施有机肥对油桐幼苗生长及其土壤养分含量的影响  

Effects of organic manure on growth and soil nutrients in tung oil tree seedlings

作　　者：万盼[1] 刘芸[1] 黄小辉[1] 熊兴政[1] 欧阳[1] 孟祥江[2] 周恺 

机构地区：[1]西南大学资源环境学院林学系,重庆400716 [2]重庆市林业科学研究院,重庆400036 [3]重庆市林业规划院,重庆400060

出　　处：《中南林业科技大学学报》2016年第3期28-32,共5页Journal of Central South University of Forestry & Technology

基　　金：国家自然科学基金项目(31370602);国家林业公益性行业科研专项(201104043);西南大学资源环境学院大学生科技创新"光炯"培养重点项目(20130215)

摘　　要：以三峡库区油桐幼苗为材料,研究盆栽条件下施用适量(1000g/盆)的猪粪有机肥对土壤养分含量及油桐幼苗生长影响。结果表明:与未施肥土壤(CK)相比,施用猪粪有机肥3个月后土壤p H值升高,但差异不显著(P>0.05),说明长期施有机肥可以防止土壤酸化;猪粪有机肥处理均增加了土壤有机质含量(P<0.05)、全氮和碱解氮含量(P<0.05);却降低了土壤全磷、全钾、有效磷和速效钾含量,说明施有机肥有利于油桐幼苗对土壤养分的吸收;施猪粪有机肥促进了油桐幼苗的株高﹑地径增长及其单株生物量的增加,同时也促进了油桐幼苗根系生长,有利于油桐幼苗在后期生长保持较高的根系吸收养分能力。This study analyzed the effects of the right amount（1 000 g/pot） of pig organic manure on growth and soil nutrients in Three Gorges Reservoir tung oil tree seedlings under potted conditions. Results show that： Comparing with non-organic manure soil（CK）, after using pig organic manure for 3 months, the soil p H was increased, but the difference was not significant（P〈0.05）, this shows that the long-term application of organic manure can prevent soil acidification; the soil under manure organic treatments that contents of organic matter（P〈0.05）, total N and nitrogen（P〈0.05） were increased, but the total P, effective P, total K and available K were decreased, which shows that organic fertilizer making the soil nutrients be more easy absorbed by tung oil tree seedlings; under manure organic treatment, the growth of height, ground diameter and plant biomass were increased, while also promoting the tung tree seedling root growth that making keep a high ability to absorb nutrients in the late growth.

关 键 词：猪粪有机肥 油桐 土壤养分 株高 地径 生物量 

分 类 号：S714.2[农业科学—林学]