我国冬油菜典型种植区域土壤养分现状分析
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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
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Soil Nutrient Status of Oilseed Rape Cultivated Soil in Typical Winter Oilseed Rape Production Regions in China
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Tao REN,LiXuan GUO,LiMei ZHANG,XuKun YANG,ShiPeng LIAO,YangYang ZHANG,XiaoKun LI,RiHuan CONG,JianWei LU
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表5 不同产量水平和种植制度下油菜土壤养分含量
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Table 5 Soil nutrient content under different seed yields and cultivations in typical winter oilseed rape production regions in the Yangtze River Basin
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土壤养分 Soil nutrient | 种植制度 Cultivation | P值 P value | 产量水平 Seed yield (kg·hm-2) | P值 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** |
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