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1. (WO2018135296) CARBON DIOXIDE FERTILIZING DEVICE

Pub. No.:    WO/2018/135296    International Application No.:    PCT/JP2017/047290
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Fri Dec 29 00:59:59 CET 2017
IPC: A01G 7/02
A01G 7/00
A01G 9/18
Applicants: YANMAR CO., LTD.
ヤンマー株式会社
Inventors: TAKEMOTO Toru
武本 徹
ISHII Akio
石井 章夫
Title: CARBON DIOXIDE FERTILIZING DEVICE
Abstract:
Provided is a carbon dioxide fertilizing device capable of optimally controlling the amount of supply of carbon dioxide in accordance with the state of photosynthesis of a plant. This carbon dioxide fertilizing device 1 determines the state of photosynthesis of a plant 23 on the basis of the difference in temperature of a leaf vein part 34 and a leaf blade part A of the plant 23 and the time, determines the rate of photosynthesis of the plant 23 on the basis of the temperature difference between the temperature in an agricultural facility and the leaf temperature of the plant 23, and controls the amount of supply of carbon dioxide to the agricultural facility in which the plant 23 is grown on the basis of the state of photosynthesis of the plant 23 using the determined photosynthesis rate of the plant 23 as an index.