Sodicidade E Salinidade De Solo Submetido À Fertirrigação Com Esgoto Bruto Aplicado Em Sulcos Fechados

Marques, Marcus Vinícius Araújo; Matos, Antônio Teixeira de; Silva, Diogo André Pinheiro da; Silvério, Thiago Henrique Ribeiro

doi:10.13083/reveng.v26i5.890

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…The application of fertilizers with irrigation water characterizes fertirrigation technique, which optimize use of inputs in different irrigated crops, either in aspects related to productivity or quality products, being more notable its adoption in crops irrigated by localized irrigation methods (Marques et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Carrot Cultivation Fertirrigated With Nitrogen by Surface and Subsurface Drip / Cultivo De Cenoura Fertirrigada Com Nitrogênio Por Gotejamento De Superfície E Subsuperfície

Zomerfeld

Pegorari

Queiroz

et al. 2021

BJD

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The search for maximizing crop productivity involves new technological procedures, in which fertirrigation makes great potential, due to the importance of defining the best way of applying water and nutrients (in this case nitrogen) to crops express their maximum productive potential. The objective of this work was to evaluate irrigated carrot culture by surface and subsurface drip irrigation with different nitrogen doses applied in fertirrigation. The experimental design was randomized blocks in factorial scheme 2 x 6 (type of grip irrigation x Nitrogen doses), with four replicates. The types of drip irrigation used were surface and subsurface and Nitrogen doses were zero, 30, 60, 90, 120 and 150 kg ha -1 . Fertirrigations were divided into three applications at 30, 50 and 70 days after emergence. The carrot harvest was performed at 90 days of cultivation, when root, shoot and total length were evaluated, as well as root and upper root diameters and estimated yield. It was observed that carrot cultivation is influenced by irrigation system used and by Nitrogen rates, being the highest productivity when plants were submitted to 90.4 kg ha -1 of Nitrogen by subsurface drip irrigation.

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Section: Introductionmentioning

confidence: 99%

Carrot Cultivation Fertirrigated With Nitrogen by Surface and Subsurface Drip / Cultivo De Cenoura Fertirrigada Com Nitrogênio Por Gotejamento De Superfície E Subsuperfície

Zomerfeld

Pegorari

Queiroz

et al. 2021

BJD

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Impact of Reglone® Herbicide Application on Soil Microbial Activity: An Assessment in the Context of Brazilian Family Farming

Santos,

Rodrigues

2024

Preprint

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Family farming practices are subject to modification as new technologies become available. The act of weeding to remove weeds can require a significant investment of time from the farmer and thus has been supplanted by the use of herbicides. Such practices can cause health issues for the farmer and disrupt the soil's biological community, which could ultimately lead to a reduction in soil fertility over time. The present study aimed to evaluate the consequences of applying different concentrations of the herbicide Reglone® on soil microbial activity. Experiments were conducted with soil samples containing varying concentrations of Reglone®. The soil moisture was adjusted to 60% of its water holding capacity, and the microcosms were incubated for 28 days at 25°C. The results demonstrated that the concentration of 1.3 mg/kg, which is the Predicted Environmental Concentration of the active ingredient (diquat), did not impact soil microbial respiration in comparison to the control. However, concentrations two and three times higher resulted in a significant reduction in microbial activity, which may negatively impact the nutrient cycling and the agricultural efficiency of soils exposed to these herbicide concentrations, which are widely used for controlling weeds. It can be concluded that the application of the herbicide Reglone® exerts influence on soil microbial activity at dosages above the predicted concentration, which were 2.6 mg/kg and 3.9 mg/kg of the active ingredient. A decline in soil quality and agricultural productivity can have adverse consequences for farmers, potentially leading to reduced income and an exodus from rural areas.

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Technical Note 3 - Agriculture use: Conditions of applicability of effluent from sewage treatment plants

Marques

Chamhum-Silva

Matos

et al. 2022

Cad. Téc. Eng. Sanit. Ambiente.

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The effluent from sewage treatment plants (STPs) used in fertigation is a source of nutrients for plants, reducing mineral fertilizers applied to agricultural crops, and partially supplying the water demanded by the plants. The use of this effluent in agroforestry is also favoured because of its availability all year long, especially in cities with sewage treatment systems. Some criteria, hould be considered when using effluent from STP in crops, such as: type of plant that will be used, method of application, physicochemical and biological characteristics of the effluent, as well as the doses to be applied. Such criteria are covered in this technical note. The potential use of the effluent in the agroforestry segment is illustrated by some experiments using different treatment levels. In these experiments, the effects on the productivity of the essential oil extracted from coriander seeds and on the productivity of forage (elephant grass), by using different methods of fertigation, were evaluated.

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Sodicidade E Salinidade De Solo Submetido À Fertirrigação Com Esgoto Bruto Aplicado Em Sulcos Fechados

Cited by 3 publications

References 10 publications

Carrot Cultivation Fertirrigated With Nitrogen by Surface and Subsurface Drip / Cultivo De Cenoura Fertirrigada Com Nitrogênio Por Gotejamento De Superfície E Subsuperfície

Carrot Cultivation Fertirrigated With Nitrogen by Surface and Subsurface Drip / Cultivo De Cenoura Fertirrigada Com Nitrogênio Por Gotejamento De Superfície E Subsuperfície

Impact of Reglone® Herbicide Application on Soil Microbial Activity: An Assessment in the Context of Brazilian Family Farming

Technical Note 3 - Agriculture use: Conditions of applicability of effluent from sewage treatment plants

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