scholarly journals IoT based Soil Quality Monitoring for An Efficient Irrigation

2021 ◽  
Vol 36 (2) ◽  
pp. 13-17
Author(s):  
Metuku Shyamsunder ◽  
V. Krishna Mohan
Keyword(s):  
Soil Moisture ◽  
User Interface ◽  
Soil Nutrients ◽  
Soil Samples ◽  
Quality Monitoring ◽  
Control Center ◽  
Multiple Sensors ◽  
Current Scenario ◽  
Soil Quality Monitoring ◽  
Macro Nutrients

The yield of agriculture primarily depends on the soil moisture, soil fertility and the use of suitable fertilizers. The method of manually measuring the soil nutrients is inaccurate in the current scenario due to laps between soil samples collected at the field and measuring in the laboratory. IoT has made changes in so many fields to monitor the data remotely despite of existing wireless technologies like Zigbee, GSM, etc. In this work an effort is made to collect the data related to various soil nutrients from agriculture filed using multiple sensors. Once the data is monitored and collected at the control center helps to apply a machine algorithms to take the appropriate decision for an efficient crop yield. In the proposed system, the sensors connected to the node at the field measures the macro nutrients of the soil, temperature and humidity of the soil. The nutrition majorly required for the growth of the plant is nitrogen (N), potassium (K), and phosphorous (P) amount present in the soil. In this work a microcontroller with WiFi is used to interface various sensors and display the measured value in the LCD. This application will provide a user interface to monitor the fertilizers, irrigation and humidity control.

scholarly journals Physico-Chemcial Parameters of Puducherry Soil and the Associated Mycoflora

2016 ◽  
Vol 5 (3) ◽  
pp. 115
Author(s):  
N. Arun ◽  
B. K. Nayak
Keyword(s):  
Soil Nutrients ◽  
Fungal Species ◽  
Vital Role ◽  
Soil Samples ◽  
Chemical Parameter ◽  
Macro And Micronutrients ◽  
Macro Nutrients

<div><p><em>The rhizosphere region is rich with the plenty of microorganisms. It may be either pathogenic or non-pathogenic to the plants and animals. Fungi were the ubiquitous organisms present in all types of habitats (</em><em>Ainsworth  et al., 1995).</em><em>They play a vital role in conversion of waste and degradation</em><em> (Diana 1994).</em><em>. There were the previous researchers so far explained more than million fungal species on earth (<strong>Barnett et al., </strong>1972). The physcio-chemical parameter was also analyzed. The soil samples were serially diluted and inocualted on the SDA plates.</em><em> </em><em>The</em><em> different species belongs to various groups of fungi such as Ascomycotina, Zygomycotina and Deuteromycotina were identified with the help of relevant literatures. A total of -- taxa belonging to -- genera were isolated, these include one species of Acomycetes, one species of Coelomycetes five species of Zygomycetes and remaining species were Deuteromycetes. Penicillium and species of Aspergillus were also recorded from samples. Basidiomycetes were also identified.  The macro nutrients such as N, P and K content were not rich in the samples. There is no proper record so far regarding the fungal in these soil areas along with the soil nutrients. </em><em>The present study is mainly focused on the mycoflora present in the rhizosphere regions of three different soil of puducherry region based on the macro and micronutrients present in the soil.</em></p></div>

HOW TO USE CROP GROWTH MODEL WOFOST FOR FORECASTING GROWTH AND YIELD OF A CROP

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
LAL SINGH ◽  
PARMEET SINGH ◽  
RAIHANA HABIB KANTH ◽  
PURUSHOTAM SINGH ◽  
SABIA AKHTER ◽  
...  
Keyword(s):  
User Interface ◽  
Graphical User Interface ◽  
Input Data ◽  
Growth And Yield ◽  
Weather Data ◽  
Data Sets ◽  
Crop Growth Model ◽  
Control Center ◽  
Field Crops ◽  
Crop Calendar

WOFOST version 7.1.3 is a computer model that simulates the growth and production of annual field crops. All the run options are operational through a graphical user interface named WOFOST Control Center version 1.8 (WCC). WCC facilitates selecting the production level, and input data sets on crop, soil, weather, crop calendar, hydrological field conditions, soil fertility parameters and the output options. The files with crop, soil and weather data are explained, as well as the run files and the output files. A general overview is given of the development and the applications of the model. Its underlying concepts are discussed briefly.

scholarly journals A Comparison of the Attributes of Pine Straw from Southern Pine Species

2021 ◽  
Vol 39 (3) ◽  
pp. 115-122
Author(s):  
Zachary Singh ◽  
Adam Maggard ◽  
Rebecca Barlow ◽  
John Kush
Keyword(s):  
Soil Moisture ◽  
Soil Temperature ◽  
Soil Properties ◽  
Soil Nutrients ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Pinus Elliottii ◽  
Slash Pine ◽  
Weed Growth ◽  
Pine Straw

Abstract Longleaf pine (Pinus palustris Mill.), and slash pine (Pinus elliottii Engelm.) are two southern pine species that are popular for producing pine straw for landscaping. The objective of this research was to determine the response of soil properties and weed growth to the application of pine straw. Longleaf pine, slash pine, and two non-mulched controls (with and without chemical weed control) were tested. Volumetric soil water content, soil nutrients, soil temperature, weed biomass, and seedling growth were measured. Compared to non-mulched controls, both longleaf and slash pine plots had a greater soil moisture during extended periods without rainfall in the full sun environment. When soil temperatures increased, mulched plots had lower soil temperature relative to non-mulched plots. Soil pH and soil nutrients were generally similar between pine straw types with few significant differences in measured variables. Both pine straw treatments reduced weed growth and longleaf pine maintained a greater straw depth over the study period compared to slash pine, but no differences were observed for decomposition. These results indicate that longleaf pine straw and slash pine straw perform equally as well in terms of increasing soil moisture, moderating soil temperature, and reducing weed growth compared to not using mulch. Index words: Pinus elliottii, Pinus palustris, organic mulch, soil properties, landscaping. Species used in this study: Shumard oak, Quercus shumardii Buckl., Eastern redbud, Cercis canadensis L.

scholarly journals The effect of invasive species Lantana Camara L. on soil nutrients at Ol-Donyo Sabuk National Park, Kenya

2020 ◽  
Vol 1 (1) ◽  
pp. 25-32
Author(s):  
M N Wekhanya ◽  
P. K. Mbugua ◽  
J. K. Mworia
Keyword(s):  
Soil Nutrients ◽  
National Park ◽  
Soil Samples ◽  
Lantana Camara ◽  
Preventive Strategy ◽  
Native Plant ◽  
Organic C ◽  
Anova Test ◽  
Significant Difference ◽  
Study Sites

The aim of this study was to establish whether the invasive plant Lantana camara L. alters the soil chemical properties at Ol-Donyo Sabuk National Park. The key objective was to evaluate the soil nutrient composition in areas invaded by L. camara and how these differ from areas without L. camara. Five study sites were selected by purposeful sampling, out of the existing 10 blocks. Soil samples were collected randomly from L. camara invaded areas and similarly from adjacent areas free from L. camara. The soil samples were subjected to determination of the following nutrients and parameters: pH, potassium (K), calcium (Ca) magnesium (Mg), total nitrogen (N), phosphorus (P), total organic carbon (TOC), manganese (Mn), copper (Cu), iron (Fe), zinc (Zn) and sodium (Na). The data obtained was analysed using Two-way ANOVA test to determine difference in nutrients composition in L. camara invaded and non-invaded areas. Three-way ANOVA test was used to gauge the interactions between wet and dry season, invaded and non-invaded areas and study sites. A post-ANOVA test, Tukey’s Honest Significant Difference was done to separate the means. The results from the study indicated L. camara invaded areas had a significant difference in pH, P, N, Mn, Fe and total organic C compared to the patches that had native plants and not invaded by L. camara. High pH also makes P to be more available to plants that is why P was high in the L. camara invaded areas. This study revealed that L. camara remarkably changes the concentration and balance of soil nutrients resulting to a change in chemistry of soil nutrients. This is in a bid to suit its survival to the detriment of the native plant species. This study is hence vital for designing an effective eradication and preventive strategy of L. camara in Ol-Donyo Sabuk National Park and other protected ecological habitats in Kenya.

scholarly journals Draft Requirement of Two Animal - Drawn Institute for Agricultural Research (IAR) Weeders

2020 ◽  
pp. 14-20
Author(s):  
Y. A. Unguwanrimi ◽  
A. M. Sada ◽  
G. N. Ugama ◽  
H. S. Garuba ◽  
A. Ugoani
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Bulk Density ◽  
Soil Moisture Content ◽  
Agricultural Research ◽  
Soil Samples ◽  
Soil Conditions ◽  
Experimental Plot ◽  
Moisture Contents ◽  
Loam Soil

Draft requirements of two animal – drawn (IAR) weeders operating on loam soil were determined in the study. The implements include a straddle row weeder and an emcot attached rotary weeder evaluated under the same soil conditions, using a pair of white Fulani breed of oxen. The animal draft requirement was first estimated from the animal ergonomics measurements. Using area of 0.054 hectare as experimental plot for each implement the draft requirement of each implement was investigated after taking soil samples for soil moisture content and bulk density determinations. The implements tested showed variation in their average draft requirement. The straddle row weeder had the highest value of 338.15 N respectively while the emcot attached rotary weeder had the lowest value of 188.12 N with 47.03%, respectively. The average soil moisture contents and bulk density were 13.0% and 1.46%/cm3, respectively.

scholarly journals Calibration of a soil moisture sensor with disturbed and undisturbed soil samples from Bahia

2018 ◽  
Vol 22 (10) ◽  
pp. 696-701
Author(s):  
João G. A. Lima ◽  
Aureo S. de Oliveira ◽  
Luciano da S. Souza ◽  
Neilon D. da Silva ◽  
Paula C. Viana
Keyword(s):  
Soil Moisture ◽  
Soil Samples ◽  
Calibration Data ◽  
Undisturbed Soil ◽  
Moisture Sensor ◽  
Soil Moisture Sensor ◽  
Disturbed Soil ◽  
Undisturbed Samples ◽  
Three Samples ◽  
Quadratic Models

ABSTRACT The objective of this study was to evaluate the models proposed by manufacturers and in the literature with respect to soil moisture measurement and to evaluate the performance of the CS616 sensor in the calibration of disturbed and undisturbed soil samples. These calibrations were performed using linear and quadratic models. Disturbed samples were collected in São Gabriel/BA, six samples placed in pots, whereas undisturbed samples were collected in Cruz das Almas/BA, three samples directly collected in the area and placed in a container. A calibration was performed between 21/12/2016 and 08/01/2017. The models proposed in the literature and by manufacturers differed in the estimation of volumetric soil moisture. Disturbed soil samples had higher data dispersion than undisturbed samples, due to factors such as grain size and bulk density, which influence the calibration data. The CS616 sensor had satisfactory performance in the calibration of disturbed and undisturbed samples, with excellent fit of the soil moisture data. Using soil moisture contents obtained by the CS616 sensor, without a previous calibration, may lead to errors in the results, confirming the need for a specific calibration for each type of soil.

Evaluation of Various Soil Moisture Sensors in Four Different Soil Types

2018 ◽  
Vol 34 (6) ◽  
pp. 963-971 ◽  
Author(s):  
Tonny José Araújo da Silva ◽  
Edna Maria Bonfim-Silva ◽  
Adriano Bicioni Pacheco ◽  
Thiago Franco Duarte ◽  
Helon Hébano de Freitas Sousa ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Moisture Content ◽  
Soil Samples ◽  
Soil Types ◽  
Coefficient Of Determination ◽  
Regression Analyses ◽  
Drying Method ◽  
Soil Moisture Sensors ◽  
Calibration Equations

Abstract.Accurate measurements of soil moisture content can contribute to resource conservation in irrigated systems. The objective of this study was to evaluate various soil moisture sensors (a porous cup tensiometer, Diviner 2000, PR2, XH300, PM100, and ML3; the mention of model names does not constitute an implied endorsement) used in four different soil types. The experiment was conducted inside a greenhouse using a specially constructed box that contained the soil samples. The soil samples were first saturated and subsequently drained before starting the measurements. The soil moisture content was determined by the oven-drying method. Using the standard deviation of the sensor readings, regression analyses were performed, resulting in calibration equations and coefficient of determination (R2) values for each sensor and soil type combination. The porous cup tensiometer, Diviner 2000, PR2, and ML3 measurements resulted in excellent R2 values that exceeded 0.95 for the four soils. However, measurements with the XH300 and PM100 sensors resulted in R2 values of 0.37 to 0.86 and 0.61 to 0.94, respectively, limiting their scientific applicability for the studied soils. Therefore, the porous cup tensiometer, Diviner 2000, PR2, and ML3 estimated the soil moisture content with greater confidence than did the other sensors and with an error of less than 5%. Keywords: Calibration, Tensiometer, Volumetric water content.

Environmental factors controlling the distribution of forbs on coastal foredunes in Cape Hatteras National Seashore

1974 ◽  
Vol 52 (5) ◽  
pp. 1057-1073 ◽  
Author(s):  
A. G. van der Valk
Keyword(s):  
Soil Moisture ◽  
Environmental Factors ◽  
Soil Nutrients ◽  
Experimental Work ◽  
Salt Spray ◽  
Cape Hatteras ◽  
Soil Temperatures ◽  
Cape Hatteras National Seashore ◽  
Shifting Sand ◽  
Coastal Foredunes

Shifting sand, which either buries the seeds or seedlings of dune forbs or carries them away, is responsible for the absence of forbs on the front of the foredune and in other zones accumulating sand regularly. Experimental work with the seedlings of six dune forbs showed that they can withstand burial by no more than 5 cm of sand and that their seeds can survive burial under only 1 to 16 cm, depending on the species. At least 20 to 30 cm of sand normally accumulates each winter in a zone subject to regular sand deposition. Salt spray plays a secondary role in preventing the establishment of forbs on the front of the foredune. It is responsible for the elimination of species which may occasionally escape burial during the winter months and which happen to be susceptible to salt spray injury. Measurements of soil moisture, soil nutrients, and soil temperatures indicate that these factors differ only slightly on the front, top, and back of the foredune. These three factors, then, appear to have little influence on the distribution of the forbs.

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