Crescimento inicial do milho sob doses de esterco caprino e disponibilidade de água no solo

Objetivou-se estudar a emergência e o crescimento inicial de plantas de milho adubadas com esterco caprino sob dois regimes de disponibilidade de água no solo. O arranjo dos tratamentos constituiu um fatorial 4 x 2, correspondentes a quatro doses de esterco caprino (0, 4, 8 e 12 t ha-1) e dois níveis de água disponível de 50 e 100% da capacidade de campo, mantido após as irrigações do solo, com 8 tratamentos e quatro repetições, totalizando as 32 unidades experimentais. O ensaio foi realizado em unidades experimentais compostas por vasos de 18 dm3 de capacidade, semeando manualmente quatro sementes por vaso. As plantas foram conduzidas por 20 dias após a semeadura, sendo avaliadas quanto à emergência, o crescimento inicial e o acúmulo de massa seca. A redução de 50% de água no solo não exerce impactos negativo sobre a emergência e crescimento inicial das plantas de milho AG1051. A dose de esterco caprino de 12 t ha-1 promoveu o maior crescimento e acúmulo de massa seca das plantas de milho.Initial growth of maize under manure goat doses and water availability in soilAbstract: The objective was to study the emergence and initial growth of corn plants fertilized with goat manure under two water availability regimes in soil. The treatment arrangement consisted of a 4 x 2 factorial, corresponding to four doses of goat manure (0, 4, 8 and 12 t ha-1) and two levels of available water of 50 and 100% of field capacity, maintained after The soil irrigations, with 8 treatments and four replications, totalizing the 32 experimental units. The experiment was carried out in experimental units composed of pots of 18 dm3 of capacity, manually seeding four seeds per pot. The plants were conducted for 20 days after sowing, where they were evaluated for emergence, initial growth and dry mass accumulation. The reduction of 50% of water in the soil does not have a negative impact on the emergence and initial growth of AG1051 maize plants. The dose of goat manure of 12 t ha-1 promoted the highest growth and accumulation of dry mass of maize plants.

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Doses de esterco de galinha e água disponível sob o desenvolvimento inicial do milho

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v11i5.4667 ◽

2016 ◽

Vol 11 (5) ◽

pp. 64

Author(s):

Francisco Marto de Souza ◽

Ellen Caroline Santos Lima ◽

Francisco Vanies da Silva Sá ◽

Lauter Silva Souto ◽

Jonathan Estivens Soares Araújo ◽

...

Keyword(s):

Dry Mass ◽

Chicken Manure ◽

Initial Growth ◽

Font Size ◽

Initial Development ◽

Available Water ◽

Chicken Litter ◽

Soil Irrigation ◽

Maize Plants ◽

Corn Plants

Objetivou-se estudar o desenvolvimento inicial de plantas de milho sob níveis de irrigação e doses de esterco de galinha. O experimento foi conduzido em condições de túnel plástico da Universidade Federal de Campina Grande, Campus de Pombal, Paraíba, no período de Dezembro de 2014 a janeiro de 2015. O arranjo dos tratamentos constituiu um fatorial 5 x 2, correspondentes a cinco doses de cama de frango e dois níveis de água disponível (AD) de 50 e 100% da CC, mantido após as irrigações do solo, com 10 tratamentos e quatro repetições, totalizando as 40 unidades experimentais. O ensaio foi realizado em unidades experimentais compostas por vasos de 18 dm3 de capacidade, semeando manualmente quatro sementes por vaso. As plantas foram conduzidas por 20 dias após a semeadura, onde foram avaliadas quanto a emergência, o crescimento inicial e o acúmulo de massa seca. As doses de 8,4 e 8,5 t ha-1 promovem o maior crescimento das plantas de milho na fase inicial de crescimento. Não houve influência da água disponível e da interação água disponível e as doses de cama de frango sobre a emergência e crescimento da plantas de milho cultivar AG 051 durante os primeiros 20 após a semeadura. Doses of chicken manure and water available under the initial development of maizeAbstract<span style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: PT-BR;" lang="EN-US">: The objective was to study the initial development of corn plants under irrigation levels and doses of chicken manure. The experiment was carried out in plastic tunnel conditions of the Federal University of Campina Grande, Campus of Pombal, Paraíba, from December 2014 to January 2015. The treatment arrangement consisted of a 5 x 2 factorial, corresponding to five doses of chicken litter and two levels of available water (AD) of 50 and 100% CC, maintained after soil irrigation with 10 treatments and four replications, Totaling the 40 experimental units. The experiment was carried out in experimental units composed of vessels of 18 dm3 capacity, manually seeding four seeds per pot. The plants were conducted for 20 days after sowing, where they were evaluated for emergence, initial growth and accumulation of dry mass. The doses of 8.4 and 8.5 t ha-1 promote the highest growth of maize plants in the initial phase of growth. There was no influence of available water and the interaction of available water and broiler litter doses on the emergence and growth of AG 051 maize plants during the first 20 years after sowing.Não houve influência da água disponível e da interação água disponível e as doses de cama de frango sobre a emergência e crescimento da plantas de milho cultivar AG 051 durante os primeiros 20 após a semeadura.

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CRESCIMENTO INICIAL E DIAGNOSE NUTRICIONAL DE PLANTAS DE MILHO CULTIVADAS COM OMISSÃO DE MACRONUTRIENTES EM ARGISSOLO

Nativa ◽

10.31413/nativa.v8i4.9033 ◽

2020 ◽

Vol 8 (4) ◽

pp. 567-571

Author(s):

Janderson Carmo Lima ◽

Marilza Neves Nascimento ◽

Railda Santos Jesus ◽

Alismário Leite Silva ◽

Anacleto Ranulfo Santos ◽

...

Keyword(s):

Zea Mays ◽

Growth Parameters ◽

Nitrogen Concentration ◽

Dry Mass ◽

Initial Growth ◽

Randomized Design ◽

Sexual Propagation ◽

Maize Plants ◽

Phosphorus And Potassium ◽

Corn Plants

O objetivo do trabalho foi avaliar o crescimento inicial e diagnose nutricional de plantas de milho cultivadas com omissão de macronutrientes em Argissolo. O experimento foi desenvolvido em estufa, tendo como substrato Argissolo amarelo distrocoeso, utilizou-se vasos com capacidade de 3 dm³, tendo como tratamentos: Solo sem adubação, Adubação referência e omissão de nitrogênio (N), fósforo (P) e potássio (K) respectivamente, mantendo cinco repetições por tratamento, totalizando 25 unidades experimentais, em delineamento inteiramente casualizado. Foi realizado o plantio via propagação sexuada e após uma semana foi feito o desbaste, deixando apenas uma planta por vaso. Aos 30 dias após a aplicação dos tratamentos, foram avaliados os parâmetros de crescimento: altura das plantas, número de folhas, diâmetro do colmo, massa seca (MS) da parte aérea (PA) e raiz (R), além das determinações nutricionais: concentração de nitrogênio, fósforo e potássio na PA e R. Os resultados encontrados foram submetidos a análise de variância e posteriormente ao teste de medias de acordo a significância. O crescimento inicial das plantas de milho foi severamente comprometido com a ausência dos nutrientes N e P, destacando assim a importância dessa suplementação. A diagnose nutricional mostrou que a omissão dos macronutrientes comprometeu o acúmulo desses elementos. Palavras-chave: gramíneas; fertilidade do solo; nutrição mineral de plantas; Zea mays. Initial growth and nutritional diagnosis of maize plants cultivated with omission of macronutrients in argissolo ABSTRACT: The objective of this work was to evaluate the initial growth and nutritional diagnosis of corn plants cultivated with omission of macronutrients in Argisol. The experiment was carried out in a greenhouse with subsoil yellow dystrocoes, using pots with a capacity of 3 dm³, using as treatments: Soil without fertilization, reference fertilization and omission of nitrogen (N), phosphorus (P) and potassium (K), maintaining five replicates per treatment, totaling 25 experimental units in a completely randomized design. Planting was carried out via sexual propagation and after one week the thinning was done, leaving only one plant per pot. At 30 days after application of the treatments, growth parameters were evaluated: plant height, leaf number, shoot diameter, shoot dry mass (AP) and root (R), in addition to the nutritional determinations: nitrogen concentration, phosphorus and potassium in PA and R. The results were submitted to analysis of variance and later to the test of means according to significance. The initial growth of corn plants was severely compromised by the absence of N and P nutrients, thus highlighting the importance of this supplementation. The nutritional diagnosis showed that omission of macronutrients compromised the accumulation of these elements. Keywords: grasses; soil fertility; mineral nutrition of plants; Zea mays.

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ROOT SYSTEM IN MAIZE PLANTS CULTIVATED UNDER WATER DEFICIT AND APPLICATION OF CHITOSAN

Revista Brasileira de Milho e Sorgo ◽

10.18512/rbms2020v19e1131 ◽

2020 ◽

Vol 19 ◽

pp. 11

Author(s):

LORENA GABRIELA ALMEIDA ◽

EDER MARCOS DA SILVA ◽

PAULO CÉSAR MAGALHÃES ◽

DÉCIO KARAM ◽

CAROLINE OLIVEIRA DOS REIS ◽

...

Keyword(s):

Plant Growth ◽

Root System ◽

Water Deficit ◽

Water Availability ◽

Agricultural Production ◽

Negative Effects ◽

Flowering Stage ◽

Specific Behavior ◽

Maize Plants ◽

Corn Plants

Low water availability is characterized as an abiotic stressthat limits the agricultural production. Due to the physical and chemicalcharacteristics of the chitosan (CHT), this substance might stimulatephysiological responses on plants to tolerate the water deficit. In this sense,we submitted corn plants to water deficit and application of chitosan on theleaves (140 mg/L) during pre flowering stage. It were analyzed two cornhybrids genotypes contrasting for water deficit tolerance: DKB 390 (tolerant)and BRS1010 (sensitive). Then, we performed evaluations on the rootsystem and production components. Corn plants submitted to the applicationof chitosan presented a specific behavior: when compared the hybrids,the tolerant one presented a root system that was more developed and anexpressive agronomical yield. These results highlight the fact that the chitosanstimulates plant growth, enhancing their root system and contributing toincrease the availability and absorption of water and nutrients. The chitosanpresents a potential to reduce the negative effects of water deficit on the rootsystems, without compromising the agronomical yield.

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ROOT SYSTEM IN MAIZE PLANTS CULTIVATED UNDER WATER DEFICIT AND APPLICATION OF CHITOSAN

Revista Brasileira de Milho e Sorgo ◽

10.18512/1980-6477/rbms.v19n1p11 ◽

2020 ◽

Vol 19 ◽

pp. 11

Author(s):

LORENA GABRIELA ALMEIDA ◽

EDER MARCOS DA SILVA ◽

PAULO CÉSAR MAGALHÃES ◽

DÉCIO KARAM ◽

CAROLINE OLIVEIRA DOS REIS ◽

...

Keyword(s):

Plant Growth ◽

Root System ◽

Water Deficit ◽

Water Availability ◽

Agricultural Production ◽

Negative Effects ◽

Flowering Stage ◽

Specific Behavior ◽

Maize Plants ◽

Corn Plants

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Initial performance of maize in response to NPK fertilization combined with Herbaspirillum seropedicae

Revista CERES ◽

10.1590/s0034-737x2012000600015 ◽

2012 ◽

Vol 59 (6) ◽

pp. 841-849 ◽

Cited By ~ 6

Author(s):

Marihus Altoé Baldotto ◽

Lílian Estrela Borges Baldotto ◽

Rogério Batista Santana ◽

Cláudio Roberto Marciano

Keyword(s):

Dry Mass ◽

Plant Growth Promoting Bacteria ◽

Initial Growth ◽

Herbaspirillum Seropedicae ◽

Biotechnological Approach ◽

Plant Growth Promoting ◽

Maize Plants ◽

Growth Promoting ◽

Treatment Application ◽

Npk Fertilization

The inoculation with plant growth-promoting bacteria can be a technological approach useful for increasing the production of maize. The objective of this study was to evaluate the initial performance of maize in response to application of doses of NPK combined with the inoculation of the diazotrophic bacteria Herbaspirillum seropedicae in an greenhouse experiment. The experiment consisted of six fertilizer levels: 0, 25, 50, 75, 100 and 200% of the recommended dose of NPK applied to maize inoculated and non-inoculated with H. seropedicae. At 30 days after the treatment application, the growth characteristics and nutritional status of the plants were evaluated. Plant development was influenced by fertilization, but it was enhanced by combination with the bacteria, which resulted in significant increases in the dry mass of shoots (7%) and leaf area (9%) when compared with non-inoculated plants. The results showed increases in the concentration of N (11%), P (30%) and K (17%) of maize plants in response to bacterial inoculation together with NPK compared with plants that were applied fertilize only. The greater consistency and stability response of the host plant to bacterization in the presence of chemical fertilizer indicate a promissory biotechnological approach for improving the initial growth and adaptation of maize to the cultivation environment.

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Growth Analysis of Sourgrass: Does Herbicide Resistance Affect Its Development?

Journal of Agricultural Science ◽

10.5539/jas.v11n11p214 ◽

2019 ◽

Vol 11 (11) ◽

pp. 214

Author(s):

Fernando Storniolo Adegas ◽

Dionísio Luiz Pisa Gazziero ◽

Alexandre Ferreira da Silva ◽

Germani Concenço

Keyword(s):

Leaf Area ◽

Growth Analysis ◽

Management Strategies ◽

Dry Mass ◽

Area Ratio ◽

Initial Growth ◽

Factor B ◽

Relative Growth ◽

Net Assimilation ◽

Mass Accumulation

Sourgrass (Digitaria insularis) is highlighted as one of the most troublesome weeds in Brazilian agriculture. The growth analysis of the species and biotypes with resistance to glyphosate are preponderant to support management strategies. In this way, the aim of this work is to compare the growth of biotypes resistant and susceptible to glyphosate, and to characterize the species growth in field conditions. The greenhouse experiment was installed in randomized blocks design, in factorial scheme 2 × 10, with eight replications. Factor A comprised the biotypes, and factor B the fortnight evaluations. The dry mass of roots, stems, leaves and shoot were assessed, besides leaf area and plant height. From these variables, the relative growth rate, net assimilation rate and leaf area ratio were calculated. For the field experiment, the same variables were assessed and the same parameters were calculated, without distinction on resistant or susceptible biotype. The biotype with resistance to glyphosate did not show adaptative disadvantages compared to the susceptible one. In this way, it is necessary to prevent the entry of resistant biotypes in cropped fields, as once established the area may not naturally return to the initial frequency of susceptible biotypes. Sourgrass shown slow initial growth and dry mass accumulation up to 42 days after emergence, indicating that control of this specie should be performed preferably before this period.

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Co-inoculation of Anabaena cylindrica and Azospirillum brasilense during initial growth and chloroplast pigments of corn

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v26n2p97-102 ◽

2022 ◽

Vol 26 (2) ◽

pp. 97-102

Author(s):

Osvaldo Matsuo ◽

Claudemir Zucareli ◽

Eduardo H. Horácio ◽

Luiz A. R. Alves ◽

Otavio J. G. A. Saab

Keyword(s):

Azospirillum Brasilense ◽

Photosynthetic Pigment ◽

Dry Mass ◽

Initial Growth ◽

Anabaena Cylindrica ◽

Corn Hybrids ◽

Chloroplast Pigments ◽

Randomized Design ◽

Corn Plants ◽

Biological Nitrogen

ABSTRACT Although the isolated effects of the cyanobacteria Anabaena cylindrica and the bacteria Azospirillum brasilense are well-known, the co-inoculation of both can promote other benefits to corn plants’ biological nitrogen fixation and growth. The aim was to evaluate the initial growth and chloroplast pigment levels of corn hybrids co-inoculated with A. brasilense and A. cylindrica. The experiment was conducted in greenhouse conditions using the completely randomized design in a factorial scheme 2 × 4 with two hybrids, Balu 184 and Balu 280 Pro, and four inoculation treatments: no inoculation, inoculation of A. cylindrica, inoculation of A. brasilense, and the co-inoculation of A. cylindrica + A. brasilense. Co-inoculation resulted in higher root growth and dry mass of the aerial part in both hybrids; however, the hybrid Balu 280 Pro presented higher responsivity. The co-inoculation of A. brasilense and A. cylindrica increased initial corn growth without altering the photosynthetic pigment levels.

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Fluorescence and Growth of Eggplant under Irrigation Levels and Silicon Doses

Journal of Experimental Agriculture International ◽

10.9734/jeai/2019/v36i430240 ◽

2019 ◽

pp. 1-10

Author(s):

Reynaldo Teodoro de Fatima ◽

Jackson Silva Nobrega ◽

Daniel De Almeida Carreiro ◽

Amaralina Celoto Guerrero ◽

Adriana Silva Lima ◽

...

Keyword(s):

Quantum Yield ◽

Water Deficit ◽

Block Design ◽

Field Capacity ◽

Dry Mass ◽

Irrigation Level ◽

Randomized Complete Block Design ◽

Influence Of Water ◽

Irrigation Levels ◽

Mass Accumulation

Aims: The study was conducted to evaluate the fluorescence and growth of eggplant under influence of water deficit and silicon doses. Study Design: The design was a randomized complete block design, in a 5 x 2 factorial arrangement, with four replications and one plant per plot, totaling 40 experimental units. Length and Place of Study: The research was implemented between September and November 2016, in a greenhouse of the Center of Science and Technology Agrifood, at the Federal University of Campina Grande (UFCG / CCTA), Campus of Pombal-PB, Brazil. Methods: Doses of 0, 75, 150, 225 and 300 mg L-1 of silicon and the irrigation slides of 50 and 100% of real evapotranspiration - ETr were used, which were obtained by weighing the pots daily in order to keep the weight close to the field capacity. Results: The use of 50% level of the ETr provides reductions of 5.58; 7.92 and 6.84% of fluorescence in the initial, maximum and quantum yield of the photosystem. The fresh and dry mass of the stem presented the maximum productivity (140.8 and 48.1 g) in the plants irrigated with 100% Etr and treated with doses of 106 and 110 mg L-1 of Si. Conclusion: The fluorescence and biomass of the eggplant plants is reduced with the decrease in irrigation level; while the application of silicon does not result in increment in the fluorescence and dry mass of the leaf. The 100% irrigation level of the ETr associated with the application of 108 mg L-1 of silicon resulted in the best results in stem mass accumulation.

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Influência da adubação orgânica no desenvolvimento do feijão-vagem em diferentes níveis de água de irrigação

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v11i5.4601 ◽

2016 ◽

Vol 11 (5) ◽

pp. 01

Author(s):

Ivando Comandante de Macedo Silva ◽

Joseano Graciliano da Silva ◽

Bárbara Genilze Figueiredo Lima Santos ◽

Maila Vieira Dantas ◽

Tiago Silva Lima

Keyword(s):

Irrigation Water ◽

Organic Fertilizer ◽

Field Capacity ◽

Dry Weight ◽

Dry Mass ◽

Water Levels ◽

Snap Beans ◽

Shoot Dry Weight ◽

Number Of Leaves ◽

Goat Manure

A cultura do feijão-vagem possui ampla adaptação edafoclimática, podendo ser cultivado durante todo o ano em grande parte dos estados brasileiros, entretanto, fatores como o manejo do solo, sendo este fundamental para obtenção de maior sucesso de produção e o volume inadequado da água de irrigação limita sua produção principalmente nas regiões semiáridas. Com isso, o presente trabalho objetivou avaliar a influência de fontes de adubação orgânica no desenvolvimento do feijão-vagem cv. ‘Macarrão’ submetido a diferentes níveis de água de irrigação. Os tratamentos avaliados foram: duas fontes de adubação orgânica (esterco caprino e bovino) mais a testemunha (sem adubação) e quatro níveis de água de irrigação (40%; 60%; 80% e 100% da capacidade de campo). Foi adotado o delineamento experimental em blocos casualisados, com arranjo fatorial 3 x 4, sendo o primeiro fator as fontes de adubação orgânica mais a ausência da mesma e o segundo fator os quatro níveis de água de irrigação, com quatro repetições totalizando 48 unidades experimentais. Aos 40 dias após a semeadura foram avaliadas as seguintes variáveis: diâmetro do colo, número de folhas, comprimento da raiz, massa fresca da parte aérea, massa fresca da raiz, massa fresca total, massa seca da parte aérea, massa seca da raiz e massa seca total. Plantas de feijão-vagem cv. ‘macarrão’ apresenta maior desenvolvimento quando cultivada a 100% da capacidade de campo, onde associada a adubação orgânica via esterco caprino favorece a produção de plantas com maior qualidade.Influence of organic fertilizer in the development of snap beans in different irrigation water levelsAbstract: The snap bean crop has extensive edaphoclimatic adaptation and can be grown throughout the year in most Brazilian states, However, factors such as soil management, which is critical to getting the most successful production and inadequate volume of irrigation water limits its production mainly in semiarid regions. Thus, this study aimed to evaluate the influence of sources of organic fertilizer in the development of plants of bean pod cv. 'Macaroni' under different irrigation water levels. The treatments were: two sources of organic fertilizer (manure goats and cattle) more witness (without fertilizer) and four irrigation water levels (40%, 60%, 80% and 100% of field capacity). The experimental design was adopted in randomized blocks with factorial 3 x 4, the first factor the organic fertilizer more witness thereof and the second factor the four irrigation water levels, with four repetitions totaling 48 experimental units. At 40 days after sowing the following variables were evaluated: stem diameter, number of leaves, root length, fresh weight of aerial part, fresh root mass, total fresh mass, shoot dry weight, root dry mass and total dry mass. plants of bean pod cv. 'Macaroni' It has higher development when grown to 100% field capacity related to irrigation water, where associated with organic fertilizer via goat manure favors the production of plants with higher quality.

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Effect of Limited Irrigation and Nitrogen on Ecological Index and Water Use of Arabica Coffee

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.807-809.746 ◽

2013 ◽

Vol 807-809 ◽

pp. 746-749

Author(s):

Xiao Gang Liu ◽

Yuan Zhong ◽

Xin Le Wang ◽

Qi Liang Yang

Keyword(s):

Soil Moisture ◽

Moisture Content ◽

Water Use ◽

Deficit Irrigation ◽

Soil Moisture Content ◽

Field Capacity ◽

Dry Mass ◽

Arabica Coffee ◽

Use Efficiency ◽

Mass Accumulation

The objective of this study was to explore the water and nitrogen coupling use efficiency and optimal control of water and nitrogen environment, Pot experiment was conducted in intelligent greenhouse, and the interactive impact of water and nitrogen on ecological characteristics and water use of arabica coffee was investigated. Using four irrigation levels, i.e. sufficient irrigation (SI, soil moisture content was 75%~85% of soil field capacity), light deficit irrigation (DI1, soil moisture content was 65%~75% of soil field capacity), medium deficit irrigation (DI2, soil moisture content was 55%~65% of soil field capacity) and serious deficit irrigation (DI3, soil moisture content was 45%~55% of soil field capacity), and four fertilizer levels of N, i.e. high nitrogen (NH), medium nitrogen (NM ), low nitrogen (NL), non-nitrogen (NN). The results showed that increase of irrigation or N rate was helpful to improve the ecological and morphological index of arabica coffee (plant height, basal stem, leaf area and shoot length). Compared to the NN treatment, N application could increase dry mass accumulation and water use efficiency (WUE) by 10.88%~37.49% and 24.73%~33.01% respectively. Compared to the DI3 treatment, increase of irrigation could increase dry mass accumulation and WUE by 82.54%~163.27% and 34.40%~39.66% respectively. Low nitrogen combined sufficient irrigation treatment could promote morphological characteristics of arabica coffee seedling and ensure higher dry mass accumulation and WUE simultaneously.

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