发明名称 |
GREENHOUSE IRRIGATION SYSTEM BASED UPON VAPOR PRESSURE DEFICIT DATA |
摘要 |
GREENHOUSE IRRIGATION SYSTEM BASED UPON VAPOR PRESSURE DEFICIT DATA A system for controlling environmental conditions including irrigation or misting in greenhouses having a plurality of crop beds within one greenhouse enclosure. Aspirated enclosures have associated temperature sensors for measuring dry bulb temperature and humidity, the temperature of a surface over the bed and also a sensor of incident light over the bed. A computer is programmed with a task for inputting temperature data and for calculating the vapor pressure deficit over each bed and for inputting incident light data for measuring a parameter indicative of physiological crop age. A task establishes times for supply of water based upon the gathered data. |
申请公布号 |
CA1303183(C) |
申请公布日期 |
1992.06.09 |
申请号 |
CA19890607075 |
申请日期 |
1989.07.31 |
申请人 |
OCS, INC. |
发明人 |
OGLEVEE, JAMES R.;OGLEVEE, KIRK A. |
分类号 |
A01G9/26 |
主分类号 |
A01G9/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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