江西农业学报2017，Vol.29Issue(1)：47-50,4.DOI:10.19386/j.cnki.jxnyxb.2017.01.10
不同施肥方式对甘薯光合特性及产量的影响
Effects of Different Fertilization Modes on Photosynthetic Characteristics and Yield of Sweet Potato
摘要
Abstract
A long-term location experiment was conducted to study the effects of different fertilization modes on the photosyn-thetic characteristics and yield of sweet potato in fluvo-aquic soil, in order to provide scientific references for establishing the opti-mal fertilization pattern and promoting the sustainable production of sweet potato .This experiment was designed with four treat-ments:no fertilization (CK), single application of chemical fertilizer (NPK), pure organic manure application (M), combined application of organic manure and chemical fertilizer ( MNPK) .The results showed that:in comparison with the CK, the fertiliza-tion treatments ( NPK, M, MNPK) could significantly increase the chlorophyll content , photosynthetic rate, stomatal conduct-ance, and intercellular CO2 concentration of sweet potato, and MNPK treatment had the best effects.As for the yield and yield traits of sweet potato, as compared with the CK, all fertilization treatments could significantly enhance the number of root tuber per plant, single-tuber weight and root tuber yield, and the root tuber yield in the treatments NPK and MNPK was significantly higher than that in the treatment M , but there was no significant difference in root tuber yield between the former two treatments , sugges-ting that the supplementary application of organ manure on the basis of chemical fertilizer application had no significant yield-in-creasing effect on sweet potato.关键词
施肥/甘薯/光合特性/产量Key words
Fertilization/Sweet potato/Photosynthetic characteristics/Yield分类
农业科技引用本文复制引用
魏猛,张爱君,李洪民,诸葛玉平,唐忠厚,陈晓光,娄燕宏..不同施肥方式对甘薯光合特性及产量的影响[J].江西农业学报,2017,29(1):47-50,4.基金项目
公益性行业（农业）科研专项经费项目（201203030）；国家甘薯产业技术体系（ CARS－11－B－13）。 （）
