Soil Moisture based Automatic Irrigation System to Improve Water Productivity

2020 ◽  
Vol 7 (04) ◽  
Author(s):  
PRADEEP H K ◽  
JASMA BALASANGAMESHWARA ◽  
K RAJAN ◽  
PRABHUDEV JAGADEESH

Irrigation automation plays a vital role in agricultural water management system. An efficient automatic irrigation system is crucial to improve crop water productivity. Soil moisture based irrigation is an economical and efficient approach for automation of irrigation system. An experiment was conducted for irrigation automation based on the soil moisture content and crop growth stage. The experimental findings exhibited that, automatic irrigation system based on the proposed model triggers the water supply accurately based on the real-time soil moisture values.

2020 ◽  
Vol 20 (8) ◽  
pp. 3722-3729
Author(s):  
Ling Zhou

Abstract In order to develop a water-saving irrigation system for spring wheat, field experiments were conducted on the deficit irrigation of spring wheat in Hetao Irrigation District, Inner Mongolia. Through measurement of soil moisture content, the spring wheat growth and yield index, the influences of deficit irrigation on soil moisture distribution and spring wheat growth were studied. Results showed that, in the soil layers 0–100 cm below the ground, the soil moisture content under full irrigation at 100% ETc (ETc denotes actual water demanded by crops) and that under deficit irrigation at 80% ETc increased with the increase of soil layer depth; specifically, soil moisture under deficit irrigation at 60% ETc was mainly distributed in the subsurface layer (20–40 cm) and the middle layer (40–60 cm). The spring wheat yield was not greatly influenced by the deficit irrigation at 80% ETc, showing a decrease of merely 5–13% compared with that under full irrigation, while deficit irrigation at 60% ETc had greater impact on the growth and yield of spring wheat, cutting the yield by 10–37% in comparison with that under full irrigation. In the study area, the deficit irrigation treatment at 80% ETc was adopted, wherein the irrigation norm in the growth period was 288 mm. This irrigation system had little adverse impact on spring wheat growth and yield, and therefore, water-saving irrigation could be realized.


Author(s):  
TM Lebiso ◽  
MM Mada

Scarcity of water is the most severe constraint for sustainable development of agriculture in arid and semi-arid areas. Hence, novel irrigation water application systems need to be developed so that high crop yield and water productivity per unit of land can be increased. Thus, the field experiment was conducted with the objective of determining the effect of different soil moisture depletion levels on yield and water use efficiency of sorghum crop in Benna-Tsemay woreda at Enchete kebele, Southern Ethiopia. The experiment was conducted for two consecutive years (2019-2020). It was arranged in RCBD with three replications and treatment was rated for five levels of available soil moisture depletion (ASMD), where T1 = 60%, T2 = 80%, T3 = 100%, T4 = 120%, and T5 = 140% of ASMD. Analysis of variance has shown that yield and water use efficiency of sorghum crop was significantly (P < 0.05) affected by irrigation scheduling. As observed in this study, the most economically attractive and environmentally accepted for small scale farmers with tolerable cost of production and higher net benefit was obtained by application of T3 (100% ASMD) under conventional furrow irrigation system. Therefore, for this particular sorghum crop (teshale variety), it could be concluded that increased water saving and water productivity through irrigation at 100% ASMD under conventional furrow irrigation system can solve the problem of water shortage and would ensure the opportunity of further irrigation development in the study area and similar agro-ecology. Int. J. Agril. Res. Innov. Tech. 11(2): 95-102, Dec 2021


2016 ◽  
Vol 8 (4) ◽  
pp. 1959-1965 ◽  
Author(s):  
Jitendra Kumar ◽  
Neelam Patel ◽  
T. B. S. Rajput

Soil moisture sensor is an instrument for quick measurements of soil moisture content in the crop root zone on real time basis. The main objective of this research was development and evaluation of an indigenous sensor for precise irrigation scheduling. The various parts of sensor developed were ceramic cup, acrylic pipe, level sensor, tee, reducer, gland, cork, and end cap. The designed system was successfully tested on okra crop and calibrated with frequency domain reflectometry (FDR) by three methods of irrigation, i.e. check basin, furrow and drip, respectively. The average depth of water depletion in modified tensiometer by these methods was 27 to 35 cm at 50% management allowable depletion (MAD) of field capacity. This depth was useful for the level sensor to be installed inside modified tensiometer for real time irrigation scheduling. The correlation coefficient (R2) between soil moisture content obtained from the developed sensor and FDR was 0.963. Sensor network was integrated with global system for mobile communication (GSM), short message service (SMS) and drip head work to develop an automated irrigation system. This would enable farmers to effectively monitor and control water application in the field by sending command through SMS and receiving pumping status through the mobile phone.


IJIREEICE ◽  
2015 ◽  
pp. 96-98
Author(s):  
NAGARAJAPANDIAN M ◽  
RAM PRASANTH U ◽  
SELVA KUMAR G ◽  
TAMIL SELVAN S

2008 ◽  
Vol 35 (2) ◽  
pp. 116-122 ◽  
Author(s):  
V. Choppakatla ◽  
T. A. Wheeler ◽  
G. L. Schuster ◽  
C. Robinson ◽  
D. O. Porter

Abstract Pod rot is a problem on peanut in West Texas and many other areas. Crop consultants scouting fields assume that pod rot will be more severe in high moisture areas of the field, and therefore bias the intensity of their sampling to those areas. The objective of this research was to evaluate the relationship between soil moisture and pod rot incidence in irrigated fields. Studies were conducted in four fields located in Yoakum County, TX in 2002 and 2003. Surface soil moisture (0 to 12 cm in depth) was measured at 5 min and 24 hr after the center pivot irrigation system passed from each sampling point (20 to 34 points/field). Three plant samples were collected at each point in August and October, and were evaluated for pod rot incidence. In one field where Pythium spp., but not Rhizoctonia spp. was isolated from rotted pods, pod rot incidence in August was negatively correlated with soil moisture at 5 min (r  =  −0.41, P  =  0.04, n  =  25) and 24 hr (r  =  −0.43, P  =  0.03, n  =  25). No correlations between disease and soil moisture in the other three fields was found. Results from these studies suggest that pod rot associated with Pythium spp., or Pythium spp. and Rhizoctonia spp., is not greater in wetter areas of irrigated peanut fields. A comprehensive approach to sampling, irrespective of soil moisture content, is essential for accurate estimation of pod rot.


Author(s):  
Mr. V. Seetha Rama

Automation of farm activities can transform agricultural domain from being manual and static to intelligent and dynamic leading to higher production with lesser human supervision. This paper proposes an automated irrigation system which monitors and maintains the desired soil moisture content via automatic watering. Microcontroller ATMEGA328P on Arduino Uno platform is used to implement the control unit. The setup uses soil moisture sensors which measure the exact moisture level in soil. This value enables the system to use appropriate quantity of water which avoids over/under irrigation. IOT is used to keep the farmers updated about the status of sprinklers. Information from the sensors is regularly updated on a webpage using GSM-GPRS SIM900A modem through which a farmer can check whether the water sprinklers are ON/OFF at any given time. Also, the sensor readings are transmitted to a Thing speak channel to generate graphs for analysis.


Author(s):  
Naman Tripathi

This paper deals with the one of the various innovative ways to irrigate a field or water the plants using solar power. Irrigation is needed in the fields or farms where is less availability of water , since agriculture plays one of the most vital role in increasing or decreasing our country’s economy . An improvising system is needed in order to ensure not even healthy growth of the plant’s but also reduction of the amount of water wasted during such activities. So, this project signifies a Smart solar irrigation system using Arduino, this project helps in opening and closing the water supply according to the moisture level in the soil and the moisture level in soil is calculated by the help of soil moisture sensor which is one of the most important component in this project. The smart solar irrigation system will have zero electricity cost as whole project runs on solar energy beside that it is a farmer-friendly project helps in reduction of cost of the men required in the field to irrigate and most importantly reduces the amount of water wasted in irrigation of the fields.


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