| 水培番茄施钾量诊断模型 |
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| 引用本文： | 韩小平,左月明,宋海燕,杨威,冯俊惠. 水培番茄施钾量诊断模型[J]. 农业工程, 2016, 6(2): 120-123. DOI: 10.3969/j.issn.2095-1795.2016.02.037 |
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| 作者姓名： | 韩小平 左月明 宋海燕 杨威 冯俊惠 |
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| 作者单位： | 山西农业大学工学院,太谷030801 |
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| 基金项目： | 旱作农业机械关键技术与装备山西省重点实验室基金(20130602) |
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| 摘 要： | 探讨了不同施钾水平下水培番茄叶片光谱信息的变化规律,建立了基于水培番茄叶光谱信息施钾量的预测模型。研究表明:不同施钾水平下水培番茄叶片的光谱信息在整个测试范围（350～2 500 nm）内的变化规律比较复杂,在可见光波段469～743 nm和近红外波段743～1 392 nm、1 500～1 785 nm,高水平和低水平钾的叶片光谱反射率均低于正常养分的光谱反射率;在1 450 nm处,番茄叶片的光谱反射率随着施钾量的增加而增大。
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| 关 键 词： | 水培番茄 光谱信息 施钾量 预测模型 |
Diagnostic Model of Fertilization Kalium Content in Hydroponic Tomato |
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| Han Xiaoping,Zuo Yueming,Song Haiyan,Yang Wei and Feng Junhui. Diagnostic Model of Fertilization Kalium Content in Hydroponic Tomato[J]. Agricultural Engineering, 2016, 6(2): 120-123. DOI: 10.3969/j.issn.2095-1795.2016.02.037 |
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| Authors: | Han Xiaoping Zuo Yueming Song Haiyan Yang Wei Feng Junhui |
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| Abstract: | Spectral information change rule of hydroponic tomato leaves under different fertilization kalium level was explored.Prediction model of fertilization kalium content was established based on spectral information of hydroponic tomato leaves.Results showed that it was complicated that spectral information of hydroponic tomato leaves within 350～2 500 nm range.Reflectivity of hydroponic tomato leaves under high and low kalium level was lower than normal in visible light waves（469～743 nm）and in near infrared waves（743～1 392 nm and 1 500～1 785 nm）.Reflectivity of hydroponic tomato leaves was increasing with the amount of fertilization kalium content going up in the wave of 1 450 nm. |
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