本省兩期作水稻之氮素營養比較
Other Title
COMPARISON OF NITROGEN NUTRITION OF RICE PLANTS BETWEEN THE TWO CROP SEASONS IN TAIWAN
Journal
臺灣農業
Journal Volume
12
Journal Issue
4
Pages
16-21
Date Issued
1976-12
Author(s)
邱再發
Tsai-Fua Chiu
Abstract
本省之兩期稻作，無論是在不氮肥施用量，氮肥分施，密植栽培及一般推廣品種栽培情形之下，第二期作都比第一期作減產。第二期水稻之氮素濃度比第一期作較高，氮肥之吸收率亦不差，但水稻所吸收之氮素量大用為於稻藁之生長。所以水稻之氮素吸收並不是第二期作稻否產量之限制因素，即水稻氮素營養不是第二期稻作減產之原因。
The cause of lower yield of rice in the second crop than in the first crop has been a subject which attracts agricultural scientists in Taiwan. It is generally recognized that less tiller number, less total dry matter production, lower grain/straw ratio and lower grain yield are found in the second crop than in the first corp.
Subjects
水稻
氮素
營養
Publisher
臺灣省政府農林廳
Type
journal article