Table 2 Soil water stored in different soil layers at the initial flowering stage, boll formation stage, and boll opening stage of cotton in 2014 and 2015 (mm)
From: Soil replacement combined with subsoiling improves cotton yields
Year | Treatment | Initial flowering stage | Boll formation stage | Boll opening stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0~20 cm | 20~40 cm | 40~60 cm | 60~80 cm | 0~20 cm | 20~40 cm | 40~60 cm | 60~80 cm | 0~20 cm | 20~40 cm | 40~60 cm | 60~80 cm | ||
2014 | CK | 23.7 b | 29.5 b | 38.3 a | 37.2 a | 40.2 b | 40.9 b | 45.8 a | 39.5 a | 27.9 b | 35.3 b | 34.6 a | 37.2b |
T1 | 24.7 b | 26.9 b | 40.0 a | 36.6 a | 42.1 a | 41.2 b | 45.5 a | 38.1 ab | 27.6 b | 33.3 b | 35.7 a | 39.5 a | |
T2 | 28.9 a | 31.2 a | 37.8 a | 37.2 a | 42.6 a | 43.2 a | 43.6 b | 38.9 ab | 31.7 a | 37.8 a | 34.8 a | 39.9 a | |
T3 | 30.2 a | 31.9 a | 37.8 a | 36.7 a | 43.5 a | 44.0 a | 42.7 b | 37.5 b | 32.0 a | 38.4 a | 34.5 a | 37.0 b | |
2015 | CK | 23.2 c | 24.6 c | 35.2 b | 46.5 b | 68.2 a | 68.0 a | 62.5 b | 62.6 b | 26.5 b | 28.9 c | 38.0 c | 58.7 b |
T1 | 27.7 b | 27.0 b | 38.4 a | 50.1 a | 65.1 b | 69.1 a | 64.5 ab | 65.5 ab | 33.0 a | 36.4 ab | 48.1 a | 58.0 b | |
T2 | 26.5 b | 25.1 bc | 39.1 a | 50.2 a | 63.2 b | 66.0 b | 66.3 a | 66.7a | 34.7 a | 34.8 b | 44.4 b | 61.2 a | |
T3 | 32.5 a | 30.0 a | 37.8 a | 49.1 a | 66.1 ab | 65.3 b | 66.7 a | 67.5 a | 35.3 a | 38.1 a | 45.2 b | 62.2 a | |