Carrot Yield and Recovery Efficiency of Nitrogen, Phosphorus and Potassium

Assunção, Natália Silva; Clemente, Júnia Maria; Aquino, Leonardo Ângelo de; Dezordi, Luciel Rauni; Santos, Lauana Lopes dos

doi:10.1590/1983-21252016v29n410rc

Cited by 13 publications

(9 citation statements)

References 18 publications

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“…Reductions in nucleic acid and protein synthesis may also occur, with accumulations of soluble nitrogen compounds in the tissue. Reductions in plant height, number of leaves, development of the root system, production of dry matter and delay in maturation (Assunção et al 2016). The plant dry matter (PDM) of the carrot cultivars showed an increasing behavior, as a function of the increment of P doses in the soil.…”

Section: Resultsmentioning

confidence: 98%

Yield and phosphorus use efficiency of carrot cultivars

Jesus

Grangeiro

Sousa³

et al. 2021

Biosci. J.

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Phosphate fertilization is indispensable for carrot cultivation, as it contributes to plant development, formation of marketable roots and higher yields. In this context, the objective of this study was to evaluate the production and nutritional efficiency of carrot cultivars under phosphate fertilization. The experiments were carried out from July to November 2016 and from June to October 2017, at the Rafael Fernandes experimental farm, District of Alagoinha, Mossoró, RN, Brazil. The experimental design was in randomized blocks, in a 4×4 factorial scheme with 4 replicates. The treatments consisted of the combination of carrot cultivars (Brasília, Planalto, Suprema and Nativa) with phosphorus (P) doses (0, 90, 180 and 270 kg ha-1 P2O5). The characteristics analyzed were: P content in the diagnostic leaf, plant dry matter, plant height, marketable and total yields, and the classification of cultivars for efficiency and response to phosphate fertilization. The increments promoted by phosphate fertilization were 64% in plant height, 444% in dry matter and 284% in marketable yield. The maximum marketable yield was obtained with doses from 186.8 to 243.5 kg ha-1, depending on the cultivar. The Native cultivar was classified as more efficient in the use of P.

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Section: Resultsmentioning

confidence: 98%

Yield and phosphorus use efficiency of carrot cultivars

Jesus

Grangeiro

Sousa³

et al. 2021

Biosci. J.

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“…According to Aquino et al (2015), the average nutrient content in winter carrot cultivars could be around 1.36, 0.43, 4.69, 0.078, and 0.109 dag•kg −1 for N, P, K, Ca, and Mg, respectively. Assunção et al (2016) obtained, on average N, P, and K levels of 1.15, 0.37, and 4.61 dag•kg −1 , respectively, for the summer carrot cultivar and 1.5, 0.5, and 6.66 dag•kg −1 , respectively, in winter. It is noted that, from among the values presented, the K contents in the summer and winter cultivars were higher than that obtained in the present study.…”

Section: Doses Of N (%)mentioning

confidence: 87%

Potential use of treated wastewater from a cattle operation in the fertigation of organic carrots

Jorge

Silva

Hüther

et al. 2022

Rev. Bras. Ciênc. Ambient.

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The use of treated effluents rich in nutrients and organic matter has intensified in agricultural crops, contributing to the demand for water and fertilizers. The goal of this work was to assess the effects of fertigation with treated dairy cattle wastewater, for the cultivation of carrot (Daucus carota) when applied in four different doses, under field conditions, on nutrient accumulation, productivity, and health quality in the carrot (D. carota). Wastewater from treated cattle (WTC) was treated in a pilot treatment unit (PTU). Cultivation was carried out in two beds, and the WTC applied by drippers. Nitrogen (N) was considered the base element for the dose calculation, and a 100% N dose was equivalent to 150 kg ha−1. WTC doses of 0, 100, 200, and 300% N were evaluated. Productivity was evaluated at 70 and 120 days after sowing, in the aerial part (fresh and dry mass and accumulation of nutrients), in the main roots (fresh and dry mass, accumulation of nutrients, diameter, length, and sanitary quality), and as the total productivity of the two organs. As a result, an increase in productivity was observed for all treatments with WTC and accumulation of Ca and Mg. The roots did not present contamination; therefore, the carrots were fit for human consumption. It was concluded that the application of WTC in organic cultivation of carrots is a viable alternative means of plant fertilization, providing higher root productivity than the national average, reaching 72.6 t ha−1 for a dose of 100% N, without compromising on sanitary quality and is suitable for human and animal consumption.

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“…Quando os índices de rendimentos de uma produção de qualquer cultura que seja são baixos, isso está diretamente relacionado com problemas que podem ser provenientes de uma fertilização inadequada, seja porque a fertilização foi insuficiente ou porque estava com excesso de nutrientes, e pode também estar atrelado a algumas práticas de produção que podem acabar afetando a qualidade dos produtos agrícolas, e alterar a microfauna do solo ou aumentar as doenças que são comumente transmitidas pelo solo (Assunção et al, 2016).…”

Section: Exigências Nutricionaisunclassified