控释肥对大葱生长及品质的影响  

Effects of Controlled-release Fertilizer on Welsh Onion

作　　者：吴静[1] 魏佑营[1] 张民[2] 杨天慧[1] 刘莎莎[1] 

机构地区：[1]山东农业大学园艺学院,山东泰安271018 [2]山东农业大学资源与环境学院,山东泰安271018

出　　处：《西北农业学报》2009年第5期346-349,353,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金："十一五"国家科技支撑计划项目(2006BAD10B07)资助

摘　　要：以大葱为试材,采用"金正大公司"生产的控释掺混肥(21-6-15)进行栽培试验,并与普通复合肥进行肥效对比。分析不同施肥处理对大葱株高、茎粗、叶绿素含量、可溶性糖含量等指标的影响,探讨控释肥在大葱生产上应用的可行性及最佳施肥量。结果表明:控释肥养分的释放能满足大葱整个生长期对养分的吸收需求,与同量养分的普通复合肥相比,控释肥可以改善大葱的品质、提高其产量,单位面积增产率可达57%左右。从经济效益、大葱产量、品质及肥料利用率等方面综合考虑,100 g/m2的控释肥用量为最佳用量。The effects of controlled-release fertilizer（CRF） on welsh onion were studied, and the fertilizer efficiency of CRF and common compound fertilizer（CCF） were compared. And the effects of different treatments on plant height, stem diameter, chlorophyll and soluble sugar were studied. Analyzing the effects of different application rates was used to study the feasibility of CRF on welsh onion and the optimum amount of fertilizer. The results showed that the nutrient released from CRF could meet the nutrient absorption of welsh onion. Compared with the CCF treatments, the quality of welsh onion , the welsh onion yield and the fertilizer utilization ratio were significantly increased with CRF treatments. The yield with CRF increasing rate per m2 reached 57%. When taking benefit, welsh onion yield, welsh onion quality and the fertilizer utilization ratio into account, the amount of CRF should be 100 g per m2.

关 键 词：控释肥 大葱 最佳施肥量 生长发育 

分 类 号：S633.1[农业科学—蔬菜学]