SI Dong-xia.,CHEN Xin-ping,CHEN Qing,et al.Effects of Controlled Release Fertilizer and Water Retaining Agent on Plant Growth and N Leaching of Cucumber During Seedling Nursery Period[J].Northern Horticulture,2013,37(03):176-180.
控释肥料与保水剂的施用对黄瓜幼苗生长及氮素淋洗的影响
- Title:
- Effects of Controlled Release Fertilizer and Water Retaining Agent on Plant Growth and N Leaching of Cucumber During Seedling Nursery Period
- 文章编号:
- 1001-0009（2013）03-0176-05
- Keywords:
- controlled release fertilizer; water retaining agent; water saving irrigation; nitrogen leaching
- 分类号:
- S 642.206+.2
- 文献标志码:
- A
- 摘要:
- 以“中农12号”黄瓜为试材，通过盆栽试验，研究了控释肥料(CRF)与保水剂(WRA)的施用对黄瓜幼苗生长及育苗期内水、氮运移状况的影响。结果表明：与传统育苗方式相比，CRF和WRA的施用可略改变植株株型，最新展开叶片的SPAD显著提高；CRF1(3.2 kg/m3)＋CRF2(7.5 kg/m3)与WRA1(聚丙烯酸和丙烯酰胺交联共聚物)或WRA2(丙烯酰胺和丙烯酸钾的交联共聚物)混和施用，可显著提高植株最新展开叶片的叶面积；CRF和WRA的施用可不同程度的降低无机氮素养分淋失，灌溉节水1.1%～11.7%，减少水分渗漏量1.1%～46.8%。综合分析植株生长状况、氮素淋失量及节水灌溉情况，CRF1＋CRF2与WRA1或WRA2混和施用均可实现幼苗健壮生长、育苗期的节水灌溉及带肥移栽的目的，为移栽后大田生育前期的氮素根际调控及水分调控提供依据。
- Abstract:
- Taking ‘Zhongnong No.12’cucumber as materials,a pot experiment was employed to determine the effects of controlled release fertilizer (CRF) and water retaining agent (WRA) on plant growth，water and N movement during seedling nursery stage of cucumber (Cucumis sativus L.) .The results showed that CRF and WRA application could slightly affect plant growth and increase the SPAD value of the last extended leaf，compared with conventional seedling nursery practice.CRF1+CRF2 blended with WRA1 or WRA2 could significantly increase the area of the last extended leaf.CRF and WRA application could reduce mineral N leaching，decrease irrigation rate by 1.1%~11.7% and decrease water percolation volume by 1.1%~46.8%.Plant growth，N leaching and irrigation rate were taken into consideration，CRF1+CRF2 blended with WRA1 or WRA2 could produce healthy seedling，reduce N leaching and save irrigation water during seedling nursery period，while both controlled release N and water retaining agent remained in seedling medium at transplanting time would be useful for subsequent plant growth and N and irrigation management after transplanting.
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备注/Memo
第一作者简介：司东霞（1969-），女，山东东阿人，博士，副教授，现主要从事植物营养研究工作。E-mail：sidongxia@126.com.