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Effects of Controlled Release Fertilizer and Water Retaining Agent on Plant Growth and N Leaching of Cucumber During Seedling Nursery Period(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年03期
Page:
176-180
Research Field:
Publishing date:

Info

Title:
Effects of Controlled Release Fertilizer and Water Retaining Agent on Plant Growth and N Leaching of Cucumber During Seedling Nursery Period
Author(s):
SI Dong-xia1.2; CHEN Xin-ping2; CHEN Qing2; ZHANG Fu-suo2
1.College of Agriculture Sciences，Liaocheng University，Liaocheng,Shandong 252000；
2.College of Resources and Environment Sciences，China Agricultural University，Beijing 100194
Keywords:
controlled release fertilizer; water retaining agent; water saving irrigation; nitrogen leaching
PACS:
S 642.206+.2
DOI:
-
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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Last Update: 2014-08-23