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7 施钾对纽荷尔脐橙园土壤理化性质的影响

Table 7 Effects of different potassium levels on soil physicochemical properties of orange orchard

处理 Treatment pH 容重 Bulk density (g?cm-3) 含水量 Water content (%) 有机质 Organic matter (g?kg-1) 碱解氮 Available N (mg?kg-1) 有效磷 Available P (mg?kg-1) 速效钾 Available K (mg?kg-1) K0 5.75±0.25a 1.87±0.03a 3.36±0.29a 20.03±4.32ab 129.08±15.28a 140.41±55.55ab 176.27±30.85c K1 5.58±0.33a 1.92±0.05a 3.26±0.21ab 21.99±2.79a 128.6±11.40a 96.11±39.36b 252.03±49.36bc K2 5.46±0.28a 1.88±0.07a 2.97±0.29bc 20.02±2.40ab 132.66±20.09a 141.49±60.3ab 423.71±133.09a K3 5.73±0.16a 1.85±0.04a 2.76±0.17cd 20.16±1.56ab 135.49±15.74a 163.56±47.25ab 385.40±151.37ab K4 5.93±0.46a 1.85±0.03a 2.93±0.35cd 19.59±5.87ab 125.82±27.88a 183.8±45.17a 527.98±79.66a K5 5.57±0.35a 1.82±0.05a 2.62±0.08d 14.88±3.74b 127.76±45.96a 125.28±71.84ab 485.20±151.56a