Density of soil and nitrogen in production and nutrition of safflower (Carthamus tinctorius L.)

Ferreira, Pamela Palhano; Bonfim-Silva, Edna Maria; Silva, Tonny José Araújo da; Pacheco, Adriano Bicioni; Sousa, Helon Hébano de Freitas; Duarte, Thiago Franco

doi:10.21475/ajcs.17.11.05.p436

Cited by 3 publications

(4 citation statements)

References 13 publications

(19 reference statements)

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“…The bulk density negatively affects the phytometric components of the safflower crop. The mass of the safflower heads declined up to 53% compared with the densities of 1.0 Mg•m −3 and 1.8 Mg•m −3 , irrespective of the nitrogen dose applied [4].…”

Section: Dry Head Massmentioning

confidence: 88%

“…Soil compaction can hinder the water and nutrient uptake in plants, thus inhibiting their development [2] [3] [4], besides undermining the root system aeration and obstructing the suiting development. Intensification of bulk density can curtail the macro-porosity, lower the infiltration rate and minimize the morphological changes in the roots of the cultivated plants [3] [5].…”

Section: Introductionmentioning

confidence: 99%

“…These rings were attached using adhesive tape, and one end was covered with a 1 mm thick polyethylene sheet to prevent soil loss. Once the soil was filled, the experimental units were conditioned using a 300 mm plastic dish [4].…”

Section: Introductionmentioning

confidence: 99%

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Reproductive Components of Safflower Genotypes Submitted of Bulk Density Levels in the Brazilian Cerrado

Paludo¹,

Bonfim-Silva²,

Silva³

et al. 2017

AJPS

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Nutrient absorption in crops can decline and their development can be hindered by increased bulk density. This study aimed at assessing the manner in which bulk density levels affect the reproductive structures of the safflower genotypes in the Brazilian Cerrado. The completely randomized design was adopted with four replications for the experiment, which was conducted in a greenhouse using Oxisol collected from 0.0 to 0.2 m depth from the region supporting Cerrado vegetation. The treatments included ten safflower genotypes (PI 237538, PI 248385, PI 250196, PI 301049, PI 305173, PI 305205, PI 306520, PI 306603, PI 560202 and PI 613366) and five bulk density levels (1.0, 1.2, 1.4, 1.6 and 1.8 Mg•m −3). Evaluations were done at 90 days after emergence, in terms of the number, diameter and dry mass of the heads. The data were submitted to the analysis of variance. The means were grouped using the Scott-Knott test at 5% probability. The diameter and dry mass of the chapters were influenced by the mean bulk density of 1.10 Mg•m −3. A notable interaction was evident between the safflower genotypes and bulk density levels for the diameter and dry mass of the head alone, revealing the high degree of genetic variability that environmental changes induce among the genotypes. The PI 250196, PI 301049, PI 305173 and PI 305205 genotypes exhibited greater stability to the bulk density variations compared with the others. Mean bulk density of 1.2 Mg•m −3 was found to impair the development of the reproductive components of the safflower genotypes.

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Section: Dry Head Massmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Reproductive Components of Safflower Genotypes Submitted of Bulk Density Levels in the Brazilian Cerrado

Paludo¹,

Bonfim-Silva²,

Silva³

et al. 2017

AJPS

Self Cite

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“…Due to its importance in the synthesis of various biological compounds, such as amino acids, proteins and nucleic acids, nitrogen is essential for the development of plant cells and tissues (FERREIRA et al, 2017;TAIZ et al, 2017). This was proven in this study, because the absolute control (without fertilization and without inoculation) had the lowest number of branches in all evaluations.…”

mentioning

confidence: 99%

EFFECT OF SOIL COMPACTION AND CO-INOCULATION WITH Azospirillum brasilense ON THE DEVELOPMENT OF PEANUT PLANTS

et al. 2020

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The aim of this study was to evaluate the effect of inoculation with rhizobium and co -inoculation with Azospirillum brasilense on phytometric characteristics of peanut plants grown in Latossolo Vermelho (Oxisol) with and without compaction. The experiment was conducted in a greenhouse, with a randomized block design in a 5x2 factorial scheme and 4 replicates, totaling 40 experimental units. Treatments were composed by commercial inoculant for peanuts (SEMIA 6144 strain); MT 15 strain; combination of MT 15 + A. brasilense; nitrogen control and absolute control. Plant height, number of leaves, number of branches per plant, stem diameter and Falker chlorophyll index were evaluated. The data were subjected to analysis of variance and, when significant, to Tukey test at 1% probability level. For the variables plant height, number of leaves, number of branches and stem diameter, the results were similar for all treatments, except for the absolute control and number of branches at 90 days after emergence (DAE) and stem diameter at 30 and 90 DAE. For stem diameter at 30 DAE, the results were similar to those found in the treatments with co -inoculation, commercial inoculant and nitrogen fertilization. There was interaction for Falker chlorophyll index at 60 DAE, with the best result found in the MT 15 strain. Inoculation with MT15 and co-inoculation with A. brasilense promoted good performance in peanut crop in terms of phytometric characteristics in soil with and without compaction.

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Wood ash as a vegetative-growth promoter in soils with subsurface compaction

Bonfim-Silva

Martinez-Santos

Silva

et al. 2022

Rev. bras. eng. agríc. ambient.

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Subsurface soil compaction and nutritional stress are among the main factors that limit the yield of crops. Using forest residues, such as wood ash, is a viable option in the chemical recovery of soils and can promote vigorous root development in soils with subsurface compaction. The objective of this study was to indicate the most adequate dose of wood ash for efficient management of this residue applied in rotational crops cultivated in soils with subsurface compaction. Safflower plants (Carthamus tinctorius), a rotational crop with a deep taproot system, were grown in clay soil fertilized with different doses of ash and with induced levels of compaction in the subsurface layer. The experiment was conducted in a randomized block design, under a 4 × 5 factorial scheme, composed of four doses of wood ash (8.0, 16.0, 24.0, and 32.0 g dm-3) and five levels of soil bulk density (1.0, 1.2, 1.4, 1.6, and 1.8 kg dm-3), with four replicates. Crop growth variables (plant height, number of leaves, stem diameter, and SPAD chlorophyll index) were evaluated at 15, 45, and 75 days after emergence. The results indicated that soil compaction was the most limiting factor to the vegetative development of safflower, regardless of the ash dose. The interaction between the wood ash dose and bulk density, when present, showed that the best growth response occurred for ash dose of 25 g dm-3 for a soil bulk density of 1.2 kg dm-3.

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Density of soil and nitrogen in production and nutrition of safflower (Carthamus tinctorius L.)

Cited by 3 publications

References 13 publications

Reproductive Components of Safflower Genotypes Submitted of Bulk Density Levels in the Brazilian Cerrado

Reproductive Components of Safflower Genotypes Submitted of Bulk Density Levels in the Brazilian Cerrado

EFFECT OF SOIL COMPACTION AND CO-INOCULATION WITH Azospirillum brasilense ON THE DEVELOPMENT OF PEANUT PLANTS

Wood ash as a vegetative-growth promoter in soils with subsurface compaction

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