NL7510736A - Commercial greenhouse irrigation system - uses temperature difference between exposed and shaded components to determine watering interval - Google Patents

Commercial greenhouse irrigation system - uses temperature difference between exposed and shaded components to determine watering interval

Info

Publication number
NL7510736A
NL7510736A NL7510736A NL7510736A NL7510736A NL 7510736 A NL7510736 A NL 7510736A NL 7510736 A NL7510736 A NL 7510736A NL 7510736 A NL7510736 A NL 7510736A NL 7510736 A NL7510736 A NL 7510736A
Authority
NL
Netherlands
Prior art keywords
exposed
temperature difference
irrigation system
uses temperature
commercial greenhouse
Prior art date
Application number
NL7510736A
Other languages
Dutch (nl)
Original Assignee
Seppo Tahvonen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seppo Tahvonen filed Critical Seppo Tahvonen
Publication of NL7510736A publication Critical patent/NL7510736A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/247—Watering arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Greenhouses (AREA)
  • Radiation Pyrometers (AREA)
  • Catching Or Destruction (AREA)

Abstract

The system waters the plants whenever they need it, this being determined by the temperature, humidity and sunlight in the greenhouse. The watering interval is determined by comparing the temperature of two detector components in the greenhouse (1), one of which (3) is so positioned that it is exposed to the same sunlight and watering as the plants themselves (2), while the other (4) is mounted in the shade, so that it is directly exposed to neither. Watering can take place whenever the temperature difference between the components increases to a predetermined value.
NL7510736A 1974-09-13 1975-09-11 Commercial greenhouse irrigation system - uses temperature difference between exposed and shaded components to determine watering interval NL7510736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI742688A FI49667C (en) 1974-09-13 1974-09-13 Method and apparatus for performing spray irrigation in a greenhouse.

Publications (1)

Publication Number Publication Date
NL7510736A true NL7510736A (en) 1976-03-16

Family

ID=8507450

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7510736A NL7510736A (en) 1974-09-13 1975-09-11 Commercial greenhouse irrigation system - uses temperature difference between exposed and shaded components to determine watering interval

Country Status (5)

Country Link
DK (1) DK141312B (en)
FI (1) FI49667C (en)
NL (1) NL7510736A (en)
NO (1) NO137301C (en)
SE (1) SE7509868L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380734A1 (en) * 1988-02-16 1990-08-08 OCS, Inc. Greenhouse irrigation system based upon vapor pressure deficit data

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380734A1 (en) * 1988-02-16 1990-08-08 OCS, Inc. Greenhouse irrigation system based upon vapor pressure deficit data

Also Published As

Publication number Publication date
DK141312C (en) 1980-09-15
NO137301C (en) 1978-02-08
FI49667B (en) 1975-06-02
SE7509868L (en) 1976-03-15
FI49667C (en) 1975-09-10
NO753102L (en) 1976-03-16
DK141312B (en) 1980-02-25
NO137301B (en) 1977-10-31
DK409675A (en) 1976-03-14

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Legal Events

Date Code Title Description
BV The patent application has lapsed