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| 湖北省油菜施硼效果及土壤有效硼临界值研究 | |
| 引用本文： | 邹娟,鲁剑巍,廖志文,巩细民,汪航,周远桂,周宏.湖北省油菜施硼效果及土壤有效硼临界值研究[J].中国农业科学,2008,41(3):752-759. |
| 作者姓名： | 邹娟 鲁剑巍 廖志文 巩细民 汪航 周远桂 周宏 |
| 作者单位： | 1. 华中农业大学资源与环境学院,武汉,430070 2. 湖北省土壤肥料工作站,武汉,430070 3. 湖北省浠水县土壤肥料工作站,湖北浠水,438200 4. 湖北省枝江市土壤肥料工作站,湖北枝江,443200 5. 湖北省鄂州市梁子湖区农林局,湖北鄂州,436000 |
| 基金项目： | 国家科技支撑计划 , 国际植物营养研究所(IPNI)合作项目 |
| 摘 要： | 【目的】从区域角度研究湖北省油菜主产区硼肥施用对油菜（Brassica napus L.）生长及产量的效果，确定目前生产条件下土壤有效硼临界值，为油菜科学施肥提供依据。【方法】2005～2006年在湖北省布置30个田间试验研究油菜施硼产量效应，结合土壤有效硼含量确定缺硼临界值。【结果】施硼对油菜的营养生长及产量构成因素均有促进作用，30个试验点施硼平均增产油菜籽428 kg?ha-1，平均增产率19.2%，70%的试验增产效果显著，增产量超过500 kg?ha-1的试验点占26.7%；土壤有效硼含量与施硼效果呈极显著负相关；按照不施硼产量相对于施硼处理的90%作为判断标准，土壤有效硼临界值比20年前第二次土壤普查时确立的临界值有所提高。【结论】湖北省油菜施用硼肥增产效果显著，现阶段油菜种植的土壤有效硼临界值为0.58 mg?kg-1，大约80%的地块在种植油菜时需要施硼。 |
| 关 键 词： | 湖北 油菜 硼肥 产量 土壤有效硼临界值 |
| 收稿时间： | 2007-06-15 |
| 修稿时间： | 2007-08-28 |
Study on Response of Rapeseed to Boron Application and Critical Level of Soil Available B in Hubei Province |
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| ZOU Juan,LU Jian-wei,LIAO Zhi-wen,GONG Xi-min,WANG Hang,ZHOU Yuan-gui,ZHOU Hong.Study on Response of Rapeseed to Boron Application and Critical Level of Soil Available B in Hubei Province[J].Scientia Agricultura Sinica,2008,41(3):752-759. | |
| Authors: | ZOU Juan LU Jian-wei LIAO Zhi-wen GONG Xi-min WANG Hang ZHOU Yuan-gui ZHOU Hong |
| Abstract: | 【Objective】 In order to provide a scientific basis for balanced fertilization, the effect of boron fertilization on growth and yield of rapeseed was studied and soil critical available B was determined based on field trials in main rapeseed product region of Hubei Province. 【Method】30 field trials of B fertilizer application to rapeseed were conducted in 2005/2006 growth season. The soil critical value of B deficiency was determined according to effect of B fertilizer on seed yield and soil available B content.【Result】The results showed that B application promoted the nutritive growth and yield components of rapeseed. The average increment with B fertilization was 428 kg/hm2 and the increasing rate was 28.0% for all 30 trials. Compared to control (no B treatment), about 70% trails received significant increase by B application, and the percentage of yield increment more than 500 kg/hm2 was as high as 26.7% for all trials. The results indicated that the yield increment by B application had significantly negative relationship with soil available B content. Based on the relative yield of CK/+B at 90 percent level, the soil critical available B was 0.58 mg/kg which was higher than that in the 1980s determined by the second nationwide general soil survey achievement.【Conclusion】The yield-increasing effect of B fertilizer on rapeseed is notable and the soil critical available B is 0.58 mg/kg in Hubei province at present time. According to the soil B deficiency criterion, it is necessary apply B fertilizer to about 80% rapeseed cultivated field in the main product region of Hubei Province. |
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