不同氮肥施用量对白芦笋生育指数及产量和品质的影响  

Effect of Nitrogen Application Rates to Growing Index,Yield and Quality of White Asparagus

作　　者：郜春花[1] 卢朝东[1] 王岗[1] 于志勇[1] 李建华[2] 周纪纲 

机构地区：[1]山西省农业科学院土壤肥料研究所山西省土壤环境与养分资源重点实验室,山西太原030031 [2]山西大学生物工程学院,山西太原030006 [3]永济市黄河农场,山西永济044000

出　　处：《山西农业科学》2009年第5期38-41,共4页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(022013)

摘　　要：试验结果表明,不同施氮量对芦笋产量、品质、生育指数及根系等均有不同程度的影响,其中,施纯N 300 kg/hm2对3年生大田白芦笋的效果最显著,芦笋产量最高,Vc含量最高,生育指数也最大,但施氮量高于300 kg/hm2对芦笋根系有比较明显的抑制作用。施氮量(x,kg/hm2)与嫩茎总产量(y1,kg/hm2)和一级笋数(y2,个/hm2)分别呈以下线形关系:y1=2 004.5 x+3 780(R2=0.921 2),y2=576.3 x+1 389.8(R2=0.929 7)。推荐300 kg/hm2纯氮施用量作为同类地区芦笋施氮量的参考指标。The result of the test of nitrogen application rates to white asparagus shows that the application rates of nitrogen to asparagus has the varying degree influence on the yield, quality, growth index and root system. Applied pure nitrogen of 300 kg/hm2 to the white asparagus growing for three years in field the effect is remarkable, the yield is the highest, the Vc content is the highest and the gorwth index is also the biggest. However if the application of nitrogen is higher than 300 kg/hm2, to the root system would have a obvious inhibitory effect. Nitrogen fertilizer application amount （x, kg/hm2） , the asparagus total yield （y,, kg/hm2） and the superior asparagus＇ quantity（y2, pce/hm2） reveal such linear relations respectively, y1=2 004.5 x＋3 780（R2=0.921 2）,y2= 576.3 x＋1389.8 （R2=0.929 7）. Therefore it was recommended 300 kg/hm2 as a norm of nitrogen fertilizer application amount in the similar area.

关 键 词：白芦笋 氮肥施用量 产量 品质 生育指数 

分 类 号：S644.606.2[农业科学—蔬菜学]