滴灌施肥对‘特罗维它’甜橙生长结果的影响  

The Effects of Drip Fertigation on Tree Growth and Fruiting of Trovita Sweet Orange(Citrus sinensis Osbeck)in Calcareous Purple Soil in Chongqing of China

作　　者：彭良志[1] 淳长品[1] 江才伦 王雪生 刘生 曹立 雷霆 凌丽俐 

机构地区：[1]中国农业科学院柑橘研究所,重庆400712 [2]国家柑橘工程技术研究中心,重庆400712 [3]重庆市柑橘工程技术研究中心,重庆404303 [4]重庆现代柑橘发展有限公司,重庆404303

出　　处：《园艺学报》2011年第1期1-6,共6页Acta Horticulturae Sinica

基　　金：国家科技支撑计划课题(2007BAD47B04);重庆市科委科技专项(CSTC2007AA1016);农业部行业攻关项目(20090323-10)

摘　　要：以卡里佐枳橙砧‘特罗维它’甜橙为材料,以每年撒施10次肥料为对照,研究了年施肥总量一定,不同滴灌施肥频率（每年4次、10次和16次）对树体生长、产量和品质的影响。2002—2007年的结果显示,仅个别年份的处理与对照的树干粗度、树高和冠径存在显著差异以外,到试验结束时,不同滴灌施肥频率对树干粗度、树高和冠径大小无显著影响,滴灌施肥与对照间的树体生长无显著差异。滴灌施肥可显著提高果实产量,处理的累计产量比对照高29.4%~36.5%;增加滴灌施肥频率无显著增产作用;滴灌施肥对果实品质无显著影响。建议碱性紫色土柑橘园滴灌施肥频率为每年4次。A field experiment was conducted during 2002—2007 to evaluate effects of various drip fertigation frequencies（4 times/year,10 times/year,16 times/year）on tree growth,fruit yield and quality of Trovita sweet orange（Citrus sinensis Osbeck）on‘Carrizo’citrange [Poncirus trifoliata（L.）Raf.] × Citrus sinensis Osbeck] rootstock（planted in 2001）in calcareous purple soil in Zhongxian County of Chongqing. The control trees were fertilized（10 times/year）by broadcast application. The results showed that tree trunk circumference,tree height and canopy diameter did not show significant response to fertigation frequency;And no significant difference existed between fertigation treatments and control for tree growth. However,fertigation treatments showed significant effects on increasing fruit yield with 29.4%–36.5% more accumulative yield than the control,but high fertigation frequency did not increase fruit yield. No significant effects was observed for fertigation on fruit quality. It is recommended that citrus growing in calcareous purple soil should be drip fertigated 4 times a year.

关 键 词：甜橙 滴灌施肥 生长 结果 

分 类 号：S666.4[农业科学—果树学]