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Citation:

TESTING ON WILTING COEFFICIENT OF SEEDLINGS OF SEVERAL MAJOR PLANTING SPECIES IN JIULONG HILL,BEIJING

  • Received Date: 1989-12-26
  • This article discussed the wilting coefficient of seedling in different soil textures and seedling standards for four planting species.Some of the important results have been achieved.In the loam soil,the permanent wilting coefficient of Pinus tabulaeformis and Acer truncatum are higher,about 24.5% and 25.1% respectively.There are significant difference caused by the soil texture and the seedling standard for Platycladus orientalis in loam soil.Its permanent wilting coefficient is about 19.9% for untransplanting seedling at 1.5 years,21.5% for untransplanting seedling at 2.5 years,19.2% for transplanting seedling by 2.5 years.But in sandy loam soil,it is about 12.8%,behind that in the loam.Meanwhile,the temporary wilting coefficient was also a testing factor and the periods of suffering drought has been recorded in this experiment.The wilting coefficient and soil water content were expressed in soil relative water content.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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TESTING ON WILTING COEFFICIENT OF SEEDLINGS OF SEVERAL MAJOR PLANTING SPECIES IN JIULONG HILL,BEIJING

  • 1. The Research Institute of Forestry CAF

Abstract: This article discussed the wilting coefficient of seedling in different soil textures and seedling standards for four planting species.Some of the important results have been achieved.In the loam soil,the permanent wilting coefficient of Pinus tabulaeformis and Acer truncatum are higher,about 24.5% and 25.1% respectively.There are significant difference caused by the soil texture and the seedling standard for Platycladus orientalis in loam soil.Its permanent wilting coefficient is about 19.9% for untransplanting seedling at 1.5 years,21.5% for untransplanting seedling at 2.5 years,19.2% for transplanting seedling by 2.5 years.But in sandy loam soil,it is about 12.8%,behind that in the loam.Meanwhile,the temporary wilting coefficient was also a testing factor and the periods of suffering drought has been recorded in this experiment.The wilting coefficient and soil water content were expressed in soil relative water content.

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