scholarly journals Economic analysis for oregano under irrigation considering economic risk factors

2012 ◽  
Vol 30 (2) ◽  
pp. 234-239 ◽  
Author(s):  
Patricia Angélica A Marques ◽  
Lineu Bernardi Filho ◽  
José Antônio Frizzone
Keyword(s):  
Risk Factors ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Electric Energy ◽  
Economic Feasibility ◽  
Fixed Cost ◽  
Selling Price ◽  
Economic Risk ◽  
Irrigation Frequency ◽  
Total Cost

The oregano is a plant, rich in essential oil and very used as spice in the preparation of foods. The objective of this paper was to analyze the viability of irrigation for oregano in Presidente Prudente, São Paulo state, Brazil, including economic risk factors, their effect on irrigation total cost, as well as the different pumping kinds. The Monte Carlo simulation was utilized to study the economic factors: fixed cost, labor, maintenance, pumping and water. The use of irrigation for the oregano in the region of Presidente Prudente is indicated because of its economic feasibility and the reduced risks. The average values of the benefit/cost for all water depths tested were higher than 1, indicating viability. The use of irrigation promoted lower risks compared to the non irrigated crop. The micro irrigation system presented greater sensitivity to changes of prices of the equipment associated to the variation of the useful life of the system. The oregano selling price was the most important factor involved in annual net profit. The water cost was the factor of lesser influence on the total cost. Due to the characteristic of high drip irrigation frequency there was no difference between the tariffs based in use hour of electric energy classified as green and blue, which are characterized by applying different rates on the energy consumption and demand according to the hours of day and times of the year. For the studied region it was recommended drip irrigation water management of oregano with the daily application of 100% of pan evaporation Class A using electric motor with tariffs blue or green.

scholarly journals VIABILIDADE ECONÔMICA DA IRRIGAÇÃO DEFICITÁRIA EM MILHO IRRIGADO POR GOTEJAMENTO

Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 150 ◽  
Author(s):  
Juliano Dalcin Martins ◽  
Reimar Carlesso ◽  
Mirta Teresinha Petry ◽  
Gonçalo Caleia Rodrigues
Keyword(s):  
Drip Irrigation ◽  
Deficit Irrigation ◽  
Irrigation System ◽  
Irrigation Management ◽  
Growing Season ◽  
Economic Feasibility ◽  
Irrigated Agriculture ◽  
Selling Price ◽  
Crop Evapotranspiration ◽  
Santa Maria

VIABILIDADE ECONÔMICA DA IRRIGAÇÃO DEFICITÁRIA EM MILHO IRRIGADO POR GOTEJAMENTO JULIANO DALCIN MARTINS 1; MIRTA TERESINHA PETRY 2; GONÇALO CALEIA RODRIGUES 3 E REIMAR CARLESSO 4  1 Instituto Federal de Educação, Ciência e Tecnologia Farroupilha (IFRS), Câmpus Ibirubá, Ibirubá, RS, [email protected] Universidade Federal de Santa Maria (UFSM), Departamento de Engenharia Rural, Santa Maria, RS, [email protected] CEER- Engenharia dos biossistemas,  Instituto Superior de Agronomia, Universidade Técnica de Lisboa, Lisboa, Portugal, [email protected] Universidade Federal de Santa Maria (UFSM), Departamento de Engenharia Rural, Santa Maria, RS, [email protected].  1 RESUMO A irrigação por gotejamento é uma tecnologia que permite maior controle sobre a quantidade de água aplicada, melhorando a eficiência de seu uso na agricultura irrigada. Entretanto, apesar das inúmeras vantagens associadas à irrigação por gotejamento, a sua implantação muitas vezes é limitada pelo elevado custo de implantação e manutenção. O principal objetivo desse trabalho foi avaliar a viabilidade econômica do uso da irrigação deficitária por gotejamento na cultura do milho. Foram conduzidos dois experimentos sob uma cobertura móvel, nos anos agrícolas de 2010/11 e 2011/12. Os tratamentos foram constituídos de irrigação plena com reposição de 100% da evapotranspiração da cultura (ETc) e irrigação deficitária, com reposição da evapotranspiração da cultura de 80, 55 e 30% da ETc, durante o ano agrícola de 2010/11 e reposição de 100, 80, 65, 45 e 40% da ETc, durante o ano agrícola de 2011/12. Os resultados indicaram que as despesas com os custos fixos relacionados às linhas laterais do sistema de irrigação foram as que mais oneraram o custo final de produção, em todos os tratamentos e condições estudadas. A análise de sensibilidade demonstrou que a lucratividade da irrigação por gotejamento na cultura do milho está associada ao custo fixo anual do sistema de irrigação e do preço de comercialização do milho. Palavras-chave: Viabilidade econômica, evapotranspiração, manejo de irrigação.  MARTINS. J. D.; PETRY, M. T.; RODRIGUES, G. C.;CARLESSO. R.ECONOMIC VIABILITY OF DEFICTARY DRIP IRRIGATION INIRRIGATED CORN  2 ABSTRACT Drip irrigation is a technology that allows greater control over the applied water improving the water use efficiency in the irrigated agriculture. However, despite the advantages used associated to the drip irrigation, its implantation may sometimes be limited by installation costs. The objective of this paper was to evaluate the economic feasibility of deficit irrigation using a drip system for maize plants. Two experiments were conducted under a rain out shelter, during 2010/11 and 2011/12 growing seasons. Treatments consisted of full irrigation with replacement of 100% of crop evapotranspiration (ETc) and deficit irrigation with replacement of the crop evapotranspiration at a rate of 80, 55 and 30% ETc during the 2010/11 growing season and replacement of 100, 80, 65, 45 and 40% of ETc during the 2011/12 growing season. The results indicated that expenses with fixed costs related to the lateral lines of the irrigation system were higher for all treatments and conditions studied. Sensitivity analysis shows that the profitability of drip irrigation for maize was associated with annual fixed cost of the drip irrigation system and also the maize selling price. Keywords: Economic viability, evapotranspiration, irrigation management. 

scholarly journals Economic Feasibility of a Shade Tree Container Production System

1991 ◽  
Vol 9 (2) ◽  
pp. 105-108
Author(s):  
D.H. Chinery ◽  
T. Rhodus ◽  
D.K. Struve
Keyword(s):  
Sensitivity Analysis ◽  
Interest Rates ◽  
Economic Model ◽  
Quercus Rubra ◽  
Economic Feasibility ◽  
Variable Cost ◽  
Fixed Cost ◽  
Total Cost ◽  
Different Levels ◽  
Container Nursery

Abstract An economic model was developed to estimate the feasibility of producing red oak (Quercus rubra) whips in an established container nursery. Cost per plant was compared for a simulated container nursery of 6.88 and 13.76 ha (17 and 34 acres) at different levels of production. Variable cost per plant ranged from $3.48 when producing 100 plants to $3.16 when producing 4,160 or more. Fixed cost per plant was $.42 to $.55 higher in the small nursery, depending upon level of production. Total cost per plant varied from $3.86 to $4.59, depending upon nursery size and level of production. Sensitivity analysis indicated that total cost per plant is less responsive to changes in wage rate than changes in interest rates on operating capital. Reducing losses during the rapidgrowth and overwintering phases of production is necessary in order to minimize total cost per plant.

scholarly journals IRRIGAÇÃO LOCALIZADA POR GRAVIDADE COM MICROTUBOS

Irriga ◽  
2006 ◽  
Vol 11 (2) ◽  
pp. 266-279 ◽  
Author(s):  
Rodrigo Otávio Rodrigues de Melo Souza ◽  
Gerardo Felipe Espinoza Pérez ◽  
Tarlei Arriel Botrel
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Water Reservoir ◽  
The Other ◽  
Trickle Irrigation ◽  
Total Cost ◽  
Great Performance ◽  
Distribution Uniformity ◽  
Two Phases ◽  
The Cost

IRRIGAÇÃO LOCALIZADA POR GRAVIDADE COM MICROTUBOS  Rodrigo Otávio Rodrigues de Melo Souza; Gerardo Felipe Espinoza Pérez; Tarlei Arriel BotrelInstituto Centro Tecnológico de Ensino – CENTEC, Fortaleza, CE,  [email protected]  1 RESUMO             Os objetivos deste trabalho foram: dimensionar, implantar e avaliar um sistema de irrigação com microtubos por gravidade; e apresentar o custo do sistema com microtubos comparando-o com o custo do “kit” para irrigação localizada por gravidade, disponível no mercado. O experimento foi dividido em duas etapas, sendo que a primeira consistiu no dimensionamento, elaboração, montagem e avaliação do sistema de irrigação. A segunda etapa consistiu na implantação da cultura da alface em três canteiros, onde em dois canteiros a água foi fornecida por uma caixa d’água elevada a uma altura de1 m e distribuída para as alfaces através dos microtubos. No outro canteiro, a irrigação foi realizada através de um regador. Conforme os resultados observados o sistema obteve ótimo desempenho. Além de aplicar água com 97% de uniformidade de distribuição, também ficou provado que o microtubo foi fabricado com qualidade e uniformidade. O custo total do sistema para a irrigação de 16 canteiros ficou em R$ 466,77. A proposta de utilização do sistema de irrigação localizada com microtubos por gravidade demonstrou ser uma alternativa viável, tanto tecnicamente quanto economicamente, para os pequenos produtores. UNITERMOS: Irrigação por gotejamento, microtubos, baixa pressão  SOUZA, R.O.R. DE M.; PÉREZ, G.F.E.; BOTREL, T.A. GRAVITY TRICKLE IRRIGATION WITH MICROTUBES  2 ABSTRACT             The objectives of this study were to design, implant and evaluate a gravity irrigation system with micro tubes; and to show the cost of the system with micro tubes compared to the cost of the “kit” for gravity drip irrigation commercialized by irrigation companies. The experiment was divided into two phases: the first one consisted of the design, elaboration, assembly and evaluation of the irrigation system, whereas the second one consisted of the implantation of a lettuce culture in three flowerbeds. The water was provided by a1 mhigh water reservoir and distributed to the lettuce culture through micro tubes in two of the flowerbeds. In the other one, the irrigation occurred through a watering can. According to the results, the system achieved a great performance. Besides applying water with 97% distribution uniformity, it has also been proved that the micro tube manufacturing had quality and uniformity. The total cost of the irrigation system implementation in 16 flowerbeds was US$ 190.51. The use of gravity trickle irrigation system with micro tubes turned out to be a possible technical and economic option for small farmers. KEYWORDS: drip irrigation, low pressure, microtubes 

scholarly journals EFEITO DA FREQÜÊNCIA DE IRRIGAÇÃO SUBSUPERFICIAL POR GOTEJAMENTO NO DESENVOLVIMENTO DA CANA-DE-AÇÚCAR (Saccharum spp.)

Irriga ◽  
2002 ◽  
Vol 7 (1) ◽  
pp. 29-34 ◽  
Author(s):  
Alexandre Barcellos Dalri ◽  
Raimundo Leite Cruz
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Dry Weight ◽  
Subsurface Drip Irrigation ◽  
Control Treatment ◽  
Initial Growth ◽  
Irrigation Frequency ◽  
Saccharum Spp ◽  
Subsurface Drip ◽  
Set Up

EFEITO DA Freqüência dE irrigação subsuperficial por gotejamento no desenvolvimento da cana-de-açúcar (Saccharum spp.)[1]   Alexandre Barcellos DalriRaimundo Leite Cruz Depto de Eng. Rural – FCA – UNESP – Campus de BotucatuCP 237 – Fone(14) 6802-7165 – CEP.  18603-970 – Botucatu – SP   1 RESUMO              Este trabalho teve como o objetivo, verificar o efeito da freqüência da irrigação subsuperficial por gotejamento no desenvolvimento inicial da cana-de-açúcar.            Os tubos gotejadores foram instalados sob a linha da cultura, a uma profundidade de 0,3 m. A cana-de-açúcar foi plantada no dia 03/03/2000 e a partir de 01/04/2000 iniciaram os tratamentos nas parcelas irrigadas. O delineamento experimental foi inteiramente casualizado, com quatro tratamentos, e quatro repetições, definidos por regimes de freqüência da irrigação. O sistema de irrigação era acionado quando a evapotranspiração da cultura atingisse 10 mm, 20 mm, e 30 mm, para os tratamentos 1, 2, e 3 respectivamente. O tratamento 4 foi definido como testemunha (não irrigado).             A colheita foi realizada no dia 05/12/2000 e através da avaliação de produção de massa fresca, diâmetro e comprimento do colmo, e produção de massa seca, observou-se que não houve diferença estatística entre os diferentes regimes de freqüência de irrigação. Todavia, quando comparado com a testemunha, as irrigações proporcionaram um aumento médio maior que 45 % na produção de massa fresca e seca final dos colmos.   UNITERMOS: irrigação por gotejamento subsuperficial, cana-de-açúcar.   DALRI, A.B., CRUZ, R.L. EFFECT OF SUBSURFACE DRIP IRRIGATION FREQUENCY ON GROWTH OF SUGARCANE (Saccharum spp.)   2 ABSTRACT             The aim of this study was to verify subsurface drip irrigation effects on sugarcane initial growth.           Drip lines were set up under crop rows at 0.3 m deep. Sugarcane was planted on March 3, 2000, and drip irrigation treatments began on April 1, 2000. The experimental design was entirely randomized with four treatments and four replications according  to irrigation frequency. Irrigation system was turned on when crop evapotranspiration reached 10, 20 and 30 mm for the treatments 1, 2 and 3, respectively. Treatment 4 was considered  the control (without irrigation).           Harvest was carried out on December 5, 2000, and based on fresh and dry weight, stem diameter and length evaluation no statistical differences for irrigation frequencies have been observed, although irrigation has increased fresh and dried yield over 45% when compared to the control treatment.  KEYWORDS: subsurface drip irrigation, sugarcane.[1] Parte da dissertação do primeiro autor, para obtenção do título de Mestre em Agronomia – Irrigação e Drenagem

scholarly journals Economic Viability of Irrigation and Nitrogen Fertilization in Jambu Production in Brazilian Amazon

2020 ◽  
Vol 8 (3) ◽  
pp. 18
Author(s):  
William Lee Carrera de Aviz ◽  
Joaquim Alves de Lima Junior ◽  
Helane Cristina Aguiar Santos ◽  
Deiviane De Souza Barral ◽  
Valdeides Marques Lima ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Soil Water ◽  
Nitrogen Fertilization ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Brazilian Amazon ◽  
Economic Feasibility ◽  
Economic Viability ◽  
Protected Cultivation ◽  
A Site

This work aimed to analyze the economic feasibility of the irrigation system by dripping and nitrogen fertilization in jambu production. The experiment was conducted at the Experimental Farm of Igarapé-Açu, a site owned by UFRA, in protected cultivation, from May to July in 2016. The treatments consisted in four soil water tensions (12, 18, 24 and 30 kPa) and four nitrogen doses (0, 50, 100 and 150 kg ha-1). The economic analysis of the jambu irrigated production was sustained by the theory of producing costs considering both depreciation cost and alternative cost. The treatment with the highest profit was managed at 18 kPa with a nitrogen dose of 50 kg ha-1, with a profit of R$ 1,548.54 for an area of 1,000 m.². The drip irrigation and nitrogen fertilization were economically viable for the jambu crop.

scholarly journals Techno economic feasibility of drip irrigation for vegetable cultivation

2021 ◽  
Vol 17 (2) ◽  
pp. 636-643
Author(s):  
Sucharita Senapti ◽  
D.T. Santosh ◽  
L.P. Pholane
Keyword(s):  
Open Field ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Climatic Conditions ◽  
Economic Feasibility ◽  
Agricultural Activity ◽  
Vegetable Crops ◽  
Limited Information ◽  
Micro Irrigation ◽  
Vegetable Cultivation

Vegetable cultivation is a highly practised agricultural activity in India.Commercial horticulture includes the cultivation of both indigenous and exotic vegetables. Vegetable cultivation under the drip irrigation system provides favourable environment for crops growth to achieve higher yield and good quality produce. Adaption of improved irrigation method and supply of precision amount of irrigation water and nutrients to crops are the important in achieving greater yield and avoiding loss of water and nutrients. Micro irrigation can be used to irrigate vegetable crops efficiently in the greenhouse and open field conditions. Both the pan evaporation and FAO-56 Penman-Monteith methods have been adopted to estimate the water requirement of crops under greenhouse structures and in an open field condition. The fertilizer application along with micro irrigation system optimizes the water and fertilizer use efficiency. Vegetables require precision amount of irrigation and fertilizers application and suitable climatic conditions. A very limited information is available on the supply and management of these important inputs.This report presents the role of micro irrigation forthe cultivation of vegetable crops. The design and installation of micro irrigation system, estimation of irrigation requirement of various vegetable crops using micro irrigation are also presented in this manuscript of the report.

scholarly journals IRRIGAÇÃO POR GOTEJAMENTO SUBSUPERFICIAL NA PRODUÇÃO E QUALIDADE DE CANA-DE-AÇÚCAR

Irriga ◽  
2008 ◽  
Vol 13 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Alexandre Barcellos Dalri ◽  
Raimundo Leite Cruz ◽  
Carlos Jesus Baca Garcia ◽  
Luiza Helena Duenhas
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Irrigation Management ◽  
Subsurface Drip Irrigation ◽  
Irrigation Frequency ◽  
Dry Land ◽  
Yield Increase ◽  
Yield And Quality ◽  
Sugarcane Yield ◽  
Subsurface Drip

IRRIGAÇÃO POR GOTEJAMENTO SUBSUPERFICIAL NA PRODUÇÃO E QUALIDADE DE CANA-DE-AÇÚCAR  Alexandre Barcellos Dalri1; Raimundo Leite Cruz2; Carlos Jesus Baca Garcia3; Luiza Helena Duenhas 41Departamento de Ciências Agrárias, Centro Universitário Moura Lacerda, Ribeirão Preto, SP,  [email protected] de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Botucatu, SP 3Departamento de Engenharia Agrícola, Faculdade de Agronomia e Zootecnia, Universidade Nacional de San Antonio Abad del Cusco, Cusco-Peru4Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq  1 RESUMO             No Brasil, a cana-de-açúcar é predominantemente cultivada em condições de sequeiro. Entretanto, muitas vezes a irrigação está presente nas agriculturas tecnificadas, pois se traduz em maiores produtividades, melhor qualidade do produto e independência de chuva. Este trabalho teve como objetivo o estudo da freqüência de irrigação por gotejamento subsuperficial no desenvolvimento da cana-de-açúcar, no primeiro ciclo de cultivo. Os tratamentos foram definidos pela freqüência da irrigação: o sistema de irrigação era acionado quando a evapotranspiração da cultura superasse 10 mm, 20 mme 30 mm, para os tratamentos L1, L2 e L3, respectivamente. O tratamento L0 foi definido como testemunha (não irrigado). A irrigação por gotejamento subsuperficial não alterou a qualidade da cana-de-açúcar e não houve diferença estatística entre as diferentes freqüências de irrigação, para produtividade. Todavia, comparados à testemunha, os tratamentos L1, L2 e L3 proporcionaram incremento de produtividade de 47,33%, 58,53%, e 39,86%, respectivamente. UNITERMOS: freqüência de irrigação, manejo de irrigação, análise tecnológica.  DALRI, A. B.; DUENHAS, L. H.; GARCIA, C. J. B.; CRUZ, R. L. SUBSURFACE DRIP IRRIGATION ON SUGARCANE YIELD AND QUALITY   2 ABSTRACT             In Brazil, sugarcane is mostly cropped in dry land conditions. However, it is known that irrigation is present in advanced agriculture, because of its higher yields, better product quality and rainfall independence. This work aimed to study subsurface drip irrigation frequencies on sugarcane development during the first season. Treatments were defined by different irrigation frequencies: irrigation system were turned on when evapotranspiration reached 10 mm, 20 mm, and 30 mm, for treatments L1, L2, and L3, respectively. Treatment L0 was defined as control (non-irrigated). It was observed that subsurface drip irrigation did not affected sugarcane quality and there was no statistical difference among different irrigation frequencies for yield. However, when compared to the control, treatments L1, L2 and L3 showed yield increase of 47.33%, 58.53%, and 39.86%, respectively.KEY WORDS: irrigation frequency, irrigation management, technological analysis.

scholarly journals VIABILIDADE ECONÔMICA SOB CONDIÇÕES DE RISCO PARA A IRRIGAÇÃO DA CANA-DE-AÇÚCAR NA REGIÃO DE PIRACICABA- SP

Irriga ◽  
2006 ◽  
Vol 11 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Patricia Angélica Alves Marques ◽  
Tadeu Alcides Marques ◽  
José Antônio Frizzone
Keyword(s):  
Risk Factors ◽  
Sao Paulo ◽  
Maintenance Cost ◽  
São Paulo ◽  
Economic Risk ◽  
Total Cost ◽  
Viability Study ◽  
Irrigation Cost ◽  
Benefit Cost ◽  
Profit Value

VIABILIDADE ECONÔMICA SOB CONDIÇÕES DE RISCO PARA A IRRIGAÇÃO DA CANA-DE-AÇÚCAR NA REGIÃO DE PIRACICABA- SP  Patricia Angélica Alves Marques1; Tadeu Alcides Marques2; José Antônio Frizzone11Departamento de Engenharia Rural, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo,  Presidente Prudente, SP,  [email protected] do Oeste Paulista, Presidente Prudente, SP.  1 RESUMO O Brasil é o maior produtor de cana-de-açúcar do mundo eem São Paulopraticamente toda a cana-de-açúcar produzida é cultivada em condições de sequeiro. Desta maneira o presente trabalho teve como objetivo a análise da viabilidade econômica do uso da irrigação em cana-de-açúcar para a região de Piracicaba – SP, com a inclusão do risco econômico, e analisar o efeito dos fatores econômicos (custo fixo, custo da mão-de-obra, custo de manutenção, custo do bombeamento e custo da água) sobre o custo total, bem como as diferentes formas de bombeamento.  O sistema de irrigação por pivô central utilizando energia elétrica com tarifas azul e verde apresentou os melhores resultados.  Os maiores custos totais anuais da irrigação estão associados ao uso do motor diesel.  A mão-de-obra foi o fator econômico que menos influência teve sobre o custo total anual da irrigação com 1,67%, seguido pelo custo da água com 6,25% e custo de manutenção com 11,26%.  O custo do bombeamento apresentou a maior influência sobre o custo total anual da irrigação com uma participação média de 55,20%.Para todas as situações testadas os valores da relação benefício/custo apresentaram valores inferiores a 1, indicando inviabilidade.  Todos os sistemas testados apresentaram benefício líquido anual esperado com valores negativos, reforçando a inviabilidade do projeto.  UNITERMOS: cana-de-açúcar, sistemas de irrigação, viabilidade econômica, análise de risco.  MARQUES, P. A. A.; MARQUES, T. A.; FRIZZONE, J. A.; A VIABILITY STUDY FOR SUGARCANE IRRIGATION IN PIRACICABA, SAO PAULO STATE, BRAZIL, CONSIDERING ECONOMIC RISK FACTORS  2 ABSTRACT     Brazilis the world’s largest sugarcane producer.  InSão PauloState, practically all sugarcane produced is cultivated without irrigation.  The objective of this paper was to analyze the viability of irrigation for sugarcane inPiracicaba-São PauloState-Brazil, including economic risk factors, their effect on total cost, as well as the different pumping kinds.  The central pivot system using electric power showed the best results.  The highest total annual irrigation costs are associated to diesel engine use.  Labor force was the economical factor that less influenced on the total annual irrigation cost representing only 1.67%, followed by water cost (6.25%) and maintenance cost (11.26%). The pumping cost had the highest influence on the total annual irrigation cost, an average of 55.20%.  For all tested situations, the benefit/cost relationship values presented values that were inferior to 1, indicating no viability.  All tested systems presented expected negative annual irrigation profit value, corroborating that the project is not economically viable. KEYWORDS: sugarcane, irrigation systems, economic viability, risk analysis

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

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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