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红壤施用石灰石粉对芝麻产量的影响
引用本文:孟赐福,周梅芳. 红壤施用石灰石粉对芝麻产量的影响[J]. 中国油料作物学报, 1991, 0(4)
作者姓名:孟赐福  周梅芳
作者单位:浙江省农业科学院土肥所(孟赐福),浙江省农业科学院土肥所(周梅芳)
摘    要:石灰石粉施用量的试验结果表明:(1)随着石灰石粉用量增加,土壤pH升高,交换性铝和铝饱和度下降。施后7年仍可发挥其效果。(2)施用石灰石粉,显著增加每株蒴数和千粒重,增产幅度为17%—6l%。(3)土壤pH升高到6.0以上、交换性铝含量降至1.0me/100克土以下,芝麻才能获得较高的产量。

关 键 词:芝麻  施石灰石粉  代换性铝

THE EFFECT OF LIMING IN RED SOIL ON SESAME SEED YIELD
Meng Cifu Zhou Meifang. THE EFFECT OF LIMING IN RED SOIL ON SESAME SEED YIELD[J]. Chinese Journal of Oil Crop Sciences, 1991, 0(4)
Authors:Meng Cifu Zhou Meifang
Abstract:Soil acidity,associated with elemental deficiency and toxicity,is a limiting factor in Southern agriculture.Two lime experiments were carried out in red soils derived from a Quaternary red clay near lanxi,Zhejiang.One was a low lime rate experiment which included six Levels of 0 ,0.76,1.5,2.25,3.0 and 3.75 t/ha of calcitic limestone; the other was a high lime experiment which included five levels of 0,3.75,7.5,11.25 and 15 t/ha of calcitic limestone and 5.55 t/ha of hydrated lime.The results suggested that liming increased soil pH and decreased exchangeable Al as increasing lime rate and its residue effect could for 7 years.Application of limestone can increased sesame seed yield by 17%-61%.To obtain higher yield of sesame,exchangeable Al should be reduced to less then 1.0me/ 100g and soil pH should be raised to greater then 6.0.
Keywords:Sesame  Red soil  Applicatiom of limestone  ExchangeableAl
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