Proposed Model of STEM Associated with Social Issues: Case Study on Tapioca Drip Irrigation System

The drip irrigation system cost can be reduced effectively by using optimal design methods and decreasing the system pressure. In this paper, a two-stage optimum drip irrigation lateral design model is developed based on a new uniformity formula that includes hydraulic variation, emitter manufacture’s variation, and field roughness variation. The non-linear objective function minimizes the capital cost and the present values of the lateral operating cost. In the first stage, the pipe diameter and the emitter average pressure are taken as decision variables for the specified uniformity and lateral length. In the second stage, a commercially available pipe size that is very close to the diameter obtained in the first stage is selected. It has an allowable pressure that is a little more than or equal to 1.5 times of the maximum lateral pressure obtained in the first stage. The emitter average pressure is calculated for a known diameter. The model is applied to a case study in which the result indicates that a lateral with a larger diameter and the lower emitter average pressure can be economically justifiable. A drip irrigation system with a lower pressure should be developed on the basis of this study.

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Analysis of water consumption of a drip irrigation system compared with sprinkler installation: a case study in Sicily (Italy)

Sustainable Irrigation and Drainage IV ◽

10.2495/si120121 ◽

2012 ◽

Author(s):

M. L. Deangelis ◽

G. Negrini

Keyword(s):

Water Consumption ◽

Drip Irrigation ◽

Irrigation System ◽

Drip Irrigation System

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Economics of Sugarcane and Banana Cultivation under Drip Irrigation System: A Case Study of Northern Maharashtra

Economic Affairs ◽

10.46852/0424-2513.2.2020.3 ◽

2020 ◽

Vol 65 (2) ◽

Author(s):

Subrata Gorain

Keyword(s):

Drip Irrigation ◽

Irrigation System ◽

Drip Irrigation System ◽

System A

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ESTIMATION OF CONSUMPTIVE USE OF POTATO CROP PIANTED UNDER DRIP IRRIGATION SYSTEM BY USING SWRT TECHNOLOGY

Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN 2077-5822 E-ISSN 2617-1479) ◽

10.33794/qjas.vol10.iss1.109 ◽

2020 ◽

Vol 10 (1) ◽

pp. 271-282

Author(s):

J.N. Abedalrahman ◽

R.J. Mansor ◽

D.R. Abass

Keyword(s):

Water Consumption ◽

Drip Irrigation ◽

Soil Depth ◽

Irrigation System ◽

Potato Crop ◽

Block Design ◽

Organic Fertilizer ◽

Control Treatment ◽

Drip Irrigation System ◽

Spring Season

A field experiment was carried out in the field of the College of Agriculture / University of Wasit, located on longitude 45o 50o 33.5o East and latitude 32o 29o 49.8o North, in Spring season of the agricultural season 2019, in order to estimate the water consumption of potato crop using SWRT technology and under the drip irrigation system. The experiment was designed according to Randomized Complete Block Design (RCBD) with three replications and four treatments that include of the SWRT treatment (the use of plastic films under the plant root area in an engineering style), and the treatment of vegetal fertilizer (using Petmos), organic fertilizer (sheep manure), and the control treatment . Potato tubers (Solanum tuberosum L.) var. Burin was planted for spring season on 10/2/2019 at the soil depth of 5-10 cm. The highest reference water consumption for the potato crop during the season was calculated by Najeeb Kharufa, which was 663.03 mm. The highest actual water consumption for the potato crop during the season for the control treatment was 410.1 mm. The results showed increase in the values of the crop coefficient (Kc) in the stages of tubers formation and tubers filling stage as compared to the vegetative and ripening stages, ranged from 1.37-1.92 for the two stages of tubers formation and tubers filling. The SWRT treatment gave the highest water use efficiency during the season, was 3.46 kg m-3 .

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