山西石灰性褐土的磷、锌关系及其对玉米幼苗生长的影响
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STUDIES ON INTERACTION BETWEEN P AND Zn AND THEIR INFLUENCE ON GROWTH OF CORN SEEDLINGS ON CALCAREOUS SOIL
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    摘要:

    为定量探讨石灰性土壤中的磷、锌关系及其对玉米幼苗生长的影响,运用数学模型,在土壤pH为8.12、有效磷为2.56ppm、有效锌为1.08ppm的山西石灰性褐土上进行盆栽试验。研究结果表明:(1)土壤磷、锌营养供应协调时,玉米幼苗对磷、锌的吸收具有显著的相互促进作用,否则,磷、锌相互拮抗。(2)施磷能促进土壤锌的解吸,增加土壤有效锌的含量。(3)土壤中的磷酸锌沉淀并不是引起作物缺磷或缺锌的主要原因,而可能是由于磷、锌营养平衡失调而引起的发生在根内的一种生理性障碍。

    Abstract:

    Potexperiment was carried out for studying interaction between P and Zn of soil and their nutrition of corn seedlings,grown on Calcareous Cinnamon Soil of Shanxi,which was loamy in texture with a pH of 8.12,available P of 2.56 ppm and available Zn of 1.08 ppm.At the same time,mathematic modelling was used in order to quantitively study the interaction of P and Zn in Calcareous Soil and their mutual effects on corn growth.The main results obtained are summarized as follows:(1) When the supplies of available P and Zn in soil were harmony,the uptake of F and Zn by corn seedlings were accelerated each other and the interaction between P and Zn was significant and vice versa.(2) The P application could accelerat the desorption of zinc and increased the content of available soil Zn.(3) The precipitation of Zn3(PO1)3 in soil wasn't the main cause of Zn and P deficiences.The mutual restraint of P and Zn in corn nutrition was a kind of physiological obstruction within roots.which was caused by imblance of nutrition.

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王海啸,吴俊兰,张铁金,吴启祥,陈阳,边俊生,陕方.山西石灰性褐土的磷、锌关系及其对玉米幼苗生长的影响[J].土壤学报,1990,27(3):241-249. Wang Haixiao, Wu Junlan, Zhang Tiejin, Wu Qixiang, Chen Yang, Bian Junsheng, Shan Fang. STUDIES ON INTERACTION BETWEEN P AND Zn AND THEIR INFLUENCE ON GROWTH OF CORN SEEDLINGS ON CALCAREOUS SOIL[J]. Acta Pedologica Sinica,1990,27(3):241-249.

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  • 在线发布日期: 2013-02-25
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