摘要
[目的]筛选临河区食用向日葵最经济有效的施肥量和最适宜的肥料配比组合。[方法]采用"3414"不完全方案试验,对临河区食用向日葵不同产量下的养分肥效和氮磷钾肥最佳施用量进行研究。[结果]氮磷钾肥的足量配合施用对食用向日葵产量影响较大,且肥效较好。氮磷钾肥的综合效应为57.7%,说明足量氮磷钾肥配合施用,才能发挥肥料的最大效应。氮磷钾3种肥料以氮肥效应最大,为35.0%,其次是磷肥,为14.1%。临河区食用向日葵最大产量施肥量N为258.8 kg/hm2,P2O5为117 kg/hm2,K2O为98 kg/hm2;最佳经济施肥量N为240.8 kg/hm2,P2O5为108.4 kg/hm2,K2O为86.8 kg/hm2[结论]该研究为食用向日葵科学施肥提供理论依据。
[Objectie]To select the most economical and effective fertilizer amount and the most suitable fertilizer ratio combination for edible sunflower in Linhe District.[Method]The fertilizer effect and optimal amount of N,P and K fertilizers for edible sunflower under different yields in Linhe District were studied by using"3414"incomplete fertilizer experiment method. [Result]The combined application of N,P and K fertilizers had a greater impact on the yield of edible sunflower,and the fertilizer effect was higher. The comprehensive effect of N,P,K fertilizers was 57.7%,which indicated the fertilizers effect could be exerted mostly under coordination condition of enough N,P and K fertilizers.Among the fertilizers effect of N,P and K,N fertilizer was 35.0% which was the highest,and the next was the P fertilizer which was 14.1%.Based on the result,in Linhe District,the optimal amount of fertilizers for edible sunflower was 258.8 kg/hm2 of N,117 kg/hm2 of P2O5,and98 kg/hm2 of K2O,the most economical amount of fertilizers for edible sunflower was 240. 8 kg/hm2 of N,108. 4 kg/hm2 of P2O5,and86.8 kg/hm2 of K2O.[Conclusion]This study provides theoretical basis for scientific fertilization of sunflower.
作者
韩成
樊秀荣
张红萍
翟永胜
张艳
慧敏
贾俊岐
李军
HAN Cheng;FAN Xiu-rong;ZHANG Hong-ping(Linhe District Agricultural Technology Extension Center,Linhe,Inner Mongolia 015000)
出处
《安徽农业科学》
CAS
2018年第36期134-136,145,共4页
Journal of Anhui Agricultural Sciences
基金
国家农业部测土配方施肥基金项目
关键词
食用向日葵
最佳施肥量
肥效
Edible sunflower
The optimal amount of fertilizers
Fertilizer effect
