scholarly journals Potassium distribution in drip irrigation with fertigation for different injection distances in the main line

2014 ◽  
Vol 34 (6) ◽  
pp. 1150-1161 ◽  
Author(s):  
Guilherme V. do Bomfim ◽  
Juan Manzano ◽  
Benito M. de Azevedo ◽  
Denise V. Vasconcelos ◽  
Thales V. de A. Viana
Keyword(s):  
Experimental Design ◽  
Drip Irrigation ◽  
Nutrient Concentration ◽  
Drip Line ◽  
Main Line ◽  
Flame Spectrophotometry ◽  
Distribution Uniformity ◽  
Electric Action ◽  
Surface Drip Irrigation

The purpose of this research was to evaluate the K2O distribution uniformity by surface drip irrigation at Universitat Politecnica de Valencia, Valencia, Spain (39º 29′ N, 0º 23′ W, 20 m). The irrigation was performed by drip lines with not-compensated emitters, spaced 0.3 m. The fertigation was realized using a fertilizer injector pump of electric action with injection of 0.25 h. The experimental design used completely randomized blocks with five treatments and four replications. The treatments consisted of injection in five distances, located at 10; 20; 30; 40; 50 m of the first drip line. Samples were collected in emitters located at the start, at 1/3, at 2/3 and at the end of the drip lines. The nutrient concentration was determined by flame spectrophotometry. The Christiansen's uniformity coefficients (CUC), of distribution (DUC), of statistical (SUC) and of emission (eUC) were estimated. The K2O concentration and distribution decreased linearly with the increase of the injection distance. In all treatments, the CUC, SUC and DUC were described as 'excellent'. The eUC was described as 'recommended' only at smaller injection distances.

scholarly journals Effect of pipe type and Emitters discharge on performance criteria of surface drip irrigation system

2021 ◽  
Vol 904 (1) ◽  
pp. 012013
Author(s):  
B A AL-Dulaimi ◽  
Sh M AL-Mehmdy
Keyword(s):  
Coefficient Of Variation ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Performance Criteria ◽  
Research Station ◽  
Operating Pressure ◽  
Drip Irrigation System ◽  
Design Discharge ◽  
Distribution Uniformity ◽  
Surface Drip Irrigation

Abstract A field experiment was conducted in Jazeerah Al-Ramadi/Al-Hamidiyah research station (latitude33^o 27^’ 〖 11.9 〗 ^(՚՚)N, longitude 43^o 23^’ ^(՚՚) E (duration 2020. This study was conducted to investigate the effect of pipe types and emitters discharge on performance criteria of surface drip irrigation system. Therefore, a two factorial experiment was set as randomized complete block design with three replications. The first factor included the type of pipes and emitters, namely Turbo, GR and T-Tape. While the second factor involved the emitters discharge which consist of two levels i.e., 4 (D4) and 8 (D8) L.h-1. The irrigation system was initially evaluated in the field before planting by testing three operating pressures (50, 100 and 150 Kpa) to determine the actual discharge of the emitters closed to their design discharge (4 and 8 L.h-1) for each emitter to calculate the manufacturing coefficient of variation (CV), distribution uniformity and the discharge variation ratio at each operating pressure. Results showed that the best discharge (Closed to design discharge of 4 L.h-1) was obtained at the 50 Kpa operating pressure which gave 3.99,3.90 and 3.81 L.h-1 when using the T-Tape pipe and GR and Turbo emitter compare when the discharge of 8L.h-1 has been used which gave 7.96, 7.84 and 7.59 L.h-1 when the former pipe and emitters were used. The best coefficient of variation was observed when the T-Tape pipe and GR and Turbo emitter were used with discharge of 4 L.h-1 up to 0.1300, 0.2200 and 0.2600 compare to 0.1300, 0.2700 and 0.3500 when the same former pipe and emitters were used with discharge of 8L. h-1. Similarly, the best distribution uniformity was obtained when the T-Tape pipe and GR and Turbo emitter has been used with discharge of 4 L.h-1 which gave 94.68, 91.74 and 90%. Likewise, the most acceptable variety discharge ratio was observed when the same prior pipe and emitters were used with discharge of 4 L.h-1 by giving 7.23, 11.90 and 12.19 %.

scholarly journals DESEMPENHO DE EMISSORES APLICANDO RESÍDUOS FINOS DE ROCHAS ORNAMENTAIS

Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 118-126
Author(s):  
Carlos Magno Mulinario Poloni ◽  
Gustavo Haddad Souza Vieira ◽  
José Julio Garcia De Freitas ◽  
Jéssica Broseguini Loss ◽  
Guilherme Peterle ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Test Bench ◽  
Drip Line ◽  
Small Particles ◽  
Uniformity Coefficient ◽  
Distribution Uniformity ◽  
Set Up ◽  
Irrigation Quality ◽  
Continuous Use ◽  
E Mail

DESEMPENHO DE EMISSORES APLICANDO RESÍDUOS FINOS DE ROCHAS ORNAMENTAIS  CARLOS MAGNO MULINARIO POLONI1; GUSTAVO HADDAD SOUZA VIEIRA2; JOSÉ JÚLIO GARCIA DE FREITAS3; JÉSSICA BROSEGHINI LOSS4; GUILHERME PETERLE5 E PAOLA ALFONSA VIEIRA LO MONACO6 1Estudante de Agronomia, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected]. Doutor, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail:[email protected]. Mestre, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected] em Produção Vegetal, CCA-UFES, Alegre-ES. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected] de Agronomia, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected]ª. Doutora, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected].  1 RESUMO Objetivou-se, com a realização deste trabalho, avaliar o desempenho de diferentes emissores de irrigação localizada, aplicando resíduos finos do beneficiamento de rochas ornamentais. O experimento foi realizado no Ifes Campus Santa Teresa e os tratamentos consistiram em cinco diferentes emissores, sendo eles: Tubo gotejador D5000 Flow Regulated Drip Line (G1); Tubo gotejador NaanDanJain (G2); Botão gotejador Irritec (G3); Microspray Amanco roxo (G4) e Microspray Amanco vermelho (G5). Montou-se uma bancada para os testes de vazões, composta de cinco calhas com 12 metros de comprimento cada, para coleta e recirculação da solução utilizada. Os emissores, espaçados a 0,40 m, foram avaliados em 0, 100, 200, 300 e 400 horas de uso contínuo, com quatro repetições. Foi caracterizada a solubilidade e a granulometria do resíduo. Avaliou-se a vazão (Q); o coeficiente de uniformidade de distribuição (CUD); o coeficiente variação de vazão (CVq) e a vazão relativa dos emissores (Qr). Ao final, os emissores G1 e G2 apresentaram os melhores desempenhos, seguidos pelos emissores G3, G5 e G4.  Palavras-chave: Entupimento, irrigação localizada, qualidade, uniformidade.  POLONI, C. M. M.; VIEIRA, G. H. S.; FREITAS, J. J. G.; LOSS, J. B.; PETERLE, G.; LO MONACO, P.A.V.EMITTERS PERFORMANCE IN APPLYING SMALL WASTES PARTICLES FROM ORNAMENTAL ROCKS  2 ABSTRACT This work aims to evaluate the performance of different drip irrigation emitters, applying small particles from ornamental rocks processing. The experiment was carried out at the Ifes Campus of Santa Teresa using five different emitters: D5000 Flow Regulated Drip Line (G1); NaanDanJain drip tube (G2); Irritec drip button (G3); Microspray Amanco purple (G4) and Microspray Amanco red (G5). A test bench was set up for the flow tests, composed of five gutters each one of them 12 meters in length, for collection and recirculation of the solution used. The emitters, distributed at every 0.40 m within the gutter, were evaluated for 0, 100, 200, 300 and 400 hours of continuous use, with four repetitions. The solubility and particle size of the waste were characterized. The flow rate (Q); the distribution uniformity coefficient (CUD); the coefficient of flow variation (CVq); and the relative flow of the emitters (Qr) were evaluated. In the end, the emitters G1 and G2 presented the best performances, followed by emitters G3, G5 and G4. Keywords: Clogging, drip irrigation, quality, uniformity. 

scholarly journals SIMULATION OF THE WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND GRAVEL GROOVE

2016 ◽  
Vol 9 (4) ◽  
pp. 71-82
Author(s):  
Younis Mohammad Hassan ◽  
◽  
Ahmed Shihab Ahmed ◽  
Sabah Anwer Almasraf ◽  
◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Surface Drip Irrigation ◽  
Wetting Pattern

Evaluation of fertigation management impacts of surface drip irrigation on reducing nitrate leaching using numerical modeling

2019 ◽  
Vol 26 (36) ◽  
pp. 36499-36514 ◽  
Author(s):  
Nasrin Azad ◽  
Javad Behmanesh ◽  
Vahid Rezaverdinejad ◽  
Fariborz Abbasi ◽  
Maryam Navabian
Keyword(s):  
Numerical Modeling ◽  
Nitrate Leaching ◽  
Drip Irrigation ◽  
Surface Drip Irrigation

scholarly journals Spatial Distribution of Salinity and Sodicity in Arid Climate Following Long Term Brackish Water Drip Irrigated Olive Orchard

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2556 ◽  
Author(s):  
John Rohit Katuri ◽  
Pavel Trifonov ◽  
Gilboa Arye
Keyword(s):  
Spatial Distribution ◽  
Irrigation Water ◽  
Brackish Water ◽  
Drip Irrigation ◽  
Arid Regions ◽  
Drip Line ◽  
Negev Desert ◽  
Soil Reclamation ◽  
Olive Orchard

The availability of brackish groundwater in the Negev Desert, Israel has motivated the cultivation of various salinity tolerant crops, such as olives trees. The long term suitability of surface drip irrigation (DI) or subsurface drip irrigation (SDI) in arid regions is questionable, due to salinity concerns, in particular, when brackish irrigation water is employed. Nevertheless, DI and SDI have been adopted as the main irrigation methods in olive orchards, located in the Negev Desert. Reports on continued reduction in olive yields and, essentially, olive orchard uprooting are the motivation for this study. Specifically, the main objective is to quantify the spatial distribution of salinity and sodicity in the active root-zone of olive orchards, irrigated with brackish water (electrical conductivity; EC = 4.4 dS m−1) for two decades using DI and subsequently SDI. Sum 246 soil samples, representing 2 m2 area and depths of 60 cm, in line and perpendicular to the drip line, were analyzed for salinity and sodicity quantities. A relatively small leaching-zone was observed below the emitters depth (20 cm), with EC values similar to the irrigation water. However, high to extreme EC values were observed between nearby emitters, above and below the dripline. Specifically, in line with the dripline, EC values ranged from 10 to 40 dS m−1 and perpendicular to it, from 40 to 120 dS m−1. The spatial distribution of sodicity quantities, namely, the sodium adsorption ratio (SAR, (meq L−1)0.5) and exchangeable sodium percentage (ESP) resembled the one obtained for the EC. In line with the dripline, from 15 to 30 (meq L−1)0.5 and up to 27%, in perpendicular to the drip line from 30 to 60 (meq L−l)0.5 and up to 33%. This study demonstrates the importance of long terms sustainable irrigation regime in arid regions in particular under DI or SDI. Reclamation of these soils with gypsum, for example, is essential. Any alternative practices, such as replacing olive trees and the further introduction of even high salinity tolerant plants (e.g., jojoba) in this region will intensify the salt buildup without leaving any option for soil reclamation in the future.

Effects of water salinity on emitter clogging in surface drip irrigation systems

2020 ◽  
Author(s):  
Zhangzhong Lili ◽  
Yang Peiling ◽  
Zheng Wengang ◽  
Li Yunkai ◽  
Liu Yu ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Salinity ◽  
Irrigation Systems ◽  
Surface Drip Irrigation

SIMULATION OF SOIL WATER AND SALINITY DISTRIBUTION UNDER SURFACE DRIP IRRIGATION

2013 ◽  
Vol 62 (3) ◽  
pp. 352-362 ◽  
Author(s):  
Tarek Selim ◽  
Ronny Berndtsson ◽  
Magnus Persson
Keyword(s):  
Soil Water ◽  
Drip Irrigation ◽  
Salinity Distribution ◽  
Surface Drip Irrigation

scholarly journals Water use efficiency of different production techniques for zucchini

2019 ◽  
Vol 41 (1) ◽  
pp. 42604
Author(s):  
Anita Cristina Costa da Silva ◽  
Willian Fernandes de Almeida ◽  
Luiz Antonio Lima ◽  
Mayra Carolina De Oliveira ◽  
Alexandre Lasmar Guimarães
Keyword(s):  
Water Use Efficiency ◽  
Factorial Design ◽  
Water Use ◽  
Drip Irrigation ◽  
Drip Line ◽  
First Year ◽  
Line Position ◽  
Plastic Mulch ◽  
Use Efficiency ◽  
Subsurface Drip

 The effects of pulse drip, drip line position and soil mulch on water use efficiency in yields of zucchini cv. Clarinda were evaluated. The experiment was conducted in the experimental area of the Engineering Department of the Federal University of Lavras, Lavras, Minas Gerais State, Brazil, for two years. For the first year of the experiment, the experimental design was a randomized block design with a 2 x 2 x 2 factorial design (continuous and pulse drip irrigation, surface and subsurface dripping, with and without plastic mulch), with four replications. For the second year of the experiment, the design was completely randomized in a 2 x 2 x 2 factorial design with eight treatments and five replications. In relation to the position of the drip line, the subsurface drip line was installed at a 0.15-m depth, and the soil mulch was made with double-sided plastic (white/black). The results indicated that pulse drip irrigation did not affect the yield of zucchini and that soil mulch increased the yield and water use efficiency. In terms of the drip line position, the subsurface drip line increased the yield in the first year, but it had no effect on water use efficiency.

Analyzing Soil Moisture Uniformity for Surface Drip Irrigation System in Multi-layered soil

2011 ◽  
Author(s):  
Soon Goon Choi ◽  
Jin-Yong Choi ◽  
Won-Ho Nam ◽  
Eun Mi Hong ◽  
Sang-Ho Jeon
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Layered Soil ◽  
Drip Irrigation System ◽  
Surface Drip Irrigation
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