| 上海郊区村级农田水稻推荐施肥初探 |
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| 引用本文： | 徐四新,姚政,金海洋,杨建军,罗国安.上海郊区村级农田水稻推荐施肥初探[J].上海农业学报,2007,23(1):92-95. |
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| 作者姓名： | 徐四新 姚政 金海洋 杨建军 罗国安 |
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| 作者单位： | 上海市农业科学院环境科学研究所,上海,201106 |
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| 基金项目： | 加拿大磷肥研究所资助项目;中国项目部资助项目 |
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| 摘 要： | 以上海市奉贤区四团镇南十家村为例,探讨了村级农田水稻精准土壤养分管理和平衡施肥技术。在对该村农田土壤N、P、K养分状况分析及养分空间分布特征分析基础上,利用GIS技术制作了农田土壤养分图,并对土壤养分进行了分级;结合多年的水稻OPT试验参数,根据水稻的目标产量和田块的养分水平,推荐水稻施肥量,合理平衡地使用肥料资源。结果表明,推荐施肥水稻的实际产量和预测产量误差小于10%,并略高于该村的水稻平均产量,推荐N肥平均用量较全村低32%,N、P、K养分更趋于合理。
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| 关 键 词： | 推荐施肥 水稻 精准养分管理 |
| 文章编号： | 1000-3924（2007）01-92-04 |
| 修稿时间： | 2006-03-062007-01-22 |
Preliminary study on recommended rate of fertilizer application in village-level rice field in Shanghai suburbs |
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| XU Si-xin,YAO Zheng,JIN Hai-yang,YANG Jian-jun,LUO Guo-an.Preliminary study on recommended rate of fertilizer application in village-level rice field in Shanghai suburbs[J].Acta Agriculturae Shanghai,2007,23(1):92-95. |
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| Authors: | XU Si-xin YAO Zheng JIN Hai-yang YANG Jian-jun LUO Guo-an |
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| Institution: | Environmental Science Research Institute, SAAS , Shanghai 201106, China |
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| Abstract: | The balanced application of fertilizer and precision management of soil nutrients were studied in the village-level rice field of Nanshijia Village.Base on the analyses of N,P and K nutrient conditions of the farmland soil and their spatial distribution characteristics,soil nutrient maps and corresponding nutrient grading maps for the village's farmland were made by using GIS technology.According to the parameters from OPT rice field experiments for years and target rice yields as well as nutrient levels of rice field,rates of fertilizer application were recommended in order to rationally use fertilizer resources.The investigation of farm households using the recommended rates of fertilizer application showed that the relative error was less than 10% between real and predicted rice yields,and by using the recommended rates the rice yield per unit area was slightly higher than an average level of the whole village's,but the recommended mean rate of N fertilizer was lower 32% than the mean one applied in the village. |
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| Keywords: | Recommended application of fertilizer Rice Precision management of nutrients |
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