|Table of Contents|

Effect of Continuous Cultivating in Plastic Greenhouse on Soil Physicochemical Properties in the Lhasa National Park of Agricultural Science and Technology(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年21
Page:
183-187
Research Field:
Publishing date:

Info

Title:
Effect of Continuous Cultivating in Plastic Greenhouse on Soil Physicochemical Properties in the Lhasa National Park of Agricultural Science and Technology
Author(s):
ZHU Rongjie1; ZHAO Guanfei1; YANG Bin1; WANG Shibin1; LI Baohai2
(1.Institute of Vegetable Sciences，Tibet Academy of Agricultural and Animal Husbandry Sciences，Lhasa，Tibet 850032；2.Tibet Academy of Agricultural and Animal Husbandry Sciences，Lhasa，Tibet 850032)
Keywords:
plateau greenhouse soil; pH; organic matter; macronutrients; trace elements; heavy metal
PACS:
-
DOI:
10.11937/bfyy.201621046
Abstract:
In order to know the changes of pH，organic matter，trace elements and heavy metals in greenhouse soil after continuous cultivating in the Lhasa National Park of Agricultural Science and Technology，which has been running for 12 years.The soil samples from nine greenhouse were selected to conduct experiments.The results showed that the soil pH decreased significantly (P<0.05)，and the soil organic matter was not changed significantly.The content of total phosphorus，available phosphorus and total potassium increased with the increase of planting years.However，the total nitrogen decreased and the change of available potassium was not change significantly.The content of Fe decreased and Mg content increased，significantly with the increase of planting years but Zn content was not change.The content of As，Hg，Cd，Pb were not exceeded，which in accordance with the standards of greenhouse vegetable production environmental quality evaluation issued by the National Environmental Protection Administration.The environmental quality grade of Pb，Hg and As as were evaluated for grade one and clean；total cadmium environmental quality grade for grade two，was still clean，indicating that soil heavy metal content was in line with national standards in Greenhouse，topsoil did not receive the heavy metal pollution..

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Last Update: 2017-01-04