山东农业大学学报（自然科学版）2018，Vol.49Issue(2)：272-277,6.DOI:10.3969/j.issn.1000-2324.2018.02.018
不同有机物覆盖对滨海盐渍土改良效应的研究
Study on the Effects of Organic Matter Mulching on Improvement of Coastal Saline Soil
摘要
Abstract
In order to study the improvement effects of organic matter mulching on coastal saline soil and to select the suitable mulching and returning combinations,through the field experiment,five types of mulch,the wheat straw(A),30 cm corn stalk(B1),50 cm corn stalk(B2),whole corn stalk(B3),weed straw(T)were selected,4 kind of gradient coverage:0.3 kg/m2(F1),0.6 kg/m2(F2),0.9 kg/m2 (F3),1.2 kg/m2(F4)were designed,the effects of different treatments on soil salinity and corn yield were studied by conventional tillage through corn field experiment.The results showed that:the soil salt content with organic matter mulching from 0 to 40 cm decreased greatly,the inhibition effect of salt surface polymerization was obvious;A,B1,T,and B2,B3 have A good effect on salt suppression in the coverage of 0.9 kg/m2and 1.2 kg/m2respectively.Weed straw(T)has obvious effect on raising soil pH,A,B1,B2,B3 had no significant differences compared with CK.Different levels of organic matter mulching increase the yield of maize,the mulching type and mulching amount are the significant factors that affect the maize yield.Maize yield increased first and then decreased with the increase of mulching,it reached a higher level when the mulch was 0.9 kg/m2.The yield increasing effect of the better treatment is AF3>TF3>B1F3>B2F3>B3F3,AF3 treatment was 23.26%,32.87%,145.92%,175.81% higher than that of TF3,B1F3,B2F3 and B3F3,respectively.Results of this study suggested that the better mulching amount was 0.9 kg/m2with the wheat straw in production.关键词
滨海盐渍土/有机物覆盖/土壤含盐量/土壤pH/玉米产量Key words
Coastal saline soil/organic matter mulching/soil salt content/soil pH/maize yield分类
农业科技引用本文复制引用
杨东,李新举,许燕,李俊颖..不同有机物覆盖对滨海盐渍土改良效应的研究[J].山东农业大学学报（自然科学版）,2018,49(2):272-277,6.基金项目
国家自然科学基金项目(41171425) （41171425）
山东省自主创新及成果转化专项(2014ZZCX07402) （2014ZZCX07402）
山东农业大学盐碱地改良利用项目(2014208) （2014208）
