陕西省锰肥应用分布的研究
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INVESTIGATION ON THE DISTRIBUTION OF SOILS DEFICIENT IN Mn AND APPLICATION OF Mn FERTILIZER IN SHAANXI
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    摘要:

    本文研究了土壤有效锰(DTPA-Mn)含量与作物产量之间的关系.试验结果表明,土壤有效锰含量和作物产量密切相关.有效锰含量较低,施锰肥就有较好反应.因而,根据锰肥对作物产量的反应,初步将土壤中有效锰分为:最低;较低;低;中等;丰富五级.在全省范围內,在陕北和关中大面积土壤需施锰肥,而陕南土壤有效锰较丰富,需施锰肥面积小.土壤缺锰面积与钙质土壤的分布是一致的.此外,土壤有效锰含量和土壤pH值、碳酸钙含量呈负相关.在钙质土中,土壤有效锰易被吸附,所以含量较低.

    Abstract:

    Owing to difference in relief and climate between the north and south of the province,the distribution of the soils in Shannxi are different most of the soils are neutral and slightly alkaline in reaction but a part of slightly acid soils are distributed in south Shannxi.Previous experiments conducted in 1961-1980 by the authors had proved the effect of Mn fertilizezr on most of the soils in this province.The present paper deals with the gradation of available Mn in soil,reasonable application of Mn fertilizer in the soils of various districts of the province,the distribution regularity of Mn in soils and the conditions of applying Mn fertilizer.

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王学贵,朱克庄.陕西省锰肥应用分布的研究[J].土壤学报,1990,27(2):202-206. Wang Xuegui, Zhu Kezhuang. INVESTIGATION ON THE DISTRIBUTION OF SOILS DEFICIENT IN Mn AND APPLICATION OF Mn FERTILIZER IN SHAANXI[J]. Acta Pedologica Sinica,1990,27(2):202-206.

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  • 在线发布日期: 2013-02-25
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