|Table of Contents|

Effect of Water Retaining Agent Improving Soil Polluted by Lead on Nutrient Use and Growth of Chinese Cabbage(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年19期
Page:
160-164
Research Field:
Publishing date:

Info

Title:
Effect of Water Retaining Agent Improving Soil Polluted by Lead on Nutrient Use and Growth of Chinese Cabbage
Author(s):
WANG Li-rui 1; 2; KOU Tai-ji1; HUANG Yu-bo3
1.College of Agriculture,Henan University of Science and Technology,Luoyang,Henan 471003；2.Puyang Vocational and Technical College,Puyang,Henan 457000；
3.Zhoukou Academy of Agriculture Sciences,Zhoukou,Henan 466000
Keywords:
water retaining agent; soil improvement; vegetable; soil pollution; nutrient utilization efficiency
PACS:
S 156.2
DOI:
-
Abstract:
Taking ‘Shanghai Qing’ Chinese cabbage as material,the effect of different levels of water retaining agents (WRA) applied to different degrees of soil polluted by lead (SPL) on the growth and biomass of Chinese cabbage were studied.The absorbability of nitrogen (N),phosphorus (P) and potassium (K) and their utilization efficiencies by simulated field experiment were determined.The results showed that adding SPL was disadvantaged with the growth of vegetable and absorption and utilization of nutrients.Effect of WRA application in improvement of polluted soil on vegetable growth and absorption and utilization of N,P and K nutrients were controlled by pollution degree and level of WRA application together.WRA applied to soil polluted by lead could promote the growth of vegetable and increase its biomass by 10.0%～23.3%.Moreover,larger level of WRA application in lower SPL and smaller application level of WRA in SPL were advantaged with the growth of vegetable.Moderate level of WRA promoted the uptake and utilization of vegetable plant to N,P and K nutrients,which was more obvious with growth development；WRA application improved the utilization efficiencies of fertilizer N,P and K,which was different within different nutrient sort.Lager level of WRA application in lower SPL and smaller that in higher SPL applied to improve SPL could generally increase utilization efficiency of N,P and K nutrients.The increases of utilization efficiencies of N,P and K nutrients and vegetable biomass together were better with level of WRA application with 1.2 g/kg dry soil in SPL improvement compared with 2.4 g/kg dry soil.

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Last Update: 2014-11-26