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2 我国长江流域冬油菜典型种植区域土壤养分含量

Table 2 Distribution of soil nutrients content in typical winter oilseed rape production regions in the Yangtze River Basin

区域 Region 指标 Parameters 有机质 Organic matter (g·kg-1) 全氮 Total N (g·kg-1) 速效磷 Available-P (mg·kg-1) 速效钾 Available-K (mg·kg-1) pH 长江上游 Upper Yangtze River Basin(UYRB) 范围 Range 4.1-71.7 0.31-3.54 2.4-181.3 16.0-504.0 4.31-8.19 均值 Mean 28.8a 1.59a 30.5a 140.1a 6.26a 变异系数 CV (%) 50.9 44.9 112.4 67.7 18.8 长江中游 Middle Yangtze River Basin (MYRB) 范围 Range 3.3-57.1 0.16-3.25 1.2-158.1 36.0-562.0 4.26-8.13 均值 Mean 25.0b 1.41b 25.3a 127.7a 5.90b 变异系数 CV (%) 40.7 43.5 98.9 57.6 19.3 长江下游 Lower Yangtze River Basin(LYRB) 范围 Range 7.3-49.2 0.49-3.51 1.8-108.9 42.0-373.5 4.38-8.26 均值 Mean 23.9b 1.45ab 28.4a 129.1a 6.09ab 变异系数 CV (%) 44.7 47.3 99.8 54.6 19.8 区域整体 Yangtze River Basin (YRB) 范围 Range 3.3-71.7 0.16-3.54 1.2-181.3 16.0-504.0 4.26-8.26 均值 Mean 25.9 1.47 27.5 131.1 6.04 变异系数 CV (%) 45.9 45.2 104.4 59.1 19.3