作物有效土壤营养面积研究
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* 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


STUDY ON CROP’S EFFECTIVE NUTRIENT SOIL AREAS
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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0335m2(579cm×579cm);甜菜有效营养面积为0358m2(534cm×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55cm的垄种植甜菜比67cm的常规垄增产198%。

    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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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. DOI:10.11766/trxb200203150511 Han Bing-jin, Chen Yuan, Meng Kai, Zhao Dian-chen. STUDY ON CROP’S EFFECTIVE NUTRIENT SOIL AREAS[J]. Acta Pedologica Sinica,2003,40(5):711-716.

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  • 收稿日期:2002-03-15
  • 最后修改日期:2003-03-26
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  • 在线发布日期: 2013-02-25
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