发明名称 |
VERFAHREN UND VORRICHTUNG ZUM SELBSTTÄTIGEN ZUFÜHREN VON FLÜSSIGEN NÄHRMITTELN AN PFLANZEN |
摘要 |
The present invention relates to a method and a device for automatic administration of liquid nutrients to plants (5), wherein said plants (5) are placed on an absorbent substrate (2) that has been placed in a tray (1) which is provided with at least one discharge (3), wherein said method comprises the following steps: a) administration of a quantity of nutrients to the substrate (2), b) determination of the weight of the tray (1). The method according to the present invention is characterised in that: c) calibration is carried out by determining the saturation level of the substrate (2) and taking the weight of the tray (1) and the contents thereof at the point in time when the saturation level is reached as the calibration weight; d) a threshold value for the weight of the tray (1) and the contents thereof is determined on the basis of the calibration weight determined in c); e) a specific quantity of nutrients is administered when said weight falls below the threshold value. |
申请公布号 |
DE69904568(T2) |
申请公布日期 |
2003.07.31 |
申请号 |
DE1999604568T |
申请日期 |
1999.02.22 |
申请人 |
PRODRAIN, IJSSELMUIDEN |
发明人 |
HEIDA, ROELOF;RODENBURG, MARINUS;VAN DRIEL-VERMAAS, BASTIAANTJE;WEZENBERG, HERMANES |
分类号 |
A01G27/00;A01G31/02 |
主分类号 |
A01G27/00 |
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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