南方农业学报2016，Vol.47Issue(6)：965-969,5.DOI:10.3969/j:issn.2095-1191.2016.06.965
施肥量对秋播麻疯树周年生长和养分积累的影响
Effects of fertilizer application rates on annual growth and nutrient accumulation for autumn sowing Jatropha curcas L.
摘要
Abstract
Objective]The nutritious characteristics were studied, in order to provide references for appropriate fertil-ization in cultivation of Jatropha curcas L. [Method]Using J. curcas cultivar FD-8 as tested material, the pot experiment was conducted to study the annual growth characteristics and nutrient accumulation of autumn sowing J. curcas under dif-ferent application rates of compound fertilizer(1.415, 2.830 and 4.246 t/ha), with no fertilization as control(CK). [Result]The results showed that, the compound fertilizer application could obviously promote growth of J. curcas plantlet, while there existed some differences in effect of fertilizer application rates on ground diameter and stem height growth at different growth stages. Under different treatments, the annual accumulation of N, P2O5 and K2O were 0.185-0.750, 0.249-1.047 and 1.089-4.514 g/plant, respectively, and the ratio was approximately 1.0∶1.4∶6.2. With the increase of fertilizer applica-tion rates, the annual accumulation of N, P2O5 and K2O in root, stem and leaf increased significantly, while the contents of N, P2O5 and K2O in root, stem and leaf increased first but then decreased. The compound fertilizer application had ob-viously influence on N, P2O5 and K2O distribution in root, stem and leaf.[Conclusion]The compound fertilizer(N∶P2O5∶K2O=18∶8∶18) application rate of 4.246 t/ha is mostly beneficial to supplement N, P and K nutrient, and which can improve synthetical growth of J. curcas.关键词
麻疯树/施肥量/苗木生长/养分积累Key words
Jatropha curcas L./fertilizer application rate/plantlet growth/nutrient accumulation分类
林学引用本文复制引用
韦剑锋,韦冬萍,吴炫柯,胡江如,徐东升..施肥量对秋播麻疯树周年生长和养分积累的影响[J].南方农业学报,2016,47(6):965-969,5.基金项目
广西高校中青年教师基础能力提升项目（KY2016YB847）；广西高等学校科研项目 （）
