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1. Effect of Water Deficit on Secondary Metabolites and Nutrient Content on Forage Sorghum.

Author

Cunha, Tayna Lemos de Oliveira, Santana, Dthenifer Cordeiro, Theodoro, Gustavo de Faria, Seron, Ana Carina da Silva Cândido, Cunha, Fernando França da, Teodoro, Paulo Eduardo, Teodoro, Larissa Pereira Ribeiro, Ítavo, Luis Carlos Vinhas, Campos, Cid Naudi Silva, Silva, Manoel Gustavo Paranhos da, and Montaño, Alejandro Soares

Subjects
FEED analysis, METABOLITES, CROPS, WATER levels, AGRICULTURAL development, SORGHUM
Abstract

Agronomic properties are more likely to be impacted by water deficits that affect the nutrient uptake and production of secondary metabolites based on their timing and intensity. The aim of this study was to assess the effects of the water deficit on the nutritional quality of forage sorghum (Sorghum bicolor) hybrids. For that purpose, a factorial, completely randomized experiment was conducted by considering three forage sorghum hybrids (AGRI 002-E, BREVANT SS318, and BRS 658) and two levels of evapotranspiration water replacement (50% and 100% of ETc). Parameters relating to water consumption, secondary metabolites (isoflavones daidzein, daidzin, genistein, and genistin), leaf nutrients (P, K, Ca, Mg, S, Mn, and Zn), and bromatological attributes (dry matter, crude protein, neutral detergent fiber, and mineral material) were evaluated at the end of the crop cycle. Isoflavone levels differed between the hybrids and were highest in water-deficient sorghum. There was a significant interaction between the factors only for the daidzin. The leaf content of the other compounds was influenced either by hybrids (genistein) or by the replacement of evapotranspired water levels (daidzein). The leaf content of P and S was influenced by the interaction between the factors, while the levels of K, Ca, and Mg were influenced by the effect of a single factor. The leaf contents of Mn and Zn were not influenced by the treatments. There was a difference between the hybrids for dry mass and crude protein contents, and hybrids x water deficit was only significant for dry mass. The hybrids Brevant SS318 and BRS 658 had the highest crude protein. The presented results are novel and demonstrate that water deficits can significantly affect the levels of secondary metabolites and the nutritional quality of forage sorghum, depending on the hybrid. The mentioned indices are important parameters for evaluating the nutritional quality and development of agricultural crops, particularly in response to adverse environmental conditions such as water stress. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Irrigation of 'Prata-Anã' Banana with Partial Root-Zone Drying in a Semi-Arid Environment.

Author

Almeida, Felipe Pires de, Santos, Marcelo Rocha dos, Coelho, Eugênio Ferreira, Donato, Sérgio Luiz Rodrigues, Oliveira, Polyanna Mara de, Reis, João Batista Ribeiro da Silva, Carvalho, Luiz Antonio Conceição de, Lima, José Carlos Lopes de, Santos, Dionei Lima, and Cunha, Fernando França da

Subjects
SUSTAINABILITY, WATER efficiency, MICROIRRIGATION, SUSTAINABLE agriculture, SOIL moisture, BANANAS
Abstract

Considering the uncertainty of rainfall and prolonged droughts in semiarid regions, optimizing water management through techniques like partial root-zone drying (PRD) is crucial for sustainable banana production. This study aimed to evaluate the 'Prata-Anã Gorutuba' banana under irrigation by PRD. The experimental design was randomized blocks with five irrigation strategies (PRD7 50%–50% ETc and 7-day frequency of alternation of the irrigated side—FA, PRD14 50%–50% ETc and 14-day FA, PRD21 50%–50% ETc and 21-day FA, FX 50%–50% ETc and fixed irrigation, and irrigation with 100% ETc on both sides of the plant—FULL) with five replicates. Soil water content, physiological, vegetative, yield characteristics, and water productivity were assessed over two production cycles. PRD on the dry side lowered soil water content below optimal levels for banana cultivation, increased transpiration, and decreased photosynthesis and instantaneous water use efficiency with rising temperatures, while photosynthesis increased with stomatal conductance. PRD reduced plant vigor and delayed flowering in the first cycle. Compared to full and fixed irrigation, PRD conserves water while maintaining crop yields. Water productivity was higher under PRD, with PRD14 (50% ETc and 14-day alternation) offering the best water use efficiency while maintaining yield, making it suitable for 'Prata-Anã Gorutuba' banana cultivation. The study recommends PRD for sustainable banana farming in regions with limited water resources, contributing to sustainable agricultural practices and better water management. [ABSTRACT FROM AUTHOR]

Published
2024
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4. A preliminary experimental study simulating evapotranspiration process in TEvap tanks cultivated with different forages.

Author

Reis, Marine Cirino Grossi, Borges, Alisson Carraro, Ferreira, Fabrício Santos, Cunha, Fernando França da, and da Silva, Roselir Ribeiro

Subjects
FRESH water, ELECTRIC conductivity, ECOLOGICAL engineering, WEATHER, PENNISETUM, WETLANDS, CONSTRUCTED wetlands
Abstract

The evapotranspiration tank (TEvap) is a 'zero-discharge' ecotechnology for toilet water disposal. This work refers to a preliminary study to evaluate the influence of forages and the addition of a vertical soil strip on evapotranspiration (ET), electrical conductivity (EC) and pH in TEvap receiving fresh water. The factors studied were the forages and the soil strip, resulting in four treatments with three replications. Two plant growing seasons, cycle 1 and cycle 2, were monitored, during which the variables were measured every three and seven days, respectively. Weather variables were used to estimate the reference evapotranspiration and determine the TEvap coefficient (KTEvap). The accumulated ET for TEvap with Capiaçu was 27.93% and 45.89% greater than for TEvap cultivated with Tifton-85 during the first and second cycles, respectively. There were no significant differences in ET for TEvap with and without the soil strip. BRS Capiaçu also showed lower values for EC and pH. High values were obtained for KTEvap: 2.37 and 1.76 for TEvap cultivated with BRS Capiaçu and Tifton-85 grass, respectively. Considering the period of this study, the minimum area for 'zero-discharge' would be 5.70 m2 inhab−1 and 7.77 m2 inhab−1 by TEvap planted with BRS Capiaçu and Tifton-85 grass, respectively. Due to its greater capacity for evapotranspiration, it can be concluded that the BRS Capiaçu forage is suitable for a 'zero-discharge' constructed wetland systems. It is suggested that further, more-thorough studies be carried out to design a 'zero-discharge' TEvap, considering different weather conditions, crops and inlet toilet water. Evapotranspiration tank (TEvap) is a 'zero discharge' ecotechnology for disposing toilet water; A preliminary study was conducted to simulate the evapotranspiration in TEvap receiving fresh water; Two forages – Cynodon spp. (Tifton-85 grass) and Pennisetum spp. (BRS Capiaçu) – were cultivated in the tanks; 5.70 m2 inhab−1 were estimated for evapotranspiration with BRS Capiaçu and 7.77 m2 inhab−1 with Tifton-85 grass. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Uso de resíduo da indústria sucroalcooleira para a produção de mudas de quiabo

Author

Soares, Jaqueline Aparecida Batista, Gomes dos Santos, Luiz Fernando, Cunha, Fernando França da, Tavares, Germanna Gouveia, Giongo, Pedro Rogério, Silva Santos, Leonardo, Teixeira, Marconi Batista, Lopes Sobrinho, Oswaldo Palma, Paixão, Caroliny Fátima Chaves da, Soares, Jaqueline Aparecida Batista, Gomes dos Santos, Luiz Fernando, Cunha, Fernando França da, Tavares, Germanna Gouveia, Giongo, Pedro Rogério, Silva Santos, Leonardo, Teixeira, Marconi Batista, Lopes Sobrinho, Oswaldo Palma, and Paixão, Caroliny Fátima Chaves da

Abstract

The filter cake is a residue from the sugarcane processing industry and has shown excellent results for its use in fertilizing agricultural crops. The objective of this work was to evaluate the growth and development of okra seedlings produced with different proportions of filter cake as a substrate. The experiment was carried out under greenhouse conditions in a completely randomized design (CRD) with five treatments and five replicates (5x5). The treatments consisted of five proportions for filling the tubes with 0, 25, 50, 75 and 100% filter cake. The filter cake was obtained in a sugar and alcohol industry near the municipality of Santa Helena de Goiás. Were evaluated plant height (PH), stem diameter (SD), number of leaves (NL), root length (RL), aerial fresh mass (AFM), fresh root mass (FRM), aerial dry mass (ADM) and the dry root mass (DRM). The data were submitted to analysis of variance by the F test (p <0.05) and in cases of significance, regression analysis was performed for the filter cake proportions, using the SISVAR statistical software. The fertilization with filter cake on okra seedlings was significant at the level of 5% probability for the RL and 1% probability for PH, SD, NL, AFM, FRM, ADM, DRM. The maximum PH, SC, NL, RL, AFM, ADM, DRM was obtained with the filter cake proportions of 55.83; 49.58; 35.55; 47.25; 50.17; 48.5; 58.5 and 45.00%. The use of residues from the sugar and alcohol industry can be used for fertilizing okra seedlings. It is recommended to use the ratio of 55% filter cake and 45% soil, in that dose the okra seedlings show the best growth and development., A torta de filtro é um resíduo da indústria de processamento da cana-de-açúcar e tem apresentado ótimos resultados para sua utilização na adubação de culturas agrícolas. O objetivo desse trabalho foi avaliar o crescimento e desenvolvimento de mudas de quiabeiro produzidas com diferentes proporções de torta de filtro como substrato. O experimento foi conduzido em condições de casa de vegetação em delineamento experimental inteiramente casualizado (DIC) com cinco tratamentos e cinco repetições (5x5). Os tratamentos consistiram em cinco proporções para o preenchimento dos tubetes com torta de filtro de 0, 25, 50, 75 e 100%. A torta de filtro foi obtida em uma indústria sucroalcooleira próximo ao município de Santa Helena de Goiás. Foi avaliado a altura de plantas (AP), diâmetro de caule (DC), número de folhas (NF), comprimento de raiz (CR), massa fresca aérea (MFA), massa fresca da raiz (MFR), massa seca aérea (MSA) e a massa seca da raiz (MSR). Os dados foram submetidos à análise da variância pelo teste F (p<0,05) e em casos de significância, foi realizada análise de regressão para as proporções de torta de filtro, utilizando o software estatístico SISVAR. A adubação com torta de filtro em mudas de quiabo foi significativa ao nível de 5% de probabilidade para o CR e a 1% de probabilidade para AP, DC, NF, MFA, MFR, MAS, MSR. A máxima AP, DC, NF, CR, MFA, MFR, MAS, MSR foi obtido com as proporções de torta de filtro de 55,83; 49,58; 35,55; 47,25; 50,17; 48,5; 58,5 e 45,00%. O uso de resíduos da indústria sucroalcooleira pode ser utilizado para a adubação de mudas de quiabo. É recomendada a utilização da proporção de 55% de torta de filtro e 45% de solo, nessa dose as mudas de quiabo apresentam o melhor crescimento e desenvolvimento., La torta de filtro es un residuo de la industria de procesamiento de la caña de azúcar y ha mostrado excelentes resultados para su uso en la fertilización de cultivos agrícolas. El objetivo de este trabajo fue evaluar el crecimiento y desarrollo de plántulas de okra producidas con diferentes proporciones de torta de filtro como sustrato. El experimento se llevó a cabo en condiciones de invernadero en un diseño completamente al azar (DIC) con cinco tratamientos y cinco repeticiones (5x5). Los tratamientos consistieron en cinco proporciones para llenar los tubos con 0, 25, 50, 75 y 100% de torta de filtro. La torta de filtro se obtuvo en una industria azucarera y de alcohol cerca del municipio de Santa Helena de Goiás, se evaluó la altura de la planta (AP), el diámetro del tallo (DT), el número de hojas (NH), la longitud de la raíz (LR). masa fresca aérea (MFA), masa de raíz fresca (MRF), masa seca aérea (MSA) y masa de raíz seca (MRS). Los datos se sometieron al análisis de varianza mediante la prueba F (p <0.05) y, en casos significativos, se realizó un análisis de regresión para las proporciones de la torta de filtro, utilizando el software estadístico SISVAR. La fertilización con torta de filtro en plántulas de quingombó fue significativa a un nivel de 5% de probabilidad para el LR y 1% de probabilidad para AP, DT, NH, MFA, MRF, MSA, MRS. El AP, DT, NH, LR, MFA, MRF, MSA, MRS máximos se obtuvo con las proporciones de torta de filtro de 55,83; 49,58; 35,55; 47,25; 50,17; 48,5; 58.5 y 45.00%. El uso de residuos de la industria del azúcar y el alcohol se puede utilizar para fertilizar las plántulas de okra. Se recomienda usar la proporción de 55% de torta de filtro y 45% de tierra, en esa dosis las plántulas de okra muestran el mejor crecimiento y desarrollo.

Published
2020

23. Evapotranspiration and crop coefficients of Italian zucchini cultivated with recycled paper as mulch

Author

Oliveira, Reginaldo Miranda de, primary, Cunha, Fernando França da, additional, Silva, Gustavo Henrique da, additional, Andrade, Lucas Maltoni, additional, Morais, Caio Vieira de, additional, Ferreira, Pedro Maurício Oliveira, additional, Raimundi, Flávio Pereira Gomes, additional, Freitas, Agnaldo Roberto de Jesus, additional, Souza, Caetano Marciano de, additional, and Oliveira, Rubens Alves de, additional

Published
2020
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30. HS Cal software for the calibration of the Hargreaves-Samani equation

Author

Ferreira, Lucas Borges, Cunha, Fernando França da, Sediyama, Gilberto Chohaku, and Campos, Flavio Bastos

Subjects
agrometeorology, agrometeorologia, local calibration, evapotranspiração de referência, simplified models, irrigação, dados mínimos, reference evapotranspiration, modelos simplificados, minimum data, calibração local, irrigation
Abstract

The objective of this work was to develop a software (HS Cal) to calibrate the Hargreaves-Samani equation for specific periods of the year, in global, seasonal, and monthly time scales, as well as to compare the performance of calibrated and non-calibrated equations. The software was developed in order to use raw data provided by Banco de Dados Meteorológicos para Ensino e Pesquisa (BDMEP). All calibrations outperformed the original Hargreaves-Samani equation, especially with the use of seasonal and monthly calibrations. The HS Cal software can easily calibrate the Hargreaves-Samani equation, allowing the identification of the best form of this equation for a given site. Resumo: O objetivo deste trabalho foi desenvolver um programa (HS Cal) para calibrar a equação de Hargreaves-Samani para períodos específicos do ano, nas escalas global, sazonal e mensal, bem como comparar o desempenho das equações calibrada e não calibrada. O software foi desenvolvido para o uso de dados brutos fornecidos pelo Banco de Dados Meteorológicos para Ensino e Pesquisa (BDMEP). Todas as calibrações estudadas superaram a equação de Hargreaves-Samani original, especialmente com uso das calibrações sazonal e mensal. O programa HS Cal pode calibrar facilmente a equação de Hargreaves-Samani, o que possibilita a identificação da melhor forma desta equação para uma dada localidade.

Published
2019

34. Crop NDVI Monitoring Based on Sentinel 1

Author

Filgueiras, Roberto, primary, Mantovani, Everardo Chartuni, additional, Althoff, Daniel, additional, Fernandes Filho, Elpídio Inácio, additional, and Cunha, Fernando França da, additional

Published
2019
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40. Effect of irrigation and nitrogen fertilization on agronomic traits of sweet corn

Author

Souza, Epitácio José de, Cunha, Fernando França da, Magalhães, Fernando Fagner, Silva, Thiago Ramos da, and Santos, Osvaldir Feliciano dos

Subjects
drip irrigation, water use efficiency, Drip irrigation, Zea mays var. Saccharata Sturt, Water use efficiency, specialty corn, lcsh:Agriculture (General), Specialty corn, lcsh:S1-972
Abstract

A irrigação e a adubação nitrogenada são práticas de manejo que apresentam resultados positivos para a cultura do milho. Objetivou-se avaliar o efeito da adubação nitrogenada em cobertura e lâminas de irrigação sobre as características agronômicas de milho doce. Dois experimentos foram conduzidos em duas épocas de cultivo (inverno/primavera e verão/outono), em parcelas subdivididas, tendo-se nas parcelas quatro lâminas de irrigação (50 %, 75 %, 100 % e 125 % da evapotranspiração da cultura - ETc) e nas subparcelas quatro doses de nitrogênio em cobertura (0 kg ha-1, 100 kg ha-1, 200 kg ha-1 e 300 kg ha-1), aplicadas nos estádios V3 e V8, via ureia, em delineamento em blocos casualizados, com quatro repetições. Foram avaliados o teor de nitrogênio foliar, profundidade de raízes, altura de planta, diâmetro de colmo, produtividade de espigas e eficiência do uso da água. No inverno/primavera, a adubação nitrogenada não afetou a produtividade, enquanto, no verão/outono, a dose que maximizou a produtividade foi de 300 kg ha-1. O milho doce apresentou melhores resultados quando irrigado com reposições de 50 % e 125 % da ETc, respectivamente no verão/outono e inverno/primavera. Irrigation and nitrogen fertilization are management practices that have positive results for the corn crop. This study aimed at evaluating the effect of nitrogen fertilization and irrigation on agronomic traits of sweet corn. Two experiments were carried out in two crop seasons (winter/spring and summer/autumn), in a split-plot design, with the main plots consisting of four irrigation levels (50 %, 75 %, 100 % and 125 % of the crop evapotranspiration - ETc) and subplots consisting of four nitrogen doses (0 kg ha-1, 100 kg ha-1, 200 kg ha-1and 300 kg ha-1), applied at the V3 and V8 stages, via urea, in a randomized blocks design experiment, with four replications. Leaf nitrogen content, root depth, plant height, stem diameter, ear yield and water use efficiency were evaluated. In the winter/spring season, nitrogen fertilization did not affect yield, while in the summer/autumn season the dose that maximized yield was 300 kg ha-1. Sweet corn showed better results when irrigated with replacements of 50 % and 125 % of ETc, respectively in the summer/autumn and winter/ spring seasons.

Published
2015

41. NOTA TÉCNICA: GOTEJADORES E DISPOSITIVOS FINAL DE LINHA OPERANDO COM ÁGUAS CONTENDO MATERIAL ORGÂNICO

Author

Cunha, Fernando França da, Silva, Thiago Ramos da, Muchalak, Sofia Michele, Magalhães, Fernando Fagner, and Silva, Simone Quintão

Subjects
Sólidos totais, Irrigação localizada, Uniformidade de aplicação
Abstract

This study aimed to evaluate the performance of a dripper and of a self-cleaning valve operating with water containing different concentrations of total solids. The experiment was conducted in sub-subplots design, having on the plots two line endings (conventional and self-cleaning valve), in the subplots five waters with total solids concentrations (7 mg L-1, 407 mg L-1, 1,007 mg L-1, 2,007 mg L-1, 4,007 mg L-1) and on the sub-subplots 60 reviews of irrigation system, on the completely randomized design with three replications. In the end of the trial period, each dripper applied a cumulative volume of 1.44 m³. The parameters evaluated were: flow and the uniformities of water applications through the distribution coefficients (DU), Christiansen (CU) and statistical (US). The performance of drippers tested is not affected by application of water containing total solids concentrations less than 17.7 and 44.8 mg L-1 in irrigation systems equipped with line endings conventional and self-cleaning, respectively. Irrigation systems equipped with self-cleaning line endings provide better performance of drippers when operating with water containing total solids concentrations of the 407 mg L-1. Este trabalho tem por objetivo avaliar o desempenho de gotejador e válvula autolimpante operando com águas contendo diferentes concentrações de sólidos totais. O experimento foi conduzido em esquema de parcelas sub-subdivididas, tendo nas parcelas dois tipos de finais de linha (convencional e válvula autolimpante), nas sub-parcelas águas com cinco concentrações diferentes de sólidos totais (7 mg L-1, 407 mg L-1, 1.007 mg L-1, 2.007 mg L-1, 4.007 mg L-1) e nas sub-sub-parcelas 60 avaliações do sistema de irrigação, no delineamento inteiramente causalizado, com três repetições. No final do período experimental cada gotejador aplicou o volume acumulado de 1,44 m3. Os parâmetros avaliados foram a vazão e as uniformidades de aplicação de água calculados por meio dos coeficientes de distribuição, Christiansen e estatístico. Águas contendo concentrações de sólidos totais inferiores a 17,7 e 44,8 mg L-1 aplicadas em sistemas equipados com finais de linha convencionais e autolimpantes, respectivamente, não afetaram o desempenho dos gotejadores. Sistemas de irrigação equipados com finais de linha autolimpantes proporcionaram melhor desempenho dos gotejadores operando com águas contendo 407 mg L-1 de sólidos totais.

Published
2017
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49. NOTA TÉCNICA: USO DO SOFTWARE INTECPERÍMETRO® NO MANEJO DA IRRIGAÇÃO DO FEIJOEIRO

Author

Ferreira, Francisco Edson Paulo, Pereira, Silvio Bueno, Martinez, Mauro Aparecido, Soares, Adilson Rodrigues, and Cunha, Fernando França da

Subjects
feijão, pivô central, Hargreaves-Samani, agricultura irrigada
Abstract

This study aimed to evaluate the irrigation management in the irrigated perimeter by central pivot of bean crops through the IntecPerímetro® software. The software was powered with climate, crop and soils data and the ones from the irrigation equipment. The evaluation of irrigation management us lots It is given by through the comparison of values average blade applied and operation time the irrigation equipment practiced by irrigating and calculated through the use of IntecPerímetro® software in all the stages of development culture, through “t” test in Student at the level 5% probability. The water blade calculated by the software was less than the one performed by the irrigator, showing a medium potential in water savings of 28.3%. The humidity values obtained in the field by the microwave oven method did not differ statistically the humidity from increase irrigation performed by irrigator calculated by the software. Objetivou-se com o presente trabalho utilizar o software IntecPerímetro® na avaliação do manejo da irrigação na cultura do feijão. O software foi alimentado por dados de clima, cultura, solo e os referentes ao equipamento de irrigação. A avaliação do manejo da irrigação procedeu-se pela comparação entre os valores médios de lâmina aplicada e tempo de funcionamento do equipamento de irrigação praticados pelo irrigante e calculados por meio do uso do software IntecPerímetro® em todas as fases de desenvolvimento da cultura, por meio do teste “t” de Student ao nível de 5% de probabilidade. A lâmina média de irrigação proposta pelo software foi 28,3% menor que a praticada pelo irrigante. Os valores de umidades obtidas em campo pelo método do forno micro-ondas não diferiram estatisticamente da umidade referente à lâmina de irrigação executada pelo irrigante utilizando o software.

Published
2016
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50. CARACTERÍSTICAS DA ESPIGA DO MILHO DOCE PRODUZIDO SOB DIFERENTES LÂMINAS DE IRRIGAÇÃO E DOSES NITROGENADAS

Author

Souza, Epitácio José de, Cunha, Fernando França da, Magalhães, Fernando Fagner, Silva, Thiago Ramos da, and Santos, Osvaldir Feliciano dos

Subjects
adubação, irrigação por gotejamento, Zea mays var. Saccharata Sturt, sazonalidade
Abstract

This study aimed to evaluate the sweet corn cob characteristics under different levels of nitrogen fertilization and irrigation depths in two cropping seasons in northeastern region of Mato Grosso do Sul, Brazil. The experiment was conducted in of split plot scheme, having in the plots four irrigation depths (50, 75, 100 and 125% of crop evapotranspiration-ETc) and in the subplots, four nitrogen rates (0, 100, 200 and 300 kg ha-1) and in the sub-subplots, two cropping seasons (Winter/Spring and Summer/Autumn), in the randomized blocks design with four replication. The following characteristics were evaluated: straw number, ear length, ear diameter, kernels number per row, rows number, cob diameter, grain length, grains number and ear weight. Sweet corn showed higher ear quality at the Summer/Autumn season and was not affected by nitrogen fertilization. At the time Winter/Spring season, sweet corn should be irrigated with replacement of 85% of ETc, while in Summer/Autumn season with 50% ETc. Objetivou-se, neste trabalho, avaliar as características da espiga do milho doce produzido sob diferentes doses de adubação nitrogenada e lâminas de irrigação, em duas épocas de cultivo na região nordeste do Mato Grosso do Sul. O experimento foi conduzido em parcelas subsubdivididas, tendo nas parcelas quatro lâminas de irrigação (50, 75, 100 e 125% da evapotranspiração da cultura - ETc), nas subparcelas quatro doses de nitrogênio em cobertura (0, 100, 200 e 300 kg ha-1) e nas sub-subparcelas duas épocas de cultivo (Inverno/Primavera e Verão/Outono), no delineamento em blocos casualizados, com quatro repetições. Foram avaliadas as características: número de palha por espiga, comprimento de espiga, diâmetro de espiga, número de grãos por fileira, número de fileiras por espiga, diâmetro de sabugo, comprimento de grão, número de grãos por espiga e peso de espiga. O milho doce apresentou maior qualidade de espiga na época Verão/Outono e não foi afetado pela adubação nitrogenada. Na época Inverno/Primavera, o milho doce deve ser irrigado com reposição de 85% da ETc, enquanto que no Verão/Outono, com 50% da ETc.

Published
2016
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