Jiangsu University

Jiheng Ni

Hanping Mao

Zhiyu Zuo

Xiaodong Zhang

Yixue Zhang

Hongyan Gao

Baijing Qiu

Hongtao Zhang

Tianyuan Lv

Qinglin Li

Lijuan Qin

Xuewei Zhang

Fang Zhang

An apparatus for monitoring comprehensive growth condition of potted lettuce consists of a polarized hyperspectral imaging system and a 3D laser scanning system. The polarized hyperspectral imaging system includes a control system, a dual-coordinate sample holder, an image acquisition system, and a light source system, and the polarized hyperspectral imaging system detects water and fertilizer stress in lettuce by polarized hyperspectral multi-dimensional reflection imaging of characteristics on a canopy/leaf scale. The 3D laser scanning system detects morphological characteristics such as the biomass, stem diameter, plant height, and leaf area of lettuce. The method includes: step 1: culturing samples: cultivating the potted lettuce under a water stress, and under a nitrogen stress and water stress; step 2: acquiring morphological data of an entire lettuce plant; step 3: processing and analyzing data; step 4: correcting a model by using a water compensation factor; step 5: establishing a multi-characteristic integration model.

Method and device for monitoring comprehensive growth of potted lettuce

A testing device for integrated irrigation and disinfection includes a centrifugal pump, pressure sensors, flow sensors, an ion concentration sensor, and a control system. The testing device has comprehensive functions of fertilization, spray and drip irrigation load simulation, water and fertilizer parameter detection, fertilizer absorbing channel parameter detection and backflow channel parameter detection. The detection of nutrient ion concentration in a nutrient solution is combined with the aspects of irrigation, dynamic preparation of a nutrient solution and disinfection of a nutrient solution, to realize a high-precision dynamic preparation of a nutrient solution and irrigation area load simulation, and satisfy the requirements on a test system during a research and development process of an irrigation and fertilization system. The testing device is applicable to the research on the techniques and the development of a system for precise irrigation and accurate preparation of a nutrient solution in the field of facility agriculture.

Testing device for integrated irrigation and disinfection

Growing community of inventors

Jiangsu, China

Jiheng Ni