Estimativa de produtividade da cultura do feijão irrigado em Cristalina-GO, para diferentes lâminas de irrigação como função da uniformidade de aplicação

Mantovani, Everardo Chartuni; Montes, David Rolando Palomino; Vieira, Gustavo Haddad Souza; Ramos, Márcio Mota; Soares, Antônio Alves

doi:10.1590/s0100-69162012000100012

Cited by 11 publications

(11 citation statements)

References 17 publications

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“…There are several studies evidencing the need for nitrogen application in the peanut crop (Crusciol & Soratto, 2007;Mantovani et al, 2012;Rowland et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

et al. 2017

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ABSTRACT:The objective of this study was to define the best irrigation level in a sprinkler system, submitted to nitrogen doses in covering in the municipality of Tangará da Serra -MT, for two cultivars of peanut (Arachis hypogaea L.). The experiment was carried out in the experimental field of the State University of Mato Grosso (UNEMAT), located geographically in latitude 14º39'S; Longitude 57º25'W, at 440 meters of altitude. The climate is classified as tropical humid megathermal (Aw), with annual average rainfall of 1,830 mm and average temperature of the air 24.4ºC. The soil is classified as Dystroferric Red Latosol. The experimental design was in randomized blocks where 4 levels (30, 70, 110 and 150% of the reference evapotranspiration, ET0) were determined. In each level, 0, 30, 60, 90 and 120 Kg ha -1 of nitrogen were applied in two peanut cultivars IAC Tatu ST and IAC Runner 886. Each plot had 24 lines per 12 m length, 4 lines for each dose of N in each level and cultivar with 0.45 m spacing between lines. The irrigation level that provided the highest productivity in the development cycle for both peanut cultivars was 110% of ET0. While the levels of 30 and 70% of the ET0 allowed greater growth in height, but smaller productivities, the 150% ET0 level showed higher yields in the husk, and lower grain yield due to the high germination rate of the grain yet in the plant. For Tatu cultivar, doses of 60 to 90 kg ha -1 of N increase productivity, whereas for Runner cultivar nitrogen fertilization did not affect productivity.

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“…There are several studies evidencing the need for nitrogen application in the peanut crop (Crusciol & Soratto, 2007;Mantovani et al, 2012;Rowland et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

et al. 2017

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“…This is explained by the reduced rainfall in this period, resulting in high demands for irrigation, which practically had to provide the total amount of water needed by the crop. The largest irrigation depths required were lower than that reported by Mantovani et al (2012) of 418 mm, during the cycle of irrigated Carioca common bean cultivar, in Cristalina, with yield of 2,947 kg ha -1 . Our results, on the other hand, are close to that reported by Matzenauer et al (1999), in which the water requirement of 90-day-cycle bean cultivars is approximately 300 mm.…”

Section: Resultsmentioning

confidence: 59%

“…The largest irrigation depths required were lower than that reported by Mantovani et al (2012) of 418 mm, during the cycle of irrigated Carioca common bean cultivar, in Cristalina, with yield of 2,947 kg ha -1 . Our results, on the other hand, are close to that reported by Matzenauer et al (1999), in which the water requirement of 90-day-cycle bean cultivars is approximately 300 mm. However, Arf et al (2004), in Selvíria, observed that the yield of the IAC Carioca Eté cultivar did not change with irrigation depths ranging 150-287 mm.…”

Section: Resultsmentioning

confidence: 59%

Early sowing can improve irrigation water use efficiency and yield of common bean

Silva

Stone

Santos

et al. 2017

Pesqui. Agropecu. Trop.

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One of the great challenges in the use of irrigation, from an economic and environmental point of view, is to optimize the amount of water used in the production system. This study aimed at determining the viability of early sowing in the fall/winter harvest season, as well as its effects on the irrigation water use efficiency and yield of common bean. A crop model named CSM-CROPGRO-Dry bean, which simulates growth, development and yield of common bean as a function of environmental conditions, crop management and cultivar-specific parameters, was used to simulate the effects of 12 sowing dates on the irrigation water use efficiency and yield of the Pérola and BRS Radiante common bean cultivars. The simulated dates were as it follows: March 1st, 10 and 20 and April 1st, 10 and 20 (considered early); and May 1st, 10 and 20 and June 1st, 10 and 20 (considered traditional). The early sowing results in greater water economy than the traditional sowing season. Sowing in March provides a higher grain yield for the BRS Radiante cultivar and is similar to the traditional sowing of the Pérola cultivar. Concerning grain yield and irrigation water use efficiency, it is feasible to sow both cultivars in March.

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“…Em condições de alta uniformidade, CUC de 95%, essa mesma produtividade foi obtida com lâmina de 500 mm; com CUC de 75% necessitou-se de 650 -700 mm; e em condições de baixa uniformidade, CUC de 55%, a lâmina de irrigação foi superior a 1.100 mm. No cultivo de feijão em aspersão convencional, Mantovani et al (2012), também observaram que valores de CUC acima de 90% promoveram a máxima produtividade de grãos (2946 kg ha -1 ). Já com o CUC a 80 e 70%, a produtividade reduziu 5 e 17%, respectivamente e com o CUC a 65% ocorreu a menor produtividade, de 1975 kg ha -1 .…”

Section: Resultsunclassified

Eficiência Da Aplicação Da Água Por Pivô Central Em Diferentes Regiões De Minas Gerais

Toledo

Souza

Albuquerque

2017

R_I

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EFICIÊNCIA da APLICAÇÃO DA ÁGUA por PIVô CENTRAL EM DIFERENTES REGIÕES DE MINAS GERAIS. CRISTIAN EPIFÂNIO TOLEDO1; PAULO EMILIO PEREIRA DE ALBUQUERQUE2 E CLÁUDIO MÁRCIO PEREIRA DE SOUZA3 1Departamento de Agronomia, UEG – Universidade Estadual de Goiás, Campus Palmeira de Goiás, Go. Rua 7, s/n, CEP 76.190-000. Email: cristian.toledo@ueg.br 2Departamento de Núcleos Temáticos, EMBRAPA – Empresa Brasileira de Pesquisa Agropecuária, Sete Lagoas, MG. Email: paulo.albuquerque@embrapa.br 3Departamento de Agronomia, UFVJM – Universidade Federal dos Vales Jequitinhonha e Mucuri, Campus Diamantina, MG. Email: souzacmp@yahoo.com 1 RESUMO A prática da irrigação garante o suprimento da água onde há demanda, sendo imprescindível o uso eficiente desse recurso. Objetivou-se avaliar o desempenho de sistemas de pivôs centrais de propriedades rurais em diferentes regiões de Minas Gerais (MG). Foram realizados testes de campo para determinação dos coeficientes de uniformidade de distribuição de água, permitindo assim avaliar as eficiências dos pivôs centrais. Os parâmetros estudados foram: uniformidade de aplicação de água (CUC e CUD), eficiência de irrigação e percentagem de área adequadamente irrigada. Os pivôs centrais testados apresentaram em geral, níveis aceitáveis de uniformidade de aplicação de água. Os CUCs e CUDs em 82% dos sistemas avaliados apresentaram valores acima de 80% e 70%, respectivamente. A eficiência de aplicação de água também apresentou valores dentro do admissível e do normal, obtendo-se uma média de 91%, também caracterizando uma boa eficiência de aplicação de água. A percentagem de área adequadamente irrigada apresentou uma média de 49%, considerada regular. Assim, pode-se caracterizar os sistemas avaliados como de bom funcionamento. Palavras-chave: Pivô central; uniformidade de irrigação; coeficiente de uniformidade TOLEDO, C. E.; ALBUQUERQUE, P, E. P.; SOUZA, C. M. P. EFFICIENCY OF WATER APPLICATION BY A CENTRAL PIVOT IN DIFFERENT REGIONS OF MINAS GERAIS 2 ABSTRACT The practice of irrigation guarantees water supply where there is demand, and the efficient use of this resource is essential. The objective of this study was to evaluate the performance of central pivot systems of rural properties in different regions of Minas Gerais (MG). Field tests were performed to determine the coefficients of water distribution, thus allowing the evaluation of the efficiency of the central pivots. The parameters studied were: uniformity of water application (CUC and CUD), irrigation efficiency, and percentage of adequately irrigated area. The central pivots tested showed, in general, acceptable levels of water application uniformity. The CUCs and CUDs are 82% of the environmental systems presented values above 80% and 70%, respectively. The efficiency of water application also presented values within the allowable and normal limits, obtaining an average of 91%, also characterizing a good efficiency of water application. A percentage of adequately irrigated area reached an average of 49%, being considered regular. Thus, control systems can be characterized as being functional systems. Keywords: Central pivot; irrigation uniformity; uniformity coefficient

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Estimativa de produtividade da cultura do feijão irrigado em Cristalina-GO, para diferentes lâminas de irrigação como função da uniformidade de aplicação

Cited by 11 publications

References 17 publications

Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

Early sowing can improve irrigation water use efficiency and yield of common bean

Eficiência Da Aplicação Da Água Por Pivô Central Em Diferentes Regiões De Minas Gerais

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