scholarly journals Nutritional Status and Productive Components of Maize Fertilized With Sewage Sludge

2018 ◽  
Vol 10 (6) ◽  
pp. 86
Author(s):  
Carlos Cesar Breda ◽  
Renan Francisco Rimoldi Tavanti ◽  
Onã Da Silva Freddi ◽  
Tauan Rimoldi Tavanti ◽  
Aline Regina Piedade ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Grain Yield ◽  
Repeated Measures ◽  
Block Design ◽  
Mineral Fertilizer ◽  
Mineral Fertilizers ◽  
Randomized Block Design ◽  
Productive Potential ◽  
Phosphorus And Potassium ◽  
Maize Fertilization

The response of crops to the application of biofertilizers in the soil is not yet well established. Therefore, we carried out this study with the objective of evaluating the productive potential of maize fertilized with doses of sewage sludge, comparing with the use of mineral fertilizer over four agricultural seasons. The experiment was conducted in a Red Dystroferric Nitosol (Ultisol) in a randomized block design and repeated measures in time. The treatments consisted of five doses of sewage sludge and one treatment using nitrogen, phosphorus and potassium in formulation. All fertilizations were carried out at maize sowing at four planting times (summer and 2nd crop of 1st agricultural year and, summer and 2nd crop of 2nd agricultural year) and replicates. The results showed a cumulative increase in the P, Ca, Mg and Zn leaf concentrations over the four seasons crops, when the sewage sludge was used in the 30 and 40 Mg ha-1 doses. However, reductions in plant height, weight and maize cob diameter, mass and grain yield were observed at the end of the last harvest. The treated sewage sludge is a viable alternative for maize fertilization in the first harvest, provides increases in grain yield in the order of 1.35 Mg ha-1 and can be recommended instead of NPK mineral fertilizers in built-up fertility soils.

scholarly journals Selection of Cowpea Lines for Multiple Traits by GYT Biplot Analysis

2020 ◽  
Vol 8 (2) ◽  
pp. 124
Author(s):  
Derivaldo Pureza da Cruz ◽  
Tâmara Rebecca Albuquerque de Oliveira ◽  
Andréa Barros Silva Gomes ◽  
Camila Queiroz da Silva Sanfim de Sant'Anna ◽  
Lília Marques Gravina ◽  
...  
Keyword(s):  
Grain Yield ◽  
Seed Weight ◽  
Block Design ◽  
Multiple Traits ◽  
R Software ◽  
Randomized Block Design ◽  
Productive Potential ◽  
Pod Length ◽  
100 Seed Weight ◽  
Selection Of

Cowpea is an African legume that was introduced to Brazil by Portuguese settlers in the mid-16th century. The productive potential of this crop may fluctuate depending on its environment. The objective of the present study was to select cowpea lines with high grain yield coupled with other traits of agronomic interest, such as good adaptability and stability, by the GYT biplot methodology. Twelve lines were evaluated in the years 2016 and 2017 in the municipality of Bom Jesus de Itabapoana, Brazil, in a randomized-block design with four replicates and two cultivars, which were used as controls. The following variables were evaluated: number of days to flowering, final stand, crop value, lodging, pod weight, pod length, seed number per pod, seed weight per pod, 100-seed weight (100SW), and grain yield. Analysis of variance was performed and GYT biplots were constructed using R software and the ggplot2 package. The GYT biplot graph analysis allowed for the selection of superior cowpea genotypes. In the combinations of traits observed, lines L1, L3, L5, L6, L8, and L9 were superior and cultivar Imponente stood out as one of the controls. The yield combinations GY*CV, GY*NDF, GY*LDG, GY*CV, GY*PW, GY*SNP and GY*P100G were positively correlated with each other but showed negative to highly negative correlations with GY*SWP and GY*TS.

scholarly journals Organic fertilization with turkey litter for maize cultivation in tropical region

2019 ◽  
pp. 2062-2066
Author(s):  
Diego Oliveira Ribeiro ◽  
Gustavo Castoldi ◽  
Manuel Rodriguez Carballal ◽  
Mariângela Brito Freiberger ◽  
Warlles Domingos Xavier ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Control Treatment ◽  
Partial Replacement ◽  
Mineral Fertilizers ◽  
Tropical Region ◽  
Organic Fertilization ◽  
Randomized Block Design ◽  
Maize Cultivation ◽  
Chemical Fertilization

Residues from agroindustry activity have been commonly used as a source of fertilizer for fertilization of annual crops. Sometimes these residues can replace the mineral fertilizers totally or partially, while their effects can be extended to the soil attributes. Thus, the objective of this study was to evaluate the effects of replacing conventional chemical fertilization with organic fertilization using turkey litter on maize grain yield and in the chemical attributes of an Oxisol in tropical region. The experiment was carried out in two crop seasons with various quantities of turkey litter, or in blend with chemical fertilizers, in a randomized block design with six treatments and five replicates. The treatments were as follows: T1 – Control treatment; T2 – Chemical fertilization with 450 kg ha-1 of 10-27-10 (NPK); T3 – Application of 3,800 kg ha-1 of turkey litter; T4 – Application of 7,600 kg ha-1 of turkey litter; T5 – Chemical fertilization with 450 kg ha-1 of 10-27-10 + 1900 kg ha-1 of turkey litter; T6 – Chemical fertilization with 450 kg ha-1 of 10-27-10 + 3,800 kg ha-1 of turkey litter. The organic fertilization with turkey litter presented potential for total or partial replacement of chemicals fertilization for maize cultivation with no loss in grain yield. Therefore, the treatments of T3 and T5 could be recommended to farmers at a lower cost. The treatment T4 increased the P and K contents in the soil, reaching to 24 mg dm-3 and 3.1 cmoc dm-3, respectively, after two crop seasons.

scholarly journals Biochemical changes and development of soybean with use of pelletized organomineral fertilizer containing sewage sludge and filter cake

2020 ◽  
Vol 42 ◽  
pp. e44249
Author(s):  
Leidyanne Godinho Silva ◽  
Reginaldo de Camargo ◽  
Regina Maria Quintão Lana ◽  
Julio Cesar Delvaux ◽  
Evandro Binotto Fagan ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Filter Cake ◽  
Block Design ◽  
Mineral Fertilizer ◽  
Waste Products ◽  
Plant Parts ◽  
Randomized Block Design ◽  
Four Levels ◽  
Quantitative Changes

Filter cake has been one of the most widely used waste products as a source of organic matter in the production of biofertilizers. However, sanitized sewage sludge is a recommended alternative for agricultural use because of environmental issues. Studies that examine the use of this particular class of fertilizer are needed. The objective of this work was to evaluate the efficiency of sewage sludge and filter cake as sources of organic matter in the composition of pelletized biofertilizers for soybean production. The experimental design was a randomized block design in a 2 x 4 + 2 factorial, which includes two sources of organic matter (sanitized sewage sludge and filter cake) and four levels of nitrogen (50, 75, 100, and 125%) relative to the recommended dose of phosphorus pentoxide compared with the mineral fertilizer. The use of organomineral fertilizer with the formulation of 75% sewage sludge showed greater growth for aerial plant parts. Biofertilizers formulated with sewage sludge and filter cake can replace mineral fertilizer and increase soybean growth. Quantitative changes in peroxidase, catalase and urease activity, as well as lipid peroxidation, were observed following the use of biofertilizers.

scholarly journals Contamination of soil and pineapple fruits under fertilization with sewage sludge

2018 ◽  
Vol 22 (5) ◽  
pp. 320-325 ◽  
Author(s):  
Mauro F. C. Mota ◽  
Rodinei F. Pegoraro ◽  
Silvânio R. dos Santos ◽  
Victor M. Maia ◽  
Regynaldo A. Sampaio ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Block Design ◽  
Mineral Fertilizers ◽  
Microbiological Contamination ◽  
Scientific Evaluation ◽  
Brazilian Legislation ◽  
Randomized Block Design ◽  
Zn Content ◽  
Biological Contaminants ◽  
Cu And Zn

ABSTRACT Sewage sludge is rich in organic matter and nutrients for the plants, and can be used in pineapple production, but there are few studies with scientific evaluation of possible inorganic and biological contaminants in pineapple plantations. In view of the above, this study aimed to evaluate the contamination of the soil and in fruits of pineapple fertilized with sewage sludge. The study was conducted in the municipality of Janaúba-MG. Treatments were arranged in a randomized block design, with four replicates, in a 2 x 5 factorial scheme, consisting of two different fertilizers: sewage sludge (SS) and mineral fertilizers (MF), and five pineapple varieties (Pérola, Vitória, Smooth Cayenne, MD-2, Fantastic IAC). Nitrogen was adopted as the base element to calculate the sewage sludge dose in the pineapple crop. Fertilization with sewage sludge increased the Zn and Cu contents in the soil and the Zn content in the leaves of the pineapple plants. Sewage sludge did not change the contents of As, Pb, Ba, Cu and Zn in the fruit, and Cr, Ni and Cd contents were not detected by the method used. Pineapple fruits did not show microbiological contamination above the limits established by the Brazilian legislation.

scholarly journals Productive potential and interaction of elite bean lines with environments in the Central Cerrado of Brazil

2012 ◽  
Vol 12 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Vilmar de Araújo Pontes Júnior ◽  
Leonardo Cunha Melo ◽  
Helton Santos Pereira ◽  
Maria José Del Peloso ◽  
Luís Cláudio de Faria ◽  
...  
Keyword(s):  
Grain Yield ◽  
Production Cost ◽  
Block Design ◽  
Visual Assessment ◽  
Yield Data ◽  
Randomized Block Design ◽  
Productive Potential ◽  
The Stability ◽  
Lower Production ◽  
New Cultivars

The search for more productive varieties of beans, with lower production cost and adaptable to most technological conditions has been intensified. The objective of this study was, therefore, to evaluate the stability and adaptability of common bean lines of the carioca group in the final evaluation network in the Central Cerrado of Brazil, in 2005 and 2006. Twelve lines and four cultivars were evaluated in 23 environments. A completely randomized block design was used with three replications, with plots of four rows of four meters. Grain yield data were subjected to analysis of variance, stability and of adaptability by the methodologies of Lin and Binns, Annichiarico and visual assessment, respectively. The most stable and promising lines for recommendation as new cultivars were CNFC 10429, CNFC 10431 and CNFC 10408.

scholarly journals Relationship between photosynthetic pigments and corn production under nitrogen sources

2020 ◽  
Vol 50 ◽  
Author(s):  
Ezequiel Zibetti Fornari ◽  
Lucas Gaviraghi ◽  
Claudir José Basso ◽  
Marcos Vinícius Marques Pinheiro ◽  
André Luis Vian ◽  
...  
Keyword(s):  
Grain Yield ◽  
Photosynthetic Pigments ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
Mineral Fertilizer ◽  
Nitrogen Sources ◽  
The Other ◽  
Plant Nitrogen ◽  
Chlorophyll Contents ◽  
Randomized Block Design

ABSTRACT Nitrogen (N) is a dynamic element in the soil, so new nitrogen fertilization alternatives are required as a way of maximizing its efficiency. Besides, vegetation sensors are a way to assess and manage the nutritional demands of plants. This study aimed to evaluate the effect of nitrogen sources on photosynthetic pigments and their correlation with corn grain yield and dry biomass. The experiment was carried out in a randomized block design with nitrogen sources (mineral, organic and biological). Contents of chlorophyll a, b and total, as well as carotenoids, were evaluated. The chlorophyll indices evaluated by both methods were positively correlated with each other and with the grain yield per plant. Nitrogen fertilization 100 % mineral was superior, when compared to the other treatments, with increments of up to 44 %. There was a positive relationship between the methods of determining and estimating the chlorophyll contents. The grain yield per plant showed the highest values when using the 100 % mineral fertilizer source, with increments above 10 %, in relation to the other sources, spending US$ 89.77 on fertilizer and earning over US$ 538.60 on grain yield. There was a positive correlation between the photosynthetic pigments obtained by both methods and grain yield per plant. Both methods are recommended for the evaluation of chlorophyll concentrations.

scholarly journals Application times, sources and doses of nitrogen on wheat cultivars under no till in the Cerrado region

2011 ◽  
Vol 41 (8) ◽  
pp. 1375-1382 ◽  
Author(s):  
Marcelo Carvalho Minhoto Teixeira Filho ◽  
Salatiér Buzetti ◽  
Marcelo Andreotti ◽  
Orivaldo Arf ◽  
Marco Eustáquio de Sá
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Wheat Yield ◽  
Nitrification Inhibitor ◽  
Nitrogen Sources ◽  
Wheat Cultivars ◽  
No Till ◽  
Randomized Block Design ◽  
Productive Potential ◽  
Leaf N Content

Proper management of nitrogen fertilization and using cultivars with high productive potential are essential to obtain high wheat yield. Thus, the objective of the present study was to assess the effects of different N doses and sources, one with a nitrification inhibitor, applied at sowing or as side dressing, on the production components and yield of two wheat cultivars irrigated, under no till, cultivated in a region of low altitude Cerrado (Selvíria - MS). A randomized block design was used in a 5x3x2x2 factorial arrangement, that is, five nitrogen doses (0, 50, 100, 150 and 200kg ha-1), three nitrogen sources (ammonium sulfonitrate with nitrification inhibitor (Entec®), ammonium sulfate and urea) and two nitrogen application times (at sowing or side dressing) on two wheat cultivars ('E 22' and 'E 42') with three replications. There was no difference for grain yield between the wheat cultivars and among the nitrogen sources. The application of nitrogen totally at sowing is feasible as well as the traditional application at sowing and side dressing. The nitrogen doses increased the leaf N content of the 'E 22' cultivar, resulting in a reduction in the hectolitric mass of the 'E 42' cultivar and increased grain yield of the 'E 22' and 'E 42' wheat yield cultivars, respectively, up to doses of 126 and 122kg ha-1 N, regardless of the application time and the nitrogen source.

scholarly journals Use of stabilization pond sludge in cultivation of roses

2014 ◽  
Vol 18 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Jorge L. da Paixão Filho ◽  
Giuliano Gabrielli ◽  
Bruno Coraucci Filho ◽  
Adriano L. Tonetti
Keyword(s):  
Sewage Sludge ◽  
Block Design ◽  
Nitrogen Concentration ◽  
Mineral Fertilizer ◽  
Dry Mass ◽  
Control Treatment ◽  
Total Biomass ◽  
Stabilization Pond ◽  
Randomized Block Design ◽  
The Rose

One option for the increasing production of sewage sludge (SS) is its agricultural use in crops with high nutritional demand, such as the rose. Therefore, the aim of this work was to study the application of SS from primary stabilization pond in roses of the variety 'Carola'. For the experiment, the roses were planted in 20 L recipients using increasing doses of sludge (T2 - 12 Mg ha-1, T3 - 24 Mg ha-1 and T4 - 36 Mg ha-1), mineral fertilizer (T5) and control treatment (T1, without N) in a randomized block design. The evaluated parameters were: roots dry mass, aerial dry mass, total biomass, leaflets area and nitrogen concentration in the leaf. The SS application resulted in better development of the rose, increasing the roots and the aerial biomasses, the leaflets area, and nitrogen content in the leaves compared to the control (T1). There was no statistical difference between the use of mineral fertilizer (T5), and the SS under the highest dose (T4). With these benefits, the use in agriculture of sewage sludge derived from stabilization ponds proved to be an adequate option for its disposal.

scholarly journals Applying Sewage Sludge toEucalyptus grandisPlantations: Effects on Biomass Production and Nutrient Cycling through Litterfall

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Paulo Henrique Müller da Silva ◽  
Fabio Poggiani ◽  
Jean Paul Laclau
Keyword(s):  
Sewage Sludge ◽  
Nutrient Cycling ◽  
Biomass Production ◽  
Block Design ◽  
Mineral Fertilizer ◽  
Tropical Soils ◽  
Control Treatment ◽  
Mineral Fertilizers ◽  
Litter Production ◽  
Mineral Fertilization

In most Brazilian cities sewage sludge is dumped into sanitary landfills, even though its use in forest plantations as a fertilizer and soil conditioner might be an interesting option. Sewage sludge applications might reduce the amounts of mineral fertilizers needed to sustain the productivity on infertile tropical soils. However, sewage sludge must be applied with care to crops to avoid soil and water pollution. The aim of our study was to assess the effects of dry and wet sewage sludges on the growth and nutrient cycling ofEucalyptus grandisplantations established on the most common soil type for Brazilian eucalypt plantations. Biomass production and nutrient cycling were studied over a 36-month period in a complete randomized block design. Four experimental treatments were compared: wet sewage sludge, dry sludge, mineral fertilizer, and no fertilizer applications. The two types of sludges as well as mineral fertilizer increased significantly the biomass ofEucalyptustrees. Wood biomass productions 36 months after planting were similar in the sewage sludge and mineral fertilization treatments (about 80 tons ha−1) and 86% higher than in the control treatment. Sewage sludge application also affected positively leaf litter production and significantly increased nutrient transfer among the components of the ecosystem.

scholarly journals Effect Bio-fertilizer of Bacillus, Azotobacter and Pseudomonas floresence in the Growth and Production of Corn Plant (Zea mays L.)

2019 ◽  
Vol 32 ◽  
pp. 7-14
Author(s):  
Mohammed S. Haran ◽  
Abdal Zahra T. Thaher
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Dry Weight ◽  
Phosphate Fertilizer ◽  
Randomized Block Design ◽  
Salt Level ◽  
Leaf Surface Area ◽  
Four Levels ◽  
Phosphorus And Potassium

A field experiment was carried out with the use of complete randomized block design (CRBD) to study the effect of five bacterial inoculations (non- inoculation, inoculation with phosphate soluble bacteria, inoculation with Azotobacter bacteria, inoculation with Pseudomonas fluorescens and Bacterial mixture). Two levels of salinity of irrigation water 3 and 6 dS.m-1 and four levels of phosphate fertilizer (0, 40, 80 and 120 kgP.ha-1). The results showed that the mixed inoculation of phosphate soluble bacteria, Azotobacter and P. fluorescens bacteria were superior to the rest of the single bacterial inoculation in plant height, dry weight of the shoot part, total grain yield, weight of 100 grains, grain weight in cop, leaf surface area, nitrogen, phosphorus and potassium concentrations in the vegetative growth and grain with 33.08%, 31.90%, 61.07%, 44.99%, 62.06%, 36.94%, 12.8%, 31.5%, 156.5%, 272.3%, 39.5% and 75.1%, respectively, in comparison with the non- inoculation and irrigated water treatment of 6 dS.m-1 (T0S2P0), while the inoculation of phosphorus soluble bacteria did not differ significantly from the P.fluorescence inoculation in most of these traits. T3S2P3 was not significantly differ from T4S2P3 combined in the increase of plant height and total grain yield compared to the non- inoculation and non-phosphorous treated at the salt level 3and6 dS.m-1. The single-dose T2S2P3 did not differ significantly from the combined T4S2P3 3 and 6 dS.m-1.

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