Hand Held Device for Detection of Pesticides using NDVI

Singh, Tejkanwar; Singh, Mandeep

doi:10.5120/ijca2016912226

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…For instance, an IoT-based automated system was developed that can quickly, efficiently, and with high accuracy identify and distinguish between monocotyledonous, dicotyledonous, and smaller weeds, using 350 images [36]. The normalized difference vegetation index (NDVI) is a commonly used technology within the agricultural industry to measure plant health with the GreenSeeker 505 active remote sensor [37].…”

Section: Of 19mentioning

confidence: 99%

Effect of Different Herbicides on Development and Productivity of Sweet White Lupine (Lupinus albus L.)

Juhász,

Mendler-Drienyovszki,

Magyar-Tábori

et al. 2024

Agronomy

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White lupine (Lupinus albus L.) is a well-known green manure crop in Hungary, but the production of seeds can be badly impacted by weeds. The sweet white lupine ‘Nelly’ was grown on acidic sandy soil, and experimental plots were treated with different herbicides. Flumioxazin (0.06 kg ha−1), pendimethalin (5 L ha−1), dimethenamid-P (1.4 L ha−1), pethoxamid (2 L ha−1), clomazone (0.2 L ha−1), metobromuron (3 L ha−1), and metribuzin (0.55 L ha−1) were applied pre-emergence (1–2 days after sowing). Imazamox was also tested and applied post-emergence (1 L ha−1) when some basal leaves were clearly distinct (BBCH 2.3). In this paper, the weed control efficiency and the phytotoxicity of herbicides applied to lupine are examined. Vegetation index datasets were collected 12 times using a manual device and 2 times using an unmanned aerial vehicle (UAV). The phytotoxicity caused by herbicides was visually assessed on several occasions throughout the breeding season. The frequency of weed occurrence per treatment was assessed. The harvested seed yields, in kg ha−1, were analyzed after the seeds were cleaned. The herbicides metribuzin and imazamox caused extensive damage to white lupine. While pendimethalin, dimethenamid-P, pethoxamid, and clomazone were outstanding in several measured indicators, the final ranking which summarizes all the variables showed that only the pethoxamid and clomazone treatments performed better than the control. Metribuzin and imazamox were highly phytotoxic to white lupine. In the future, it would be appropriate to integrate more post-emergence active substances into trials, and the pre-emergence herbicides involved in this study should be further tested.

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Section: Of 19mentioning

confidence: 99%

Effect of Different Herbicides on Development and Productivity of Sweet White Lupine (Lupinus albus L.)

Juhász,

Mendler-Drienyovszki,

Magyar-Tábori

et al. 2024

Agronomy

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“…With an increase in terrorist activities worldwide, trace detection of explosive materials has become extremely important for taking preventive and corrective measures. There is a growing demand for a fast and reliable technology for chemical detection and estimation of dielectric properties of such materials [1, 2 ]. Spectral imaging is rapidly gaining acceleration in this field over other techniques [3 ].…”

Section: Introductionmentioning

confidence: 99%

Spectral imaging using compressive sensing‐based single‐pixel modality

2020

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Spectral imaging technique plays a very vital role in the field of chemical detection and identification. Conventional spectroscopic imaging techniques suffer from massive acquisition time. This limitation sometimes restricts it from many practical applications. The acquisition of a full spectral image requires huge acquisition time. In this Letter, a compressive sensing‐based single‐pixel camera architecture has been realised to acquire spectral images that can be used for non‐destructive testing and classification of explosive materials. The compressive measurements for all the spectral images are done simultaneously thus reducing the acquisition time significantly. The spectro‐spatial images were reconstructed using the basis pursuit algorithm and compared with least square solutions, which resulted in fast acquisition and improved image quality. The maximum compression rate achieved was 95.84%.

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