scholarly journals Dual crop coefficient of common bean in Tangará da Serra, Mato Grosso

Author(s):  
William Fenner ◽  
Rivanildo Dallacort ◽  
Paulo S. L. de Freitas ◽  
Cleonir A. Faria Júnior ◽  
Marco A. C. de Carvalho ◽  
...  

ABSTRACT This study aimed to determine the dual crop coefficient of common bean ( Phaseolus vulgaris L.) for Tangará da Serra-MT, Brazil. The study used the FAO-56 dual kc method, dividing the kc into soil evaporation coefficient (ke), determined in microlysimeters, and basal crop coefficient (kcb), determined in weighing lysimeters. The study was conducted from July 10 (sowing) to October 6, 2014 (harvest), using the common bean cultivar 'BRS Estilo' and a sprinkler irrigation system with a coefficient of uniformity greater than 80%. The total rainfall and irrigation during the crop cycle (84 days) was 524.8 mm; the potential evapotranspiration (ETo) estimated for the period was 327.9 mm, whereas the crop evapotranspiration (ETc) accumulated during the cycle, determined in lysimeters, was equal to 477.5 mm. The kcb values determined for the initial, full development and final stages were 0.32, 1.10 and 0.81, respectively, while for ke, the respective values were 0.85, 0.40 and 0.53.

2014 ◽  
Vol 695 ◽  
pp. 380-383 ◽  
Author(s):  
Manal Osman ◽  
Suhaimi B. Hassan ◽  
Khamaruzaman B. Wan Yusof

The irrigation uniformity of sprinkler irrigation system depends on many design factors such as nozzle type, nozzle diameter, operating pressure and riser height. An experimental study was performed to investigate the effect of combination factors of operating pressure, nozzle diameter and riser height on sprinkler irrigation uniformity. Different operating pressures, nozzle diameters and riser heights have been used. The irrigation uniformity coefficients such as coefficient of uniformity (CU) and distribution uniformity of low quarter (DUlq) have been studied. This study concluded that, the irrigation uniformity of sprinkler irrigation system was more affected by the combination of operating pressure, nozzle diameter and riser height.


Irriga ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 473-485
Author(s):  
Cleonir Andrade Faria Junior ◽  
Rivanildo Dallacort ◽  
Paulo Sérgio Lourenço de Freitas ◽  
João Danilo Barbieri ◽  
Roberto Rezende ◽  
...  

COEFICIENTE DUAL DE CULTIVO DO MILHO PIPOCA EM TANGARÁ DA SERRA – MT     CLEONIR ANDRADE FARIA JUNIOR1; RIVANILDO DALLACORT2; PAULO SERGIO LOURENÇO DE FREITAS3; JOÃO DANILO BARBIERI4; ROBERTO REZENDE5 E WILLIAM FENNER6   1Doutorado no Programa de Pós-Graduação em Agronomia, Universidade Estadual De Maringá, Av. Colombo, nº 5790 – Zona 07, bloco j45, 2º piso, CEP - 87020-900, Maringá/PR/Brasil, [email protected] 2Professor do Programa de Pós-Graduação em Ambiente e Sistema de Produção Agrícola, Universidade do Estado de Mato Grosso, Rodovia MT  358, Km 07 (s/n) – Jardim Aeroporto, CEP: 78300-000, Tangará da Serra/MT/Brasil, [email protected] 3Professor no Programa de Pós-Graduação em Agronomia, Universidade Estadual De Maringá, Av. Colombo, nº 5790 – Zona 07, bloco j45, 2º piso, CEP - 87020-900, Maringá/PR/Brasil, [email protected] 4Doutorando no Programa de Pós-Graduação em Agronomia, Universidade Estadual De Maringá, Av. Colombo, nº 5790 – Zona 07, bloco j45, 2º piso, CEP - 87020-900, Maringá/PR/Brasil, [email protected] 5Professor no Programa de Pós-Graduação em Agronomia, Universidade Estadual De Maringá, Av. Colombo, nº 5790 – Zona 07, bloco j45, 2º piso, CEP - 87020-900, Maringá/PR/Brasil, [email protected] 6Doutor no programa de Pós-Graduação em Agricultura Tropical, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa, nº 2367, Bairro Boa Esperança, CEP – 78060-900, Cuiabá/MT/Brasil. [email protected]     1      RESUMO   O objetivo deste trabalho foi determinar o coeficiente duplo da cultura do milho pipoca para o município de Tangará da Serra - MT, utilizando lisímetros de pesagem. O experimento no campus da Universidade do Estado de Mato Grosso- UNEMAT, sendo o solo classificado como Latossolo Vermelho distroférrico, com textura muito argilosa. A semeadura foi realizada no dia 02/05/2015, nos seis lisímetros de pesagem, previamente calibrados com coeficientes de determinação acima de 0,99, para a bordadura foi utilizada uma semeadora de plantio direto, com espaçamento entre linhas de 0,45 m, a colheita foi realizada manualmente no dia 16/08/2015. As irrigações foram realizadas conforme a evapotranspiração potencial calculada diariamente pelos lisímetros e irrigados quando necessário por sistema de aspersão composto de 6 aspersores, com coeficiente de uniformidade de distribuição de 86%. Durante o desenvolvimento da cultura foram medidos diariamente a variação de massa dos microlisímetros por meio de pesagem, determinando a evaporação de água no solo em todas as fases da cultura. Durante o ciclo da cultura a temperatura média foi de 24,5°C e um aporte hídrico total de 571,4 mm. Os valores médios de Kcb obtidos na fase inicial, pleno desenvolvimento e maturação, foram de 0,7, 1,10 e 0,3 respectivamente.   Palavras-Chave: evapotranspiração, Zea mays L. subsp. everta, lisímetro de pesagem.     FARIA JUNIOR, C. A.; DALLACORT, R.; FREITAS, P. S. L. DE; BARBIERI, J. D.; REZENDE, R.; FENNER, W. DUAL CROP COEFFICIENT OF MAIZE CORN OF TANGARÁ DA SERRA – MT     2      ABSTRACT   The objective of this work was to determine the double coefficient of maize corn crop for the municipality of Tangará da Serra - MT, using weighing lysimeters. The experiment was conducted in State University of Mato Grosso – UNEMAT’s campus, and the soil was classified as dystroferric Red Latosol, with very clayey texture. Sowing was carried out on May 2, 2015, in the six weighing lysimeters, previously calibrated with determination coefficients above 0.99. For the border, a no-till seeding with row spacing of 0.45 m was used. Harvest was performed manually on 08/16/2015. Irrigations were performed according to the potential evapotranspiration calculated daily by the lysimeters and irrigated when necessary by a sprinkler system composed of 6 sprinklers, with distribution uniformity coefficient of 86%. During the development of the culture, mass variation of microlysimeters was measured daily by weighing, determining the evaporation of water in the soil in all phases of the culture. During the culture cycle the average temperature was 24.5 ° C and the total water supply was 571.4 mm. The average Kcb values obtained in the initial phase, full development and maturation phases were 0.7, 1.10 and 0.3 respectively.   Keywords: evapotranspiration, zea mays l. subsp. everta, weighing lysimeter.


Author(s):  
Tonny J. A. da Silva ◽  
Edna M. Bonfim-Silva ◽  
William Fenner ◽  
Thiago F. Duarte ◽  
Jefferson V. José ◽  
...  

ABSTRACT In the state of Mato Grosso, Brazil, wheat is an alternative to the current production system, mainly in irrigated crops, with new cultivars improved for this environment and system. The objective was to determine the evapotranspiration of the irrigated wheat crop and the dual coefficients of cultivars for the Brazilian Midwest. The experiment was conducted in the field using 12 weighing lysimeters and mini-lysimeters, filled by soil monoliths. The wheat cultivars BRS-254 and BRS-394 were used in the first and second years, respectively. Reference evapotranspiration was obtained by the Penman-Monteith equation and crop evapotranspiration by the mass difference in the lysimeters. Basal crop coefficient and soil water evaporation coefficient were determined according to the crop development stages in both years of cultivation. The mean ETc and ETo values were 3.87, 3.49 mm d-1 and 4.10 and 3.23 mm d-1, respectively, in the first and second cultivation cycles, with higher values of ETc recorded in the reproductive stages of the crop, flowering and grain filling. The basal crop coefficients and soil water evaporation coefficients estimated by weighing lysimeters composed of soil monoliths are: Kcb - 0.42, 0.78, 0.94, 0.74 and 0.47 and Ke - 0.72, 0.52, 0.39, 0.58 and 0.13 for the cultivar BRS-254, and Kcb - 0.28, 0.27, 0.65, 0.98 and 0.66 and Ke - 1.04, 0.96, 0.65, 0.34 and 0.51 for the cultivar BRS-394, at the stages of emergence, tillering, flowering, maturation and harvest, respectively.


2017 ◽  
Vol 2 (2) ◽  
pp. 430-438
Author(s):  
Ariswandi Putra ◽  
Ichwana Ichwana ◽  
Susi Chairani

Abstrak. Sistem irigasi curah pada penerapannya dapat menghemat air serta waktu yang dibutuhkan untuk menyiram tanaman. Sistem irigasi curah mendistribusikan air dari pompa air sebagai sumber tekanan melalui sistem perpipaan hidrolika dalam bentuk curahan air yang disemprotkan ke udara, kemudian curahan air tersebut jatuh ke tanah maupun akar-akar  tanaman. Ketinggian pipa merupakan salah satu faktor penting yang dapat menentukan kinerja sistem irigasi curah terhadap keseragaman distribusi atau penyebaran curahan air ke tanaman. Hasil penelitian ini menjelaskan bahwa ketinggian pipa memberi pengaruh terhadap semua parameter yang diamati, yakni koefisien keseragaman distribusi air (CU), laju penyiraman air dan jarak lempar air. Nilai rata-rata debit nozzle yang diperoleh adalah 3,4007 liter/menit dan nilai rata-rata laju penyiraman air 4897,032 mm/hari. Nilai koefisien keseragaman distribusi air adalah sebesar 99,017 % pada riser 15 cm, 99,015 % pada riser 20 cm dan 99,016 % pada riser 25 cm. Kemudian nilai rata-rata jarak lempar air 127,33 cm. Adapun untuk mengetahui pengaruh ketinggian pipa pada sistem irigasi curah adalah dengan menggunakan persamaan regresi linear. Maka nilai regresi linear yang dihasilkan adalah sebesar 75,4 % dari seluruh parameter yang diamati, yakni koefisien keseragaman distribusi air (CU), laju penyiraman air dan jarak lempar air. Kata kunci : Sistem irigasi curah, ketinggian pipa. Abstract. The sprinkler irrigation system in the application of bulk can save water as well as the time needed for watering plants. The sprinkler irrigation system to distribute the water from the water pump as the source pressure through the piping system hydraulics in the form of a drink of water that is sprayed into the air, then the water flow fell to the ground and the roots of plants. The riser is one of the important factors that can determine the performance of irrigation systems bulk of the uniform distribution or dissemination of water flow into the plant. The results of this study explains that the height of the pipe to give effect to all parameters were observed, namely water distribution coefficient of uniformity (CU), the rate of watering and water throwing distance. The average value obtained discharge nozzle is 3.4007 liters / min and the average value of the rate of watering 4897.032 mm / day. The coefficient of uniformity of water distribution is equal to 99.017% at 15 cm riser, the riser 99.015% 99.016% 20 cm and 25 cm on the riser. Then the average value of 127.33 cm water throwing distance. As for the height of the pipe to determine the effect on the bulk of irrigation systems is to use linear regression equation. Then the resulting linear regression value is equal to 75,4 % of all observed parameters, ie water distribution coefficient of uniformity (CU), the rate of watering and water throwing distance. Keywords : The sprinkler irrigation system, the riser.


Author(s):  
Diego Fernando Daniel ◽  
Rivanildo Dallacort ◽  
João Danilo Barbieri ◽  
Marco Antônio Camillo de Carvalho ◽  
Santino Seabra Júnior ◽  
...  

The objective of this work was to determine the dual coefficient of culture (Kc) of maize in monoculture and intercropping systems, as well as to evaluate the influence of intercropping on evapotranspiration and productive characteristics of maize second season. The experiment was carried out in the experimental field of the State University of Mato Grosso - UNEMAT in 2018, with three treatments: T1 - maize monoculture; T2 - Crotalaria monoculture and T3 - maize + Crotalaria. The crop evapotranspiration (ETc) of maize, Crotalaria, and maize + Crotalaria intercropping was determined daily by weight variation of weighing lysimeters, converted into mm day-1. The methodology used was that of dual Kc - FAO 56, dividing the crop coefficient (Kc), in soil evaporation coefficient (Ke), determined in microlysimeters, and basal crop coefficient (Kcb), determined in weighing lysimeters. The phenological phases of the maize crop were observed to determine the coefficients in the different developmental stages, being the Kc, Kcb, Ke in the phases: Initial (I), Development (II), Intermediate (III) and Final (IV). The accumulated culture evapotranspiration was 312.00; 436.16 and 422.38 mm and daily averages of 2.86; 4.00- and 3.88-mm d-1, respectively for monoculture maize, for Crotalaria and for intercropping. The Kc values for each phase of maize development in intercropping with crotalaria were: I (1.46); II (1.48); III (1.59) and IV (0.94). For maize monoculture, dual Kc values were: I (1.24), II (1.30), III (1.00) and IV (1.11) and for Crotalaria monoculture were: I (1.77), II (1.59), III (1.56) and IV (1.05).


2021 ◽  
Vol 34 (1) ◽  
pp. 119-131
Author(s):  
LAÍS TEREZA RÊGO TORQUATO REGINALDO ◽  
HAMURÁBI ANIZIO LINS ◽  
MATHEUS DE FREITAS SOUSA ◽  
TALIANE MARIA DA SILVA TEÓFILO ◽  
VANDER MENDONÇA ◽  
...  

ABSTRACT Weed interference is one of the factors that reduces carrot yield considerably. The aim of this study was to determine the periods of weed interference in carrots cultivated under two localized irrigation systems. The experiment used a completely randomized block design, with three replications, using the split plot scheme. The plots consisted of two irrigation systems (drip and micro sprinkler) and the subplots corresponded to the duration of coexistence of the crop with weeds, comprising periods of control (weed -free) or coexistence (with weeds) (0, 10, 20, 30, 40, 50, and 120 days after emergence (DAE) of the crop). Considering a yield loss of 2.5%, 5%, and 10% in marketable carrots, the beginning and end of the critical period of weed control (CPWC) was determined by adjusting a sigmoid model to the relative production data. The presence of the weed community throughout the crop cycle resulted in yield losses of up to 98%. The CPWP varied for the irrigation systems used. Carrot cultivation with and without competition, under the micro sprinkler irrigation system showed a higher yield than with the drip system. Considering a yield loss of 5%, the CPWC was 23 DAE and 7 DAE in the drip irrigation and micro sprinkler irrigation systems, respectively.


Author(s):  
Alinne da Silva ◽  
◽  
Vinícius I. Franzini ◽  
Cristiano D. Piccolla ◽  
Takashi Muraoka ◽  
...  

ABSTRACT The common bean has been considered to have low biological nitrogen fixation capacity; however, this process can be made more effective with molybdenum (Mo) supplementation. The objective of this study was to evaluate the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars using the 15N isotope dilution technique. The experiment was performed in 2014 in a completely randomized design arranged in a 5 x 3 factorial scheme, corresponding to 5 rates of Mo (control, 40, 80, 120 and 240 g ha-1), the common bean cultivars Aporé, Ouro Negro and NORH-54 (a non-nodulating common bean cultivar), and three replicates. The application of Mo and the inoculation with rhizobia strains contributed to improving nitrogen fixation and grain weight. The cultivar Ouro Negro showed a higher number and weight of nodules and a higher amount of nitrogen derived from the atmosphere than the cultivar Aporé. The biological nitrogen fixation of Aporé was more dependent on the application of Mo. These results indicated that inoculation with Rhizobium strains and Mo supply effectively contributed to biological nitrogen fixation and improving grain production.


Revista CERES ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 315-322 ◽  
Author(s):  
Vagner do Nascimento ◽  
Orivaldo Arf ◽  
Maria Aparecida Anselmo Tarsitano ◽  
Nayara Fernanda Siviero Garcia ◽  
Mariele de Souza Penteado ◽  
...  

ABSTRACT The previous cultivation of green manures and mechanical soil decompression are options to minimize compaction of the topsoil in no-tilage system (NTS) set in different production systems in the Brazilian Savannah. In addition, it is essential to relate these agricultural practices with the economic benefits generated through the production cycles. The objective of this study was to evaluate economically the effect of sporadic mechanical decompression of the soil and previous cultivation of green manure in the production and net gain margin of upland rice and "winter" common bean, under sprinkler irrigation, in NTS in lowland Brazilian savannah. This study was developed in the 2012/13 harvest and 2013 winter in Selvíria, state of Mato Grosso do Sul, in an clay texture Oxisol in the savanah in the state of Mato Grosso do Sul, in a randomized block design arranged in a 5 x 2 factorial arrangement with four replications. The treatments were a combination of five green manures (fallow (control), Cajanus cajan, Crotalaria juncea, Pennisetum glaucum and Urochloa ruziziensis) with and without mechanical soil scarification. The yields of upland rice and common bean grains were not influenced by the previous green manure cultivation; the upland rice grown in succession to Cajanus cajan in the presence of mechanical soil scarification provided greater increase in grain yield and higher gross margin profit. Beans cultivated in succession to Crotalaria juncea and Pennisetum glaucum in the presence of mechanical soil scarification, followed by rice cultivation, provided greater increases in grain yield and gross profit margins.


2016 ◽  
Vol 16 (2) ◽  
pp. 163-166 ◽  
Author(s):  
Helton Santos Pereira ◽  
Adriane Wendland ◽  
Thiago Lívio Pessoa Oliveira de Souza ◽  
Luís Cláudio de Faria ◽  
Maria José Del Peloso ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document