| 广东主要菜田土壤养分状况及施肥建议 |
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| 引用本文： | 郭巨先,陈琼贤,曹健,赫新洲,李强,李妙汉,高惠楠.广东主要菜田土壤养分状况及施肥建议[J].中国蔬菜,2010,1(8):41-45. |
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| 作者姓名： | 郭巨先 陈琼贤 曹健 赫新洲 李强 李妙汉 高惠楠 |
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| 作者单位： | 1.广东省农业科学院蔬菜研究所，广东广州 510640；;2.华南农业大学，广东广州 510642 |
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| 基金项目： | 广东省现代蔬菜产业技术体系建设专项资金; 国家科技支撑计划(2007BAD89B14); 广东省农业攻关项目(2008B021000045,2009B020202003); 广东省科技推广项目(2008B071103008) |
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| 摘 要： | 通过对广东主要菜田土壤中壤土进行采样、测试分析。结果表明:广东蔬菜基地土壤的pH值变幅为3.15～8.45,平均pH值为5.71,77.09%的菜田土壤偏酸。碱解氮含量变幅为9～554mg·kg-1,平均含量为96.59mg·kg-1,84.6%菜田氮含量居中等以下水平,需要补充氮肥。土壤速效磷含量变幅为1.03～1075mg·kg-1,平均含量为63.59mg·kg-1,磷含量处于中高水平。速效钾含量变幅为12.4～1275mg·kg-1,平均含量为138.67mg·kg-1,65.98%的菜田需要加强钾肥的施用。土壤交换钙含量变幅为0.012～28.210cmol.kg-1,平均含量为8.96cmol.kg-1,总体水平比较高,82.0%的土壤钙含量丰富,不需施钙。土壤交换镁含量变幅为0.23～8.58cmol.kg-1,平均含量为1.34cmol.kg-1,77.58%的菜田需要补充镁肥。说明广东蔬菜不同种植区土壤氮、磷、钾、钙、镁养分状况很不平衡,大部分菜田缺氮、钾、镁,而土壤钙含量水平高。
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| 关 键 词： | 广东 菜田土壤 养分 施肥 |
| 收稿时间： | 2009-12-10; |
Status of Soil Nutrients and Fertilization Suggestions Vegetable Fields in Guangdong |
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| GUO Ju-xian,CHEN Qiong-xian,CAO Jian,HE Xin-zhou,LI Qiang,LI Miao-han,GAO Hui-nan.Status of Soil Nutrients and Fertilization Suggestions Vegetable Fields in Guangdong[J].China Vegetables,2010,1(8):41-45. |
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| Authors: | GUO Ju-xian CHEN Qiong-xian CAO Jian HE Xin-zhou LI Qiang LI Miao-han GAO Hui-nan |
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| Institution: | 1.Institute of Vegetable，Guangdong Academy of Agricultural Sciences，Guangzhou 510640，Guangdong，China；;2.College of Horticulture，South China Agricultural University，Guangzhou 510642，Guangdong，China |
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| Abstract: | The soils from the vegetable fields in Guangdong were sampled and analyzed in this study．The results indicated that the pH values of soil from different vegetable bases varied from 3.15 to 8.45，the average value was 5.71，and 77.09 percent of the analyzed soil were weakly acid．The contents of alkali dispelled nitrogen in all analyzed soil varied from 9 to 554 mg·kg-1，averaged 96.59 mg·kg-1，and 84.6 percent of them were lower than the medium level，which indicated that these soil need supplement of nitrogen．The contents of available phosphorus in soil varied from 1.03 to 1 075 mg·kg-1 and averaged 63.59 mg·kg-1，which were at medium and high level．The contents of available potassium varied from 12.4 to 1 275 mg·kg-1 and averaged 138.67 mg·kg-1，and 65.98 percent of the vegetable fields required to apply potassium fertilizer．The contents of commutative calcium in soil varied from 0.012 to 28.210 cmol·kg-1 and averaged 8.96 cmol·kg-1．82.0 percent of the soil were abundant in calcium．There is no need to supply calcium．The contents of commutative magnesium varied from 0.23 to 8.58 cmol·kg-1 and averaged 1.34 cmol·kg-1．77.58 percent of the vegetable fields were deficient in magnesium，thus magnesium fertilizer should be applied．In conclusion，the soil nutrients，such as nitrogen，phosphorus，potassium，calcium，magnesium，in the different vegetable planting soils were imbalanced in Guangdong，and most vegetable fields were lack of nitrogen，potassium，and magnesium，but were rich in calcium contents． |
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| Keywords: | Guangdong Soil in vegetable field Nutrient Fertilization |
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