Design of a system for acquiring and measuring thermal, hydric, chemical and mineralogical properties of cultivated land, ambient temperature and relative humidity

Sahi Roland DIOMANDE, Kouame Norbert N GUESSAN, Edoe Fernand MENSAH, Yao N GUESSAN

Data acquisition system, soil calcium content, soil pH, soil phosphorus content, soil nitrogen content.

The lack of reliable information on the properties of agricultural land in real situations and in real time drives up the cost of equipment and measurement techniques. This creates real problems for growers in managing land, water and crop nutrient resources. To give every grower the chance to have accurate information about his farming environment that could help him achieve a good yield, we designed a system for acquiring temperatures, soil and ambient air humidities, phosphorus, calcium and nitrogen contents, electrical conductivity and hydronium potential of cultivated land, and carried out measurements in the Sikensi region over the course of a week. Arduino Uno technology using JXBS-3001-SCY-PT soil sensors is employed. The results showed that the acquisition system designed was simplified and could be implemented by anyone at a low cost. Experimental results showed that mineral content, pH and soil moisture are higher in the subsurface than at depth. In the first 20 cm, calcium content ranged from 6 to 56 mg/kg, with an average of 27.89 mg/kg; nitrogen content varied from 2 to 18 mg/kg, with an average of 9.67 mg/kg; phosphorus content varied from 3 mg/kg to 23 mg/kg, with an average of 12.78 mg/kg; pH varied from 5.40 to 7.46, with an average of 6.25 mg/kg; electrical conductivity varied from 9 to 253, with an average of 157.67; and soil temperature rose from 23.84°C to 29.1°C. Ambient temperature ranged from 25°C to 35°C, with an average of 28.40°C, while relative humidity varied from 50% to 90%, with an average of 75.63%.

https://dx.doi.org/10.31873/IJEAS.11.12.03