Energy Savings and Irrigation Performance of a Modified Center Pivot Irrigation System

1994 ◽  
Vol 10 (1) ◽  
pp. 27-36 ◽  
Author(s):  
V. F. Bralts ◽  
S. R. Pandey ◽  
A. Miller
Keyword(s):  
Energy Savings ◽  
Irrigation System ◽  
Irrigation Performance ◽  
Center Pivot

Uphoff Norman, Priti Ramamurthy, and Roy Steiner. Managing Irrigation: Analysing and Improving the Performance of Bureaucracies. New Delhi/Newbury Park/London: Sage Publications. 1991. Hardbound. Price not given.

1993 ◽  
Vol 32 (2) ◽  
pp. 226-228
Author(s):  
Zakir Hussain
Keyword(s):  
Water Distribution ◽  
Irrigation System ◽  
Irrigation Management ◽  
Performance Criterion ◽  
New Delhi ◽  
Irrigation Performance ◽  
Factors Affecting ◽  
Wide Range ◽  
Resource Mobilisation ◽  
Management Issues

The book; under review provides a valuable account of the issues and factors in managing the irrigation system, and presents a lucid and thorough discussion on the performance of the irrigation bureaucracies. It comprises two parts: the first outlines the factors affecting irrigation performance under a wide range of topics in the first five chapters. In Chapter One, the authors have attempted to assess the performance of the irrigation bureaucracies, conceptualise irrigation management issues, and build an empirical base for analysis while drawing upon the experience of ten country cases in Asia, Africa, and Latin America. The Second Chapter focuses on the variations in the management structures identified and the types of irrigation systems; and it defines the variables of the management structures. The activities and objectives of irrigation management are discussed in Chapter Three. The objectives include: greater production and productivity of irrigation projects; improved water distribution; reduction in conflicts; greater resource mobilisation and a sustained system performance. The authors also highlight the performance criterion in this chapter. They identify about six contextual factors which affect the objectives and the performance of irrigation, which are discussed in detail in Chapter Four. In Chapter Five, some organisational variables, which would lead to improvements in irrigation, are examined.

Technological and agronomic assessment of a Variable Rate Irrigation system integrated with soil sensor technologies

2017 ◽  
Vol 8 (2) ◽  
pp. 564-568 ◽  
Author(s):  
M. Martello ◽  
A. Berti ◽  
G. Lusiani ◽  
A. Lorigiola ◽  
F. Morari
Keyword(s):  
Irrigation System ◽  
Irrigation Performance ◽  
Variable Rate ◽  
Management Zones ◽  
Soil Moisture Sensors ◽  
First Results ◽  
Potential Benefits ◽  
Noticeable Reduction ◽  
Business As Usual ◽  
Variable Rate Irrigation

The main goal of this study was assessing the technological and agronomic performances of a centre pivot Variable Rate Irrigation (VRI) system. The study was conducted in 2015 on a 16-ha field cultivated with maize. Irrigation was scheduled in three Management Zones according to data provided by a real-time monitoring system based on an array of soil moisture sensors. First results demonstrated the potential benefits of the VRI system on irrigation performance however a multiyear comparison is requested for evaluating the response to climate variability. VRI resulted in yields comparable to the business-as-usual regime but through a noticeable reduction in irrigation volumes.

Analytical Head Loss Equation of Center-Pivot Irrigation System

2021 ◽  
Vol 147 (7) ◽  
Author(s):  
Amin Seyedzadeh ◽  
Amir Panahi ◽  
Eisa Maroufpoor ◽  
Abdolmajid Liaghat
Keyword(s):  
Irrigation System ◽  
Head Loss ◽  
Center Pivot

scholarly journals IRRIGAÇÃO DE PASTAGENS VIA PIVÔ CENTRAL, NA BOVINOCULTURA DE CORTE.

Irriga ◽  
2009 ◽  
Vol 14 (4) ◽  
pp. 492-503 ◽  
Author(s):  
Leonardo Pretto de Azevedo ◽  
João Carlos Cury Saad
Keyword(s):  
Solar Radiation ◽  
Dry Matter ◽  
Irrigation System ◽  
Economic Feasibility ◽  
Forage Production ◽  
Advantages And Disadvantages ◽  
Forage Plants ◽  
Matter Production ◽  
Tropical Forage ◽  
Center Pivot

Irrigação de pastagens via pivô central, na bovinocultura de corte.  Leonardo Pretto de Azevedo1; João Carlos Cury Saad21 Instituto Federal de São Roque, São Roque, SP, [email protected] de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Botucatu, SP,   1 RESUMO          O presente trabalho teve como objetivo apresentar o sistema de irrigação de pastagens via pivô central na bovinocultura de corte brasileira, bem como discutir a viabilidade econômica desta prática em diferentes regiões do país. Foram apresentados fatores importantes na produção de massa seca de forrageiras tropicais, como temperatura, radiação solar, adubação e água. Também foram apresentadas as vantagens e desvantagens do sistema, bem como uma breve discussão de sua viabilidade econômica. Concluiu-se que a irrigação de pastagens pode ser uma técnica economicamente viável para regiões específicas do Brasil, considerando-se os fatores envolvidos e esclarecendo que apenas o fornecimento de água às culturas não resolve o problema da estacionalidade durante o inverno. UNITERMOS: pivô central, forrageiras, viabilidade econômica  AZEVEDO, L. P.; SAAD, J. C. C. Pasture irrigation under center pivot for beef cattle.  2 ABSTRACT          The aims of this work were to show the pasture irrigation system by center pivot with Brazilian cattle and to discuss the economic feasibility of this technique in different regions of the country. Important parameters to dry matter production of tropical forage plants, as temperature, solar radiation, fertilization, and water requirement were shown Also, the system advantages and disadvantages and a discussion about economic feasibility of this technique were presented. It was concluded that pasture irrigation is a feasible and economical technique to some specific Brazilian regions, depending on appropriated parameters. This work also concludes that just water supply is not enough to assure forage production avoiding reduction in dry production in the winter. KEYWORDS: center pivot, pasture, economic feasibility

scholarly journals PELAKSANAAN PELAYANAN PUBLIK DI BIDANG PENGAIRAN IRIGASI PERTANIAN DI KABUPATEN LOMBOK TIMUR DI TINJAU DARI UNDANG¬-UNDANG NOMOR 17 TAHUN 2019 TENTANG SUMBER DAYA AIR

2021 ◽  
Vol 3 (1) ◽  
pp. 78-94
Author(s):  
Zulhadi Lalu
Keyword(s):  
Food Security ◽  
Large Scale ◽  
Agricultural Sector ◽  
Irrigation System ◽  
Irrigation Management ◽  
Small Scale ◽  
Irrigation Performance ◽  
Irrigation Systems ◽  
Irrigation Development ◽  
Problems And Solutions

Irrigation facilities is one of the key factors in farming, especially for food crop farming, including rice. A smallscale irrigation system has an area of less than 500 hectares, and it is the backbone of family food security which in turn will lead to national food security. Damage irrigation system networks will threaten food production increase. In the future, irrigation infrastructure must be better managed so that agricultural sector can realize agricultural diversification, conserve wider irrigation system and maintain local wisdom and social capital in irrigation management. The objective of the paper is to analyze performance, problems and solutions of small irrigation systems in Indonesia, including small irrigation concepts and understanding, small irrigation performance and development, small irrigation development policies, factors affecting smallscale irrigation development, investments, and prospects. The paper also compares various performances, problems and solutions of small irrigation systems in other countries. Small scale irrigation performance is often better than large-scale irrigation, in the sense of water availability throughout the year and equitable water distribution for all service areas

scholarly journals Simulation of the Occurrence of Water Runoff in Soils Under Cultivation of Industrial Tomato Irrigated by Center Pivot

2019 ◽  
Vol 11 (7) ◽  
pp. 48
Author(s):  
Diogo. H. M. Moraes ◽  
José Alves Júnior ◽  
Marcio Mesquita ◽  
Adão. W. P. Evangelista ◽  
Derblai Casaroli ◽  
...  
Keyword(s):  
Surface Runoff ◽  
Irrigation System ◽  
Numerical Technique ◽  
Irrigation Management ◽  
Water Runoff ◽  
Clayey Soils ◽  
Infiltration Capacity ◽  
Tomato Crop ◽  
Center Pivot ◽  
Different Types

The tomato crop is almost totally irrigated. Among the irrigation methods utilized, mechanized sprinkling by center pivot stands out in tomato cultivation. A cultural treatment used in the tomato is the synchronization of the irrigations with the applications of the pesticides since with the leaf wetting the plants become unprotected and susceptible to diseases. In an attempt to reduce pesticide applications, growers seek to increase the time between irrigations, however, there are limitations, inherent to the soil and the irrigation system itself. The objective of this work was to simulate the soil water runoff tendency for irrigation management in the tomato crop, simulating three different types of soils (sandy, medium and clayey), three declines (0, 5 and 10%), and two types of deflectors (I-Wob and Spray). For this, four pivot sizes (25, 50, 75 and 100 ha) were defined and the methodology of maximum allowable precipitation estimated by the Newton-Raphson numerical technique was used to verify the different runoff conditions. The results showed that clayey soils are more susceptible when compared to medium and sandy soils, to surface runoff. Pivots of 100, 75 and 50 ha present greater susceptibility to runoff, with 25 ha being the best suitability for infiltration capacity in both soils. There is a percentage reduction of the maximum allowable rainfall of 40.74 % (±1.54) when the terrain is plan and pass to have 5% inclination and 22.99% (±1.47) between 5 and 10 %. I-Wob type deflectors have a better distribution of application, a consequently better relation with the maximum allowable precipitation intensity and less possibility of the surface runoff.

A Renewable Solution Approach for Center Pivot Irrigation System

2018 ◽  
Author(s):  
Vishwajit Roy ◽  
Subrina Sultana Noureen ◽  
Stephen Bayne ◽  
Argenis Bilbao ◽  
Michael Giesselmann
Keyword(s):  
Irrigation System ◽  
Solution Approach ◽  
Center Pivot

Predictable Scenarios of Fuzzy Logic Analysis for Sprinkler Irrigation Control

2021 ◽  
pp. 210-235
Author(s):  
Mohamed Elsayed Elhagarey ◽  
Mohamed M. Hushki ◽  
Szabo E. Istvan
Keyword(s):  
Fuzzy Inference ◽  
Irrigation System ◽  
Sprinkler Irrigation ◽  
Irrigation Performance ◽  
Centroid Method ◽  
Irrigation Practice ◽  
Personal Experiences ◽  
Triangular Function ◽  
Common Technique ◽  
Fuzzy Logic Analysis

MATLAB will be utilized to validate the various irrigation systems and report it; the air temperature, wind, and humidity will be member functions to improve the efficiency of irrigation performance before the irrigation process, and the fuzzy information system consists of fuzzy rules, which are derived from information of experts or from input-output learning of the system. Rules mimic human reasoning. Mamdani method is mostly applied in the fuzzy inference technique, and the generalized bell function is used for both of temperature and wind where the triangular function used for humidity. The principles were based on the last experiments and personal experiences, and the output will change into a crisp value from this procedure of defuzzification. There are many different methods to do defuzzification, but the most common technique is centroid method. The resultant surface graphic is enough to monitor, validate, and report the irrigation system efficiency to execute and schedule the irrigation practice management.

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