ID 210
File
Title Transcription
イラン ニ オケル コムギ オヨビ スイトウ サイバイ ノ エネルギー シュウシ
Title Alternative
An Investigation of the Energy Use of Wheat and Rice Cultivation in Iran
Authors
Abstract
The energy use of wheat and rice cultivation was investigated during 1978 in Iran. The number of investigated farms of the former was 27plots in six provinces and that of latter was 7plots in two provinces. The input-energy of wheat cultivation and grain yield ranged from 0.5 to 1.1x10⁶kcal/ha and from 0.5 to 4.2 ton/ha,respectively. The grain yields of wheat could be shown to have a parallel relation to the logarithm of the input-energy. High-yielding farms of 2 ton/ha in both methods of traditional agriculture,dryfarming and qunart-irrigation,had six as the maximum value in the energy ratio (ER: output-energy as grain yield/input-energy of cultivation). However,pumpirrigation with chemical fertilizer,harvesting high yields from 2 to 4.2 ton/ha,showed low ratios from 1 to 2.5 in the ER. In the case of rice,yields were 0.4-2.25 ton/ha of unhulled rice and the ER ranged from 1 to 6 over the 7plots. The ER of the Ahvaz area,as a low-yielding area with extensive agriculture,varied widely from 1 to 6. On the other hand,that of the Esfahan area,as a high-yielding area with relatively intensive agriculture,was around 2.4.
Publisher
鳥取大学農学部砂丘利用研究施設.
Content Type
Departmental Bulletin Paper
Link
ISSN・ISBN
0285-2845
NCID
AN00174665
Journal Title
鳥取大学農学部砂丘研究所報告
Current Journal Title
鳥取大学農学部砂丘研究所報告
Volume
21
Start Page
9
End Page
19
Published Date
1982-03
Text Version
Publisher
Rights
(pdfファイル作成は農林水産省農林水産技術会議事務局筑波事務所)
Citation
鳥取大学農学部砂丘研究所報告. 1982, 21, 9-19
Department
Faculty of Agriculture/Graduate School of Agriculture
Language
Japanese