the weights of boils were sig
nificantly higher in 1995 than in 1996 (5.8 and 5.3 g.boll(-1), respec
tively). Lint cotton yields were higher in 1996 than in 1995 (1083.2 a
nd 848.2 kg ha(-1), respectively). Fertilization method did not influe
nce plant stand, number and weight of bells, or lint yields and, even
though strip tilling twice prepared a better seedbed, it did not influ
ence plant stand, number and weight of bells, or lint yields in either
1995 or 1996 at the 5% probability level.