| 寒地稻田土壤养分状况 |
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| 引用本文： | 赵晓宇,罗盛国,刘元英,彭显龙.寒地稻田土壤养分状况[J].东北农业大学学报,2009,40(2). |
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| 作者姓名： | 赵晓宇 罗盛国 刘元英 彭显龙 |
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| 作者单位： | 东北农业大学资源与环境学院,哈尔滨,150030 |
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| 基金项目： | 农业部引进国际先进农业科学技术计划(948计划)，国家科技部农业科技成果转化资金资助项目 |
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| 摘 要： | 为了解黑龙江省寒地稻田土壤养分基本状况,对黑龙江省364个农户的稻田土壤进行了养分状况调查。结果显示,稻田土壤有机质为14.9～100 g·kg-1,平均值是41.8 g·kg-1;碱解氮含量变化为61.6～441 mg·kg-1,平均值是166 mg·kg-1;速效磷为5.0～74.0 mg.kg-1,平均值是24.5 mg·kg-1;速效钾为13.6～477 mg·kg-1,平均值是127 mg·kg-1;pH为4.50～7.78,平均值是5.84。与第二次土壤普查时相比,寒地稻田土壤有机质、碱解氮均呈现明显下降的趋势,并表现出酸化现象。
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| 关 键 词： | 寒地 稻田 土壤 养分 |
Nutrient status of paddy field in cold area of northeast China |
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| ZHAO Xiaoyu,LUO Shengguo,LIU Yuanying,PENG Xianlong.Nutrient status of paddy field in cold area of northeast China[J].Journal of Northeast Agricultural University,2009,40(2). |
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| Authors: | ZHAO Xiaoyu LUO Shengguo LIU Yuanying PENG Xianlong |
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| Institution: | ZHAO Xiaoyu,LUO Shengguo,LIU Yuanying,PENG Xianlong(Resources , Environmental Sciences College,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | A nutrient status investigation was conducted with 364 farmers’ paddy field from 2005 to 2006 in Heilongjiang Province.Results showed that organic matter content of soil varied from 14.9 to 100 g·kg-1,with the average of 41.8 g·kg-1;available N content of soil varied from 61.6 to 441 mg·kg-1,with the average of 166 mg·kg-1;available P content of soil varied from 5.0 to 74.0 mg·kg-1,with the average of 24.5 mg·kg-1;available K content of soil varied from 13.6 to 477 mg·kg-1,with the average of 127 mg·kg-1;pH values of soils varied from 4.50 to 7.78.Compared with the nutrient status of paddy field investigated in the second soil survey conducted in later 1980’s,organic matter and available N contents decreased significantly,and the acidification in paddy field was also observed. |
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| Keywords: | cold area paddy field soil nutrients |
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