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Effects during Period of Siliqua Developing of KH 2 PO 4 and MgSO 4 Application on Nitrogen Transportation in Pods of Oilseed Rape( Brassica napus L.)

Effects during Period of Siliqua Developing of KH 2 PO 4 and MgSO 4 Application on Nitrogen... An experiment was conducted in field experiment plot to investigate nitrogen transportation from hulls of pods in different periods at early stage of siliqua developing and effect of KH2PO4 and MgSO4 application on it using 15N‐urea. More than 80 % of 15N applied on the surface of pods at lower terminal during flowering was recovered from all pods one month after flowering, most of them were still in the hulls of labelled pods, 17‐27 % of l5N applied was transported into seeds, a small amount was transported to pods at upper terminal, a little amount was found in pods at branch. More l5N applied in middle period of flowering was transported to pods at upper terminal and branch than those applied in early period of flowering. It should be further investigated to conclude how will be going on transportation of nitrogen from hulls as preceding of siliqua developing towards maturity of seeds and its difference between 15N applied in more different periods. Application of KH2PO4 and MgSO4 with 15N‐urea of surface of pods promoted transportation of 15N into seeds from hulls, effect of MgSO4 was more notable. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Agronomy and Crop Science Wiley

Effects during Period of Siliqua Developing of KH 2 PO 4 and MgSO 4 Application on Nitrogen Transportation in Pods of Oilseed Rape( Brassica napus L.)

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References (7)

Publisher
Wiley
Copyright
Copyright © 1991 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0931-2250
eISSN
1439-037X
DOI
10.1111/j.1439-037X.1991.tb00960.x
Publisher site
See Article on Publisher Site

Abstract

An experiment was conducted in field experiment plot to investigate nitrogen transportation from hulls of pods in different periods at early stage of siliqua developing and effect of KH2PO4 and MgSO4 application on it using 15N‐urea. More than 80 % of 15N applied on the surface of pods at lower terminal during flowering was recovered from all pods one month after flowering, most of them were still in the hulls of labelled pods, 17‐27 % of l5N applied was transported into seeds, a small amount was transported to pods at upper terminal, a little amount was found in pods at branch. More l5N applied in middle period of flowering was transported to pods at upper terminal and branch than those applied in early period of flowering. It should be further investigated to conclude how will be going on transportation of nitrogen from hulls as preceding of siliqua developing towards maturity of seeds and its difference between 15N applied in more different periods. Application of KH2PO4 and MgSO4 with 15N‐urea of surface of pods promoted transportation of 15N into seeds from hulls, effect of MgSO4 was more notable.

Journal

Journal of Agronomy and Crop Science – Wiley

Published: Dec 1, 1991

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