滴施缩节胺与氮肥对棉花生长发育及产量的影响

张特, 王蜜蜂, 赵强

Effects of DPC and nitrogen fertilizer through drip irrigation on growth and yield in cotton

ZHANG Te, WANG Mi-Feng, ZHAO Qiang

表3 不同处理对棉花主茎农艺性状的影响

Table 3 Effects of nitrogen and DPC treatments on main stem agronomic characters in cotton

年份 Year 处理 Treatment 株高 Plant height (cm) 茎粗 Stem diameter (mm) 主茎叶片数 No. of stem leaf 果枝台数 No. of fruit branch 果枝始节高 Height of the first branch (cm) 2018 D1 N1 68.10±6.13 a 10.35±1.19 ab 15.50±0.97 b 10.4±1.07 a 22.65±2.49 a N2 76.70±4.39 cd 10.90±0.79 bc 15.60±1.26 b 11.7±0.94 b 24.10±5.02 abc N3 80.10±3.81 d 11.48±1.09 c 16.90±1.12 c 11.9±1.28 b 22.84±2.44 ab D2 N1 69.70±8.15 ab 9.45±1.17 a 15.40±1.50 b 10.5±1.26 a 25.95±2.62 c N2 71.10±8.58 abc 10.14±1.17 ab 14.00±0.94 a 11.5±1.08 b 25.75±3.36 abc N3 75.80±7.16 bcd 10.85±0.22 bc 14.70±1.15 ab 11.6±0.84 b 26.95±2.16 c D3 N1 78.70±4.24 d 10.35±0.77 ab 15.50±0.84 b 12.4±1.17 b 23.23±4.04 abc N2 78.80±4.26 d 10.81±0.69 bc 14.50±0.97 ab 11.6±0.69 b 25.14±3.23 b N3 72.00±7.90 abc 11.05±1.02 bc 15.50±1.90 b 11.6±1.26 b 26.52±3.87 c D1 74.97±6.97 ab 10.70±0.89 a 15.16±1.36 a 11.33±1.26 a 22.51±3.59 a D2 72.20±8.15 a 10.56±1.21 a 14.70±1.31 a 11.20±1.15 a 25.55±2.99 b D3 76.50±6.41 b 11.43±1.20 b 16.00±1.25 b 12.10±1.21 b 25.26±3.72 b N1 72.16±7.77 a 10.41±1.24 a 15.93±1.63 b 11.33±1.66 a 24.26±3.74 a N2 75.53±6.74 a 10.97±0.86 ab 14.70±1.23 a 11.60±0.89 a 24.31±3.86 a N3 75.96±7.51 a 11.31±1.20 b 15.23±1.04 a 11.70±1.11 a 24.75±3.53 a D 3.546* 6.267** 8.653** 6.198** 7.422** N 3.231* 5.930** 7.633** 0.944 0.187 D×N 6.306** 2.325 0.950 7.336** 2.510* 2017 D1 N1 65.90±6.81 a 8.13±0.64 a 15.50±1.90 a 11.20±1.87 a 21.70±2.55 b N2 66.90±5.72 a 9.21±0.60 bcd 14.50±0.97 a 10.00±1.24 a 24.10±5.02 ab N3 67.00±6.59 a 8.48±0.86 ab 15.62±0.74 a 11.12±0.64 a 21.50±2.67 ab D2 N1 64.65±7.51 a 8.69±1.02 abc 15.40±1.50 a 11.10±1.37 a 25.95±2.16 ab N2 67.95±5.89 a 9.31±0.61 bcd 14.00±0.94 a 9.40±1.17 a 23.75±3.36 a N3 69.15±6.28 ab 9.53±0.97 cd 14.70±1.15 a 10.60±1.26 a 26.95±2.62 ab D3 N1 79.45±6.48 c 9.69±1.11 d 15.30±3.45 a 10.80±3.48 a 24.20±4.04 ab N2 66.38±5.79 a 9.39±0.62 cd 15.67±1.32 a 11.22±1.09 a 24.72±3.19 b N3 69.50±8.78 ab 9.57±0.99 cd 15.50±0.97 a 11.40±1.26 a 26.50±3.87 b D1 66.58±6.15 a 8.62±0.82 a 15.17±1.38 a 10.75±1.45 a 22.50±3.72 a D2 70.58±7.02 b 9.18±0.93 b 14.70±1.31 a 10.36±1.42 a 25.55±2.99 b D3 71.95±8.94 b 9.56±0.91 b 15.48±2.16 a 11.13±2.19 a 25.15±3.74 b N1 73.35±8.79 b 8.84±1.12 a 15.40±2.35 a 11.03±2.34 a 23.95±3.41 a N2 67.10±5.63 a 9.30±0.59 a 14.68±1.25 a 10.17±1.36 a 24.17±3.84 a N3 68.66±7.16 a 8.66±7.16 a 15.25±1.04 a 11.03±1.13 a 25.23±3.86 a D 4.542* 8.661** 1.705 1.527 7.007** N 7.003** 2.425 1.368 2.293 0.717 D×N 2.946* 2.198 0.880 1.035 2.189