Growth Rates and Sunflower Production in Function of Fertilization with Biochar and NPK

Furtado, G.F.; Chaves, Lúcia Helena Garófalo

doi:10.5539/jas.v10n2p260

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…When applied to the soil as a conditioner and/or fertilizer, the poultry litter biochar increased the cation exchange capacity of a Yellow Red Latosol (Andrade et al, 2015), released phosphorus into the Ultisol, Oxisol and Entisol (Mendes et al, 2015a), improved the chemical properties of Ultisol, Oxisol and Entisol, increased soil pH reflecting the fact that the liming potential increased with increasing application rates of biochar (Mendes et al, 2015b), increased the adsorption of Zn in Ultisol and Entisol in the samples with pH 4 (Lima et al, 2017), improved the physical properties of Ultisol (Chaves et al, 2018) and promoted an increase in sunflower growth rates in the evaluation periods (Furtado & Chaves, 2018). However, there is little information about vertical and descending movement of the chemical elements by the profile of bio-carbon applied to agricultural soils.…”

Section: Introductionmentioning

confidence: 99%

Soil Chemical Amendments and the Macronutrients Mobility Evaluation in Oxisol Treated With Biochar

Fernandes¹,

Chaves²,

Mendes³

et al. 2018

JAS

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Biochar is material produced during a process called pyrolysis. This material can be used as fertilizer to increase the agronomic productivity of low fertility soils. The objective of this study was to evaluate the soil chemical amendments and the macronutrients leaching following biochar application, produced from poultry litter, in Yellow Red Latosol in laboratory experiments. Soil columns (height 20 cm) containing 0; 10; 15; 20; 25 and 30 t ha-1 of biochar with four replications totaled 24 experimental units. For 30 days, water was applied daily to each column, and the leachates were collected and chemically characterized. After this period, soil samples were taken from the 0-10 and 10-20 cm layer depth and chemically characterized. Biochar reduced exchangeable acidity values. Biochar improved soil fertility. Leachates contained increasing EC, K, Na, Ca and Mg, however the concentration of these elements were small in relation to the biochar doses.

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Section: Introductionmentioning

confidence: 99%

Soil Chemical Amendments and the Macronutrients Mobility Evaluation in Oxisol Treated With Biochar

Fernandes¹,

Chaves²,

Mendes³

et al. 2018

JAS

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“…The results suggest a nutritional excess caused by the use of wastewater in addition to the high doses of nitrogen and phosphorus. Furtado and Chaves (2018) observed that the application of NPK from 60% of the recommended dose caused the reduction of the absolute growth rate of stem diameter. Oliveira et al (2014), also observed that high doses of nitrogen promoted a reduction in the yield of eggplant crop by potentiating the harmful effects of water salinity and, therefore, decreased the agronomic efficiency of nitrogen fertilization.…”

Section: Resultsmentioning

confidence: 99%

Growth Rate of Eggplant Under Nitrogen and Phosphate Fertilization and Irrigated With Wastewater

Júnior¹,

Medeiros²,

Santos³

et al. 2019

JAS

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Wastewater use has become an alternative for agriculture in arid and semi-arid areas due to water scarcity besides providing nutrient for plants. This work aimed to evaluate the effects of the interaction of nitrogen and phosphorus doses associated with wastewater on the growth rate of eggplants in the stages of vegetative growth and beginning of fruiting in the semi-arid of Brazil. The wastewater was previously treated using sand filter with intermittent flow. The experiment consisted of a randomized block design in a 4 × 4 + 1 factorial scheme, with four replications. The factors consisted of four nitrogen doses (N1 = 0.22, N2 = 0.39, N3 = 0.56 and N4 = 0.72 g dm-3 of soil), four doses of phosphorus (P1 = 0, P2 = 1.68, P3 = 2.40 and P4 = 3.12 g dm-3 of soil), both using wastewater, and a control treatment (100% nitrogen and phosphorus using drinking water). The interaction of wastewater with nitrogen and phosphorus doses influenced all growth rates at the vegetative stage, except for the relative number of leaves. We found interaction for the relative rates of stem diameter and number and area of leaves at the beginning of the fruiting stage. Nitrogen and phosphorus doses associated with wastewater were excessive even below the recommendation for eggplant cultivation, however, in the absence of wastewater the plants reduce the growth rates of stem diameter and leaf area in the initial period of the fruiting.

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“…As stated by these researchers, biochar rates below 30 t ha -1 provided the best results. Furtado and Chaves (2018) used poultry litter biochar in the sunflower crop and observed marked increases in the growth rates and yield of this crop. After comparing the effect of poultry litter and biochar from this biomass on the improvement of soil acidity and the growth of maize, Masud et al (2020) concluded that biochar was more efficient in correcting soil acidity, which provided greater nutrient absorption by maize plants.…”

Section: Introductionmentioning

confidence: 99%

Development and production of maize as a function of biochar rates

Mendes¹,

Chaves²,

Fernandes³

et al. 2021

Semina: Ciênc. Agrár.

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Poultry litter biochar has shown to be promising in crop development and production. On this basis, this study was developed to investigate the influence of increasing rates of poultry litter biochar on the growth and production of maize hybrid BRS 2022. The experiment was laid out in a completely randomized design with six biochar rates (0, 2.0, 4.0, 6.1, 8.1 and 10.1 t ha-1) and four replicates. Plots consisted of pots with a volume of 20 dm3, with one plant each. The following variables were evaluated at 83 days after sowing: plant height; first-ear insertion height; stem diameter; number of leaves; leaf area; internode length and number; stem, leaf and total dry weights; ear weight; grain weight per plant; 1000-grain weight; and ear length and diameter. Biochar application influenced plant height; first-ear insertion height; stem diameter; leaf area; internode length; and stem, leaf and total dry weights, having a positive impact in increasing in ear weight, grain weight per plant, 1000-grain weight and ear length and diameter. For the conditions in which the experiment was conducted, the recommended biochar rate to obtain the best results is 6.4 t ha-1.

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Growth Rates and Sunflower Production in Function of Fertilization with Biochar and NPK

Cited by 5 publications

References 21 publications

Soil Chemical Amendments and the Macronutrients Mobility Evaluation in Oxisol Treated With Biochar

Soil Chemical Amendments and the Macronutrients Mobility Evaluation in Oxisol Treated With Biochar

Growth Rate of Eggplant Under Nitrogen and Phosphate Fertilization and Irrigated With Wastewater

Development and production of maize as a function of biochar rates

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