LIGHTING ENVIRONMENT CONTROL FACILITY FOR CULTIVATION OF CROPS, PEST CONTROL METHOD, AND INTENSIVE CULTIVATION METHOD
First Claim
1. A lighting environment control facility for cultivation of crops, which is used for pesticide-free cultivation, the lighting environment control facility comprising:
- a crop cultivation house which is formed of a light transmissive material and in which crops are cultivated; and
a lighting control means for adjusting light to be irradiated on the crops in the crop cultivation house, whereinwhen spectral radiance of a wavelength range of blue light is denoted by B0, spectral radiance of a wavelength range of red light is denoted by R0, and spectral radiance of a wavelength range of far-red light is denoted by FR0 among the light to be irradiated on the crop cultivation housethe lighting control means adjusts spectral radiance (B1) of a wavelength range of blue light, spectral radiance (R1) of a wavelength range of red light, and spectral radiance (FR1) of a wavelength range of far-red light among the light to be irradiated on the crops in the crop cultivation house so thata ratio of R1/B1 becomes greater than a ratio of R0/B0, and a value (RBaV) obtained by subtracting the ratio of R0/B0 from the ratio of R1/B1 is greater than RBaV when the lighting control means is not installed, anda ratio of R0/FR0 is greater than a ratio of R1/FR1, and a value (RFRaV) obtained by subtracting the ratio of R1/FR1 from the ratio of R0/FR0 is greater than RFRaV when the lighting control means is not installed.
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Accused Products
Abstract
Disclosed are: a lighting environment control facility capable of controlling light to be irradiated on cultivated crops to an optimum condition for the growth of the crops, thereby activating a natural defense of the crops against pests; a pest control method capable of determining whether or not to control pests of cultivated crops and controlling the pests on the basis of the determination; and an intensive cultivation method. The facility is used for pesticide-free cultivation, and includes a crop cultivation house which is formed of a light transmissive material and in which crops are cultivated, and a lighting control unit that controls the light to be irradiated upon the crops in the crop cultivation house. The lighting control unit is adapted to control spectral radiance (B1) of a wavelength range of blue light, spectral radiance (R1) of a wavelength range of red light, and spectral radiance (FR1) of a wavelength range of far-red light among the light to be irradiated on the crops that are cultivated in the crop cultivation house so as to be a predetermined condition.
34 Citations
35 Claims
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1. A lighting environment control facility for cultivation of crops, which is used for pesticide-free cultivation, the lighting environment control facility comprising:
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a crop cultivation house which is formed of a light transmissive material and in which crops are cultivated; and a lighting control means for adjusting light to be irradiated on the crops in the crop cultivation house, wherein when spectral radiance of a wavelength range of blue light is denoted by B0, spectral radiance of a wavelength range of red light is denoted by R0, and spectral radiance of a wavelength range of far-red light is denoted by FR0 among the light to be irradiated on the crop cultivation house the lighting control means adjusts spectral radiance (B1) of a wavelength range of blue light, spectral radiance (R1) of a wavelength range of red light, and spectral radiance (FR1) of a wavelength range of far-red light among the light to be irradiated on the crops in the crop cultivation house so that a ratio of R1/B1 becomes greater than a ratio of R0/B0, and a value (RBaV) obtained by subtracting the ratio of R0/B0 from the ratio of R1/B1 is greater than RBaV when the lighting control means is not installed, and a ratio of R0/FR0 is greater than a ratio of R1/FR1, and a value (RFRaV) obtained by subtracting the ratio of R1/FR1 from the ratio of R0/FR0 is greater than RFRaV when the lighting control means is not installed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 31)
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12. A pest control method comprising:
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a process of measuring spectral radiance of a wavelength range of red light (R), spectral radiance of a wavelength range of blue light (B), and spectral radiance of a wavelength range of far-red light (FR) in a cultivation environment of target crops as the red light (R), the blue light (B), and the far-red light (FR), respectively; a process of measuring the spectral radiance of the wavelength range of the red light, the spectral radiance of the wavelength range of the blue light, and the spectral radiance of the wavelength range of the far-red light in a bare field as bare-field red light (R0), bare-field blue light (B0), and bare-field far-red light (FR0), respectively; a process of calculating a difference between a ratio of the bare-field red light (R0) to the bare-field blue light (B0) and a ratio of the red light (R) to the blue light (B) as an R/B difference (RBaV); and a process of calculating a difference of a ratio of the bare-field red light (R0) to the bare-field far-red light (FR0) from a ratio of the red light (R) to the far-red light (FR) as an R/FR difference (RFRaV), wherein respective values of the R/B difference and the R/FR difference are calculated using the bare field as a criterion, thereby determining whether or not to control pests of the target crops, and the crops are cultivated on a condition that the R/B difference and the R/FR difference become predetermined values. - View Dependent Claims (22, 30, 32, 33, 34, 35)
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Specification