Effect of Different Nutrient Solutions on Soil Secondary Salinization in Greenhouse

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Different Nutrient Solutions on Soil Secondary Salinization in Greenhouse

Author(s):: ZHANG Jingmin1; 2; 3; SUI Shenli2; WEI Min3; (1.Research and Development Center of Bio-engineering，Weifang University of Science and Technology，Shouguang，Shandong 262700；2.Shandong Shouguang Ouyate Vegetable Company，Shouguang，Shandong 262704；3.College of Horticulture Science and Engineering，Shandong Agricultural University，Tai′an，Shandong 271018)

Keywords:: nutrient solution; soil in greenhouse; soil secondary salinization

Abstract:: To provide the theory basis for the remediation of secondary salinization soil，using simulated soil column experiments，the effect of different dosage and ratio of KCl and MgCl2 mixture on salinization nutrient ions in the secondary salinization soil were studied，which had the 3 years of planting.The results showed that with the increasing concentrations of nutrient solution，the content of soil K+,Mg2+,Cl- and the total salinity were increased，and Na+,Ca2+ and HCO3- content were reduced.However，compared with original soil，soil K+,Na+,Ca2+,Mg2+,Cl- and total soil salinity were decreased，HCO3- and SO42- were increased.Seen from the variation of soil total charge，the variation in 1∶1 treatment had small change ranges，but the residual of soil cationic decreased with increasing apply of K+ in the 2∶1 treatment.It could be concluded that balanced and low application fertilizer could alleviate the soil saline，decrease the soil nutrition leaching and improve the balance among ions.

[1]喻景权.“十一五”我国设施蔬菜生产和科技进展及其展望[J].中国蔬菜,2011(2):11-23.

[2]杨慧,谷丰,杜太生.不同年限日光温室土壤硝态氮和盐分累积特性研究[J].中国农学通报,2014,30(2):240-247.

[3]余海英,李廷轩,周健民.典型设施栽培土壤盐分变化规律及潜在的环境效应研究[J].土壤学报,2006,43(4):571-576.

[4]史春余,张夫道,张俊清,等.长期施肥条件下设施蔬菜地土壤养分变化研究[J].植物营养与肥料学报,2003,9(4):437-441.

[5]张金锦,段增强,李汛.基于黄瓜种植的设施菜地土壤硝酸盐型次生盐渍化的分级研究[J].土壤学报,2012,49(4):673-680.

[6]陈竹君,王益权,许安民,等.施用不同种类氮肥对日光温室土壤溶液离子组成的影响[J].植物营养与肥料学报,2008,14(5):907-913.

Last Update: 2016-12-08