肥料增效剂对玉米干物质积累及氮养分吸收的影响.pdf

南方农业学报 Journal of Southem Agriculture2014,45(10):1813-1817
ISSN 2095-191: CODEN NNXAAB
http://www.nfnyxb.
DOI:10.39695:issn.2095-1191.2014.10.1813
肥料增效剂对玉米千物质积累及氮养分
吸收的影响
曾艳,周柳强,黄金生,区惠平,谢如林,谭宏伟
(广西农业科学院农业資源与境研究所;2广西农业科学院甘藤研究所:向宁530007
摘要:目的研究肥料增效剂与化肥配施对玉米干物质积累及氮养分吸收的影响,为玉米生产节本增产提供理
论参考。【方法]采用盆栽试验,每1kg土中N、P、K肥施用量分别为:0368、0.235和0350g,设常规施肥处理(T1).另设
5个增施处理(12-T6),按在常规施肥处理基础上分别增施2mL不同肥料增效剂(Fl~FS),收获期测定玉米将粒、苞
叶、秸杆、根系等全N、P、K养分含量及玉米的养分吸收量和养分利用率。【结果】与常规施肥T处理相比,增施增效剂
处理玉米鲜苞重增加12.0-17.50g盆,增重4.3%6.2%,玉米籽粒重增加3.9%6,9%;:施用肥料增效剂处理的植株干物
质积累量与常规施肥相比增幅为4.97%6.65%。玉米植株各器官(秸秆、籽粒、苞叶+穗轴和根)氮养分吸收量均显示施
用增效剂处理优于对照,增幅为:桔秆20.60%~37.00%;将粒7.20%~13.15%;苞叶+穗轴12.439%~30.94%;根3.13%
3775%。施用肥料增效剂处理与单施用化肥处理相比,氮肥利用率提高5.0%-7.2%。[结论)在常规施肥的基础上增施
肥料增效剂能显著增加玉米植株干物质量及提高,氮肥利用率。
关键词:肥料增效剂;玉米;干物质积累;氮养分吸收
中分类号:513.51
文献标志码:
文章编号:2095-1191(2014)10-1813-05
Effects of fertilizer synergist on dry matter accumulation and
nitrogen nutrient uptake in maize
ZENG Yan ZHOU Liu-qiang HUANG Jin-sheng OU Hui-ping
XIE Ru-lin TAN Hong-
(Agrcul al Resources and Eninmentl Research Institute Guangxi Academy of Agricultural Sciences, Nanning 530007
China; Sugarcane Research Insti ue Guan x aem f A ultural Sciences, Nanning 530007, China
Abstract: [Objective The effects of fertilizer s nergist and fertilizers on maize dry matter accumulation and nitro
gen nutrient absorption were studied to provide references for downsizing production cost of maize and increasing
maize yield. Method]In the pot ex, fertilization amount of N, P and K was 0.368 g/kg. 0.235 and 0.350 g/k
respectively. There was one conventiona fertilier reatment(T1)and five other reatments(2-t). Each treatmen
was added by two milliliter fertilizer synergist hased on conventional fertilizer treatments(F1-F5 The grain, bract
and straw were used to measure the maize nutritional ingredient contents, including total
P and total K
nutrient uptake and utilization of maize were calculated. Result ] Compared with NPK conventional fertilization treat
ment T1 added fertilizer synergist made fresh comm shell weight increase by 12.0 to 17.50 g/pot with the increment
ranging from 4. 3% to 6.2%. Maize grain weight
6.9%.comparedtnthecontroltheincr
range of dry maer accumulation was%.. en nu ren a ption volume in various com organ
straw, grain, husk++ob and root under synergist treatments was superior to that of the control. (straw: 20.60%0-37.00%
grain: 7. 20%-13.15; husk+ob: 12. 43%-30.94: moot: 3.13%-37.75%) Compared with single chemical fertilizer,
nitrogen utilization rate of syner t treatment increased from 5.0% to 7. 2%.[ Conclusion]Adding synergist to conve-
tional fertilizer can markedly increase dry matter content and improve nitrogen utilization rate
Key words fertilizer synergist; maize; y matter accumulation; nutrient uptak
0引言
料浪费或肥效不能充分发挥的问题日渐突出,氮是影
研究意义)在玉米生产中,不合理施肥造成的肥响玉米高产的最主要限制因子,玉米全生育期对氮素
收稿日期:2014-09-15
基金项目:农业部行业科技专项项目(201003014);广西农业科学院基本科研业务专项项目(2013YM19,2013YQ06,2014JZ18)
青秀区科技攻关项目(2012N15)
作者简介:*为通讯作者,谭宏伟(1961-),研究员,主要从事植物营养与生态环境研究工作,E-mai:hwan(@gxaas.net.曾艳(1982
主要从事植物营养与环境生态硏究工作,F-mail:zengyan_5282850163.com
万方数据