| 作物有效土壤营养面积研究 |
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| 引用本文： | 韩秉进,陈渊,孟凯,赵殿臣.作物有效土壤营养面积研究[J].土壤学报,2003,40(5):711-716. |
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| 作者姓名： | 韩秉进 陈渊 孟凯 赵殿臣 |
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| 作者单位： | 中国科学院东北地理与农业生态研究所,哈尔滨,150040 |
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| 基金项目： | 国家"九五"科技攻关项目(96-004-02-06)、中国科学院创新工程项目(KZCXI-Y-CA-04和KZCXZ-SW-416)资助 |
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| 摘 要： | 提出作物有效营养面积新概念 ,并用回归理论对此进行试验研究。通过玉米、甜菜试验研究 ,建立植株个体营养面积与产量关系的模型 ,优化解析出玉米有效营养面积为 0 3 3 5m2 ( 5 7 9cm×5 7 9cm) ;甜菜有效营养面积为 0 3 5 8m2 ( 5 3 4cm× 67cm)。据此阐明目前生产上广泛采用 67～ 70cm的垄作 ,已超过玉米、甜菜的有效株行距 ,造成土壤等资源的浪费。采用 5 5cm的垄种植甜菜比 67cm的常规垄增产 1 9 8%。
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| 关 键 词： | 有效土壤营养面积 最佳土壤营养面积 个体 群体 产量 |
| 收稿时间： | 2002/3/15 0:00:00 |
| 修稿时间： | 2002年3月15日 |
STUDY ON CROP'S EFFECTIVE NUTRIENT SOIL AREAS |
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| Han Bing-jin,Chen Yuan,Meng Kai and Zhao Dian-chen.STUDY ON CROP'S EFFECTIVE NUTRIENT SOIL AREAS[J].Acta Pedologica Sinica,2003,40(5):711-716. |
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| Authors: | Han Bing-jin Chen Yuan Meng Kai and Zhao Dian-chen |
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| Affiliation: | Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150040, China;Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150040, China;Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150040, China;Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150040, China |
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| Abstract: | A new concept of Effective Nutrient Soil Areas (ENSA) was put forward and studied with the regression method. Through conducting experiments with corn and sugar beet, a model of the relationship between ENSA and yield of an individual crop was established. By using the model, an optimal ENSA of corn was worked out as 0.335 m2 (57.9 cm×57.9 cm) and that of sugar beet as 0.358 m2 (53.4 cm×67 cm). Therefore, for corn and sugar beet the ridge planting method of 67~70 cm in spacing, which is applied widely in the current production, is wasting soil resources, because the plant has a space larger than the ENSA of the crop. The results of the narrower space tests with the new theory show that their yields are about 19.8% higher than those of the normal ridge planting method. |
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| Keywords: | Effective nutrient soil area Optimal nutrient soil area Individual Colony Yield |
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