摘要
通过基质栽培试验 ,研究了荷兰 3号黄瓜N、P、K的营养特性。结果表明 :1、在黄瓜的各生长阶段 ,植株中N、P、K的含量范围分别是 4.67～ 6.5 1 %、0 .5 0～ 0 .67%、4.0 1～ 4.91 % ;2、黄瓜自苗期到盛果期 ,植株中N和K的含量逐渐降低 ,P的含量呈倒置的抛物线型变化 ;3、荷兰 3号黄瓜在苗期、挂果期、盛果前期、盛果期 4个生育阶段 ,植株中N、P、K含量比例依次为 :9.7∶1∶7.4、1 1 .2∶1∶8.0、8.4∶1∶7.6、7.7∶1∶6.6;4、荷兰 3号黄瓜果实中N、P、K的含量均要高于其它器官中的含量 ,到生长后期 ,根、叶中的N素向果实中转移 ,叶片中的K则向果实和根系中转移。
With substrate culture experiments.the nutrient characteristics of nitrogen.phosphorus and potassium of Dutch 3 cucumber were studied.The results should that(1) the ranges of content of nitrogen,phosphorus and potassium in plant were 4.67～6.51%.0.50～0.67% and 4.01～1.91% in different growing period.(2)the contents of N and K in cucumber plant declined gradually from seedling stage to advance fruit stage.and the curve of the P content change was like the letter'U'.(3)the ratios of the N.P and K contents of the cucuber plant were in turn 9.7∶1∶7.4,11.2∶1∶8.0,8.4∶1∶7.6,7.7∶1∶6.6 from seedling stage to advance fruit stage.(4)the content of N,P and K in fruit were higher than the others organs.At later period.N of roots and leaves transferred to fruits.leaves′K transferred to fruits and root system.
出处
《安徽技术师范学院学报》
2003年第3期220-224,共5页
Journal of Anhui Agrotechnical Teachers College
基金
安徽省"十五"科技攻关项目 ( 0 1 0 1 3 0 1 4)资助课题
关键词
黄瓜
基质栽培
营养特性
氮
磷
钾
Cucumber
Substrate culture
Nutrient characteristic
Nitrogen
Phosphorus
Potassium
