施钾水平对纽荷尔脐橙养分、产量和品质的影响

张绩,李俊杰,万连杰,杨江波,郑永强,吕强,谢让金,马岩岩,邓烈,易时来

Effects of Potassium Application Levels on Nutrient, Yield and Quality of Newhall Navel Orange

ZHANG Ji,LI JunJie,WAN LianJie,YANG JiangBo,ZHENG YongQiang,LÜ Qiang,XIE RangJin,MA YanYan,DENG Lie,YI ShiLai

表1 施钾对纽荷尔脐橙枝梢养分吸收的影响

Table 1 Effects of potassium application on nutrient uptake of Newhall navel orange shoots

枝梢类型 Shoot type 处理 Treatment 叶片 Leave (g/plant) 枝条 Twig (g/plant) N P2O5 K2O N P2O5 K2O 春梢 Spring shoot K0 12.69±2.43e 1.41±0.28d 8.19±1.50d 1.70±0.34c 0.40±0.08d 0.75±0.14c K1 16.47±1.68d 1.74±0.17c 12.75±1.07c 2.44±0.29b 0.68±0.05c 1.08±0.08b K2 26.32±1.30a 2.76±0.12a 18.18±0.66a 3.75±0.15a 1.00±0.02a 1.68±0.03a K3 24.32±1.40ab 2.29±0.13b 15.99±0.77b 3.82±0.10a 0.95±0.05a 1.62±0.23a K4 19.69±0.60c 2.02±0.05bc 15.06±0.12b 2.82±0.22b 0.79±0.09b 1.30±0.24b K5 22.50±0.23b 2.09±0.17b 15.81±1.60b 2.55±0.16b 0.68±0.04c 1.10±0.08b 秋梢 Autumn shoot K0 12.48±0.23c 2.33±0.04c 5.35±0.16c 1.33±0.04c 0.31±0.00d 0.57±0.01d K1 14.36±1.47bc 2.58±0.14bc 6.91±0.09b 1.87±0.06b 0.41±0.01c 0.76±0.02c K2 20.31±1.46a 3.86±0.23a 10.43±0.81a 2.37±0.12a 0.56±0.03a 1.14±0.06a K3 16.34±1.85b 2.86±0.28b 7.25±0.34b 2.19±0.16a 0.48±0.04b 0.87±0.10b K4 12.59±0.91c 2.32±0.11c 7.07±0.72b 1.81±0.19b 0.38±0.05c 0.78±0.06bc K5 9.64±1.12d 1.70±0.13d 4.71±0.71c 1.34±0.12c 0.28±0.03d 0.54±0.06d