Title: Variability of Physical and Chemical Properties of the Greenhouse Soil in Different Soil Types of Ningxia
Abstract: Based on distributing locations of the greenhouse of Ningxia,the soil samples in diffe-rent layers(0-15cm,15-30cm,30-60cm) were collected by means of random sampling for both the different greenhouses and soil types(irrigating silt soil,Heilu soil,semiarid).The changes features of physical and chemical properties in the tested soils were analyzed.The results showed that soil bulk density of semiarid and irrigating silt soil was higher than that of Heilu soil from 0 to 60 cm.The order of soil porosity,organic matter,total N,nitrate N,total P,available P,readily available K and slow-release K from 0 to 60cm in three types soil were: Heilu soilirrigating silt soilsemiarid,for total salt,irrigating silt soilsemiaridHeilu soil,and for pH,Heilu soil,semiaridirrigating silt soil.The order of alkali-hydrolyzable N content was irrigating silt soil equal Heilu soilsemiarid.There were 1% or 5% level of significant differences between different soil types and different depths at soil bulk density,soil porosity,total salt,pH,content of organic matter,nitrogen,phosphorus,potassium.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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