Development and testing results of IoT based air temperature and humidity measurement system for industrial greenhouse

Avotiņš, Ansis; Apse-Apsītis, Pēteris; Bicans, Janis; Gruduls, J.

doi:10.15159/ar.18.141

Cited by 4 publications

(1 citation statement)

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“…During transpiration, the relative humidity level becomes saturated. As a result, plants halt transpiration and nutrient uptake from the soil or growing media at high relative humidity levels where there is a lack of air circulation, resulting in gradual rotting in cases of long-term humidity saturation (Han et al, 2019;Avotins et al, 2018;Amani et al, 2020).…”

Section: Beach Casuarina Plant Heightmentioning

confidence: 99%

use of the biopore technique to improve soil quality and the growth of beach Casuarina plants on the reclaimed former tin mine land in Bangka Belitung Islands

Nugraha,

Akbar,

Jumiati

2024

J. Degrade. Min. Land Manage.

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The tin mining process removes soil layers so that the soil becomes dry and nutrient-poor. Reclamation of tin mining in Selingsing, Gantung Sub-district, Belitung Timur Regency, Bangka Belitung Islands Province has been carried out through revegetation using beach Casuarina plants, but plant growth is slow. On of the efforts that can be made to improve plant growth to restore land and forest conditions is using the biopore technique combined with organic litter and bioactivator solution. This study was therefore aimed to elucidate the effect of the biopore technique on soil quality and the growth of beach Casuarina on the reclaimed former tin mine land. Treatments tested were the use of bamboo biopores and without the use of bamboo biopores, with five replications in each treatment. The effect of variation was measured based on nitrogen, phosphorus, potassium, and lead contents in the root zone and plant growth (plant height and diameter). The results showed that compared to those without biopore treatment, the biopore treatment significantly increased nitrogen, phosphorus, and potassium contents by 0.67%, 2.12%, and 19%, respectively. The organic component of biopore treatment influenced the formation of metal bonds, as indicated by a decrease in lead content by 0.35%. The best plant height of 42 cm was observed in the treatment without biopore, and the best plant diameter of 2.9 cm was in the biopore treatment.

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Section: Beach Casuarina Plant Heightmentioning

confidence: 99%

use of the biopore technique to improve soil quality and the growth of beach Casuarina plants on the reclaimed former tin mine land in Bangka Belitung Islands

Nugraha,

Akbar,

Jumiati

2024

J. Degrade. Min. Land Manage.

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Advanced dew-point control system in two-pressure humidity generator to stabilize dew-point generation in low dew-point range

Ishiwata

Abe

2022

AIP Advances

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We developed a novel dew-point control system [advanced dew-point control system (ADCS)] in a primary standard humidity generator based on the two-pressure technique. In the ADCS, the actual vapor–liquid equilibrium temperature of water was estimated for the dew-point control, and the pressure inside the main saturator was controlled by adjusting the variable opening of an expansion valve. Using the ADCS, the periodic variation (oscillation) in the dew point observed in the low dew-point range was greatly reduced. The stability of dew-point generation was improved by 23-fold.

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Experimental analysis of IoT based camera SI-NDVI values for tomato plant health monitoring application

Avotiņš¹,

Kviesis²,

Bicans³

et al. 2020

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Development and testing results of IoT based air temperature and humidity measurement system for industrial greenhouse

Cited by 4 publications

References 0 publications

use of the biopore technique to improve soil quality and the growth of beach Casuarina plants on the reclaimed former tin mine land in Bangka Belitung Islands

use of the biopore technique to improve soil quality and the growth of beach Casuarina plants on the reclaimed former tin mine land in Bangka Belitung Islands

Advanced dew-point control system in two-pressure humidity generator to stabilize dew-point generation in low dew-point range

Experimental analysis of IoT based camera SI-NDVI values for tomato plant health monitoring application

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