配方施肥与定植密度对洋葱生育与产量的影响  

Study on the Effect of Formula Fertilization and Planting Density on the Growth and Output of Allium cepa L.

作　　者：胡俊杰[1] 金伊洙[1] 李新江[1] 

机构地区：[1]吉林农业科技学院植物科学学院,吉林吉林132101

出　　处：《安徽农业科学》2009年第33期16296-16297,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究施肥量、栽培定植密度、定植时间对洋葱生育与产量的影响。[方法]试验采用正交设计L9(34)方案,设N、P、K肥不同施肥量、不同定植密度4个因素,每因素设3个水平,3次重复,对试验结果进行数据统计分析。[结果]对洋葱生产具有主要影响因素的是氮肥施用量,定植密度和钾肥施用量为次主要因素,磷肥施用量是次要因素。氮肥施用量主要对株高、叶绿素含量、鳞茎的大小、产量都有影响,要提高这些指标,可在一定范围内增施尿素。[结论]经综合平衡法分析后,得出最优的栽培措施是尿素施用量为600kg/hm2,定植密度为15.0cm×15.0cm,钾肥施用量为1200kg/hm2,磷肥施用量为900kg/hm2。采用此栽培措施,洋葱生长发育好,产量高。[ Objective ] The research aimed to discuss the effect of fertilizer amount, field planting density and planting time on the growth and output of AUium cepa L. [ Method ] Using L9 （3^4） orthogonal design program, four factors including different fertilizer amount of N, P, K and different planting density were set up, with every factor of three levels, three repititions, and the data of test results were statistically analyzed. [ Result] The first influencing factor on AUium cepa L. was N fertilizer amount. Field planting density and K fertilizer amount were the second factors. And P fertilizer was the third factor. N fertilizer amount mainly influenced the plant height, chlorophyll content, bulb size and output. The amount of urea could be added in certain range so as to increase these indices. [ Conclusion] By analysis by using comprehensive balance way, the best cultivation measure was obtained as follows： urea amount was 600 kg/hm^2 , field planting density was 15.0 cm × 15.0 cm, K fertilizer amount was 1 200 kg/hm^2, P fertilizer amount was 900 kg/hm^2.

关 键 词：施肥量 定植密度 生育与产量 

分 类 号：S633.2[农业科学—蔬菜学]