我国冬油菜典型种植区域土壤养分现状分析
任涛,郭丽璇,张丽梅,杨旭坤,廖世鹏,张洋洋,李小坤,丛日环,鲁剑巍

Soil Nutrient Status of Oilseed Rape Cultivated Soil in Typical Winter Oilseed Rape Production Regions in China
Tao REN,LiXuan GUO,LiMei ZHANG,XuKun YANG,ShiPeng LIAO,YangYang ZHANG,XiaoKun LI,RiHuan CONG,JianWei LU
表5 不同产量水平和种植制度下油菜土壤养分含量
Table 5 Soil nutrient content under different seed yields and cultivations in typical winter oilseed rape production regions in the Yangtze River Basin
土壤养分
Soil nutrient
种植制度 Cultivation P
P value
产量水平 Seed yield (kg·hm-2) P
P value
水旱油菜
Paddy-Oilseed rape
旱地油菜
Upland-Oilseed rape
<2000 2000-3000 >3000
有机质SOM (g·kg-1) 28.9±0.8 22.1±0.8 <0.001*** 28.6±1.2 25.9±0.9 25.4±2.0 0.159ns
全氮TN (g·kg-1) 1.63±0.04 1.27±0.04 <0.001*** 1.62±0.06a 1.43±0.05b 1.56±0.10ab 0.035*
速效磷Available P (mg·kg-1) 24.7±1.8 30.8±2.2 0.030* 30.7±3.0 29.0±2.8 28.5±5.6 0.919ns
速效钾Available K (mg·kg-1) 116.7±4.0 164.6±9.7 <0.001*** 126.3±7.3 b 138.4±7.0b 182.7±24.6a 0.015*
pH 5.91±0.07 6.23±0.09 0.005** 5.73±0.10c 6.13±0.08b 6.62±0.21a <0.001***
有效钙Available Ca (mg·kg-1) 2187.6±104.0 2761.9±138.7 0.001** 2022.3±158.9b 2628.7±115.2a 3177.6±308.9a <0.001***
有效镁Available Mg (mg·kg-1) 222.1±10.1 232.3±10.9 0.497ns 192.0±15.0b 241.9±9.8a 247.7±22.9a 0.011*
有效硫Available S (mg·kg-1) 25.2±1.1 19.0±1.1 <0.001*** 23.8±1.6 20.8±1.1 25.0±2.8 0.172ns
有效铁Available Fe (mg·kg-1) 273.3±12.5 128.3±9.5 <0.001*** 204.3±15.7 221.7±12.6 147.5±28.4 0.067ns
有效锰Available Mn (mg·kg-1) 91.5±5.1 86.1±5.2 0.467ns 91.3±7.2 83.7±4.4 68.2±11.0 0.205ns
有效铜Available Cu (mg·kg-1) 4.46±0.12 2.92±0.11 <0.001*** 3.67±0.16ab 3.99±0.14a 3.10±0.24b 0.021*
有效锌Available Zn (mg·kg-1) 4.25±0.16 3.74±0.19 0.043* 4.10±0.23 4.19±0.17 3.20±0.43 0.082ns
有效硼Available B (mg·kg-1) 0.46±0.02 0.43±0.03 0.613ns 0.41±0.03b 0.45±0.02b 0.62±0.07a 0.002**