公开(公告)号：US06444975B1

公开(公告)日：2002-09-03

申请号：US09530768

申请日：2000-06-23

Applicant: Stefan Reusch

Inventor： Stefan Reusch

IPC: H01J4014

CPC classification number: A01C17/008 ,  A01C21/007 ,  G01N21/3563 ,  G01N21/359

Abstract: A method of partial area-specific-fertilization of plants which, under natural light during the fertilizer application, the chlorophyll content of the plants is ascertained by means of sensors by optical reflection measurement in the visible and near infrared spectral range, the chlorophyll content is registered and from the chlorophyll content a measurement of the nutrient state of the plant is determined and from the nutrient state of the plants a computer controls the fertilizer quantity to be applied, characterized in that the reflection measurements are taken simultaneously as inclined measurements with respect to the nadir with measurement devices oriented oppositely to one another free from shadows with light guides an the influence of the solar azimuth angle is eliminated by detecting the noise signals from all measurement directions.

Abstract translation: 植物的部分面积特异性施肥方法，在施肥期间的自然光下，植物的叶绿素含量通过光学反射测量在可见光和近红外光谱范围内的传感器确定，叶绿素含量为 从叶绿素含量测定植物的营养状态的测定，并且从植物的营养状态计算机控制要施用的肥料量，其特征在于反射测量同时作为相对于 具有彼此相反的测量装置的最低点没有光导的阴影，通过从所有测量方向检测噪声信号来消除太阳方位角的影响。

公开(公告)号：USD574951S1

公开(公告)日：2008-08-12

申请号：US29239806

申请日：2005-10-04

Applicant: Stefan Reusch

Designer： Stefan Reusch

公开(公告)号：USD583929S1

公开(公告)日：2008-12-30

申请号：US29299690

申请日：2008-01-02

Applicant: Stefan Reusch

Designer： Stefan Reusch