国立研究開発法人 国際農林水産業研究センター | JIRCAS

Development of a Drip Fertigation System for Protected Horticulture on Sloping Land

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

A drip fertigation system was developed to improve vegetable production in sloping greenhouses. The system comprised a control unit, fertilizer injection unit, feed tank, feed pump, feed valves, and nutrient reservoir, which are also used in flatland drip fertigation systems. These components were placed in the upper part of a sloping greenhouse, and dripper lines with diaphragms were installed on longitudinal ridges. However, it resulted in unbalanced irrigation along the slope because when the irrigation was complete, the nutrient solution and water remaining in the dripper lines flowed out of drippers in the lower part of the dripper lines due to gravity. This problem was solved using a newly developed system, featuring a drainpipe and drain valve installed at the lower end of the dripper lines. On completing fertigation, the drain valve, which had been closed during the irrigation, was opened. The nutrient solution and remaining water in the dripper lines then immediately flowed into the drainage reservoir via gravity and not onto the field.

刊行年月2013-04-01
作成者KAWASHIMA Hiroki
著者キーワード

drain valve

dripper line

nutrient solution

unbalanced irrigation

公開者Japan International Research Center for Agricultural Sciences
データ作成日2013-04-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
47
2
開始ページ171
終了ページ174
DOI10.6090/jarq.47.171
権利Japan International Research Center for Agricultural Sciences
言語eng