SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Sousa,Carlos H. C. de; Lacerda,Claudivan F. de; Silva,Francisco L. B. da; Neves,Antonia L. R.; Costa,Raimundo N. T.; Gheyi,Hans R..

The objective of this study was to evaluate the use of subsoiling, gypsum and organic matter associated with the cultivation of cotton, sunflower and cowpea in crop rotation, seeking the reclamation and use of a saline-sodic soil. The treatments were arranged in a randomized block design in split plots with four replications, during two crop cycles (2009/2010 and 2010/2011). The plots were formed by the treatments: T1. Subsoiling (S); T2. S + 20 Mg ha-1 of gypsum; T3. S + 40 Mg ha-1 of organic matter; T4. S + 10 Mg ha-1 of gypsum + 20 Mg ha-1 of organic matter; T5. S + 20 Mg ha-1 of gypsum + 40 Mg ha-1 of organic matter and the sub-plots consisted of the cotton-cowpea (C/CP) and sunflower-cowpea (S/CP) crop rotation. The use of gypsum and organic matter...

Concentration of injetion solution and its effects on soil and on yield of fertirrigated banana cv. Terra Maranhão

Palavras-chave: Salinity; Sodicity; Gossypium hirsutum; Helianthus annuus; Vigna unguiculata.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500006

Coelho,Eugênio F.; Andrade Neto,Torquato M. de; Barros,Damiana L..

The Fertigation is the combined application of water and nutrients to a crop. It can be adapted to all types of agricultural crops. The objective of this study was to evaluate the effect of urea concentration in irrigation water on electrical conductivity of the soil solution and saturation extract along the first cycle of banana cv. Terra Maranhão. The experiment followed a completely randomized design with six treatments and ten replications. Treatments regarded for using three urea concentrations (1.0; 2.5 and 4.0 g L-1) in irrigation water applied by two micro irrigation systems (microsprinkler and drip). Results showed that there was a linear elevation of electrical conductivity of saturation extract and soil solution with the increase on...

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Urea; Salinity; Fertirrigation.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600007

CONSUMPTION, EFFICIENCY AND WATER CONTENT OF ARUGULA UNDER DIFFERENT MANAGEMENT OF BRACKISH NUTRITIONAL SOLUTIONS

Campos Júnior,José E.; Santos Júnior,José A.; Silva,Ênio F. de F. e; Martins,Juliana B.; Rolim,Mário M..

ABSTRACT The need to use strategies for using brackish water in agriculture, especially in semi-arid conditions, is evident. Based on this information, this study was developed with the aim of evaluating the consumption, efficiency and water content, as well as the dry mass of the arugula plants (cv. Broad Leaf) exposed to brackish nutrient solutions as a function of replacement strategies and circulation frequencies. The treatments consisted of six salinity levels of the nutrient solution (1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 dS m-1) and two circulation frequencies (twice a day 8 a.m. and 4 p.m., and three times a day at 8 a.m., 12 p.m. and 5 p.m.). In Experiment I, the evapotranspiration line was replaced with the respective brackish water used in the...

HYDROPONIC CULTIVATION OF CORIANDER USING FRESH AND BRACKISH WATERS WITH DIFFERENT TEMPERATURES OF THE NUTRIENT SOLUTION

Palavras-chave: Eruca sativa; Cultivation without soil; Salinity.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000600885

Silva,Mairton G. da; Soares,Tales M.; Gheyi,Hans R.; Oliveira,Mateus G. B. de; Santos,Caroline C. dos.

ABSTRACT A large number of studies on salinity in hydroponic systems have been carried out, but few of them have evaluated the interaction between salinity and nutrient solution temperatures. Two experiments were carried out in a randomized block design from January to February (Experiment I) and June to July 2018 (Experiment II). Experiment I consisted of treatments with five combinations, as follows: unheated (control) and heated nutrient solution (NS) at a temperature of 32°C using fresh water with an electrical conductivity (ECw) of 0.3 dS m−1, and unheated and heated NS at temperatures of 30 and 32°C using brackish water with an ECw of 6.5 dS m−1 in the main plots, with two coriander cultivars (Tabocas and Verdão) in the subplots, which were grown in...

Watermelon fertigation with electrical conductivity and ph monitoring in the soil solution

Palavras-chave: Coriandrum sativum L. abiotic stress shoot fresh matter hydroponics; Salinity.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600674

DA SILVA JÚNIOR,MANOEL J.; VIANA,PAULA C.; MEDEIROS,JOSÉ F. DE; LIMA,JOÃO G. A.; TARGINO,ANA J. DE O..

ABSTRACT In the olericulture, in general, is practiced intensive fertilization, which creates a risk of salinization and change of high pH, which if not well monitored can cause production losses, excessive spending on fertilizers and environmental contamination. We developed this study with the aim of controlling fertigation on watermelon through the behavior of the electrical conductivity (EC) and pH in the soil solution obtained through porous ceramic cups extractors. The EC and pH values were corrected by the current soil moisture for the moisture field capacity, due to different moisture values at the time of extraction. The monitoring comprised 19 assessments during 80 days of cultivation. We can control the pH and EC of the soil and maintain...

Efficiency of water use in sunflower grown in hydroponic system under saline stress

Palavras-chave: Citrullus lanatus; Fertilization; Solution extractors; Salinity.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000400622

Santos Júnior,José Amilton; Gheyi,Hans R.; G. Filho,Doroteu H.; Soares,Frederico A. L.; Dias,Nildo da S..

In order to identify alternatives for the use of saline water in agricultural production, the effects of the use of brackish water in the preparation of the nutrient solution for the cultivation of sunflower (cv. EMBRAPA 122-V2000) were studied in hydroponic system on consumption and efficiency of water use for the production of achenes and biomass. A completely randomized design was used, analyzed in a 5x2 factorial scheme with three replications. The factors studied were five levels of salinity of nutrient solution (1.7 - control; 4.3; 6.0; 9.0; and 11.5dS m-1) and two plant densities - one or two plants per vessel. It was concluded that the water consumption of sunflower is a variable sensitive to the salinity of the nutrient solution, especially after...

INGESTIVE BEHAVIOR OF SANTA INÊS SHEEP UNDER THERMONEUTRALITY AND THERMAL STRESS UPON CONSUMPTION OF SALINE WATER

Palavras-chave: Salinity; Plant density; Soilless culture; Helianthus annuus L..

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000400011

Furtado,Dermeval A.; Carvalho Júnior,Sebastião B. de; Souza,Bonifácio B. de; Dantas,Nayanne L. B.; Rodrigues,Ladyanne R..

ABSTRACT The consumption of saline water in semiarid regions is a recurrent situation that can affect the ingestive behavior of small ruminants. This study evaluated the ingestive behavior of Santa Inês sheep maintained in a climatic chamber under two air temperatures -25 °C within the thermal comfort zone (TCZ) and 32 °C above the TCZ - and consuming water with three levels of salinity - 2.0, 4.0, and 8.0 dS m-1. The experimental design was completely randomized in 2 × 3 factorial schemes, comprising two air temperatures and drinking water with three levels of salinity, in six replicates (animals). Regardless of air temperature, the consumption of saline water did not affect feed and water intake by the sheep; however, there was a decrease in feed intake...

ADDITION OF BOILER CHARCOAL WASTE TO COMPOST FOR USE AS SUBSTRATE FOR VEGETABLE SEEDLINGS

Palavras-chave: Climatic chamber; Feed intake; Idleness; Ovis aries; Salinity; Water intake.

Ano: 2021

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000100019

Lorin,Higor E. F.; Costa,Mônica S. S. de M.; Chiarelotto,Maico; Santos,Francielly T. dos; Costa,Luiz A. de M..

ABSTRACT The recovery of waste from the broiler production chain (BPC) is consistent with the principles of a circular economy. Besides turning waste into organic compost, its use as substrate for the production of vegetable seedlings further increases its economic value. However, it is necessary to adapt its characteristics to enable its use as substrate. To this end, the addition of boiler remnant charcoal wastes (BCW), another type of waste generated in the BPC, to the organic compost resulting from the composting of BPC waste with different bulking agents (BAs) was studied. The addition of BCW to agro-industrial compost reduced the electrical conductivity (EC) of substrates. Multiple linear regression showed that, of the 13 variables (physical,...

REMOTE SENSING OF SEA SURFACE SALINITY: A CASE STUDY IN THE BURDEKIN RIVER, NORTH-EASTERN AUSTRALIA

Palavras-chave: Electrical conductivity; Circular economy; Easiness of removal of clod from tray; Seedling quality index; Salinity.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000600753

Gayana

Heron,M.L; Prytz,A; Stieglitz,T; Burrage,D.M.

The principles of remotely sensing sea surface salinity are briefly reviewed. The airborne instrument used for this study is a Scanning Low Frequency Microwave Radiometer (SLFMR). It has spatial resolution of typically 500m (depending on the altitude of the aircraft) and a salinity resolution of about 1 psu. This configuration is suitable for studying the dynamics of river plumes as they form on the continental shelf. The Burdekin River is one of Australia's major rivers with about 2.4% of the annual runoff from the continent. This river is in the dry tropics and has severe transient peaks which last for days to weeks during the summer monsoon season. The case study shows the river plume during growth and decay phases and is supported with in situ vertical...

Tipo: Journal article

Palavras-chave: Salinity; Microwave radiometer; Airborne; Remote sensing; River plume; Burdekin River.

Ano: 2004

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200050

Regulation of Na+ and K+ homeostasis in plants: towards improved salt stress tolerance in crop plants

Genet. Mol. Biol.

Almeida,Diego M.; Oliveira,M. Margarida; Saibo,Nelson J. M..

Abstract Soil salinity is a major abiotic stress that results in considerable crop yield losses worldwide. However, some plant genotypes show a high tolerance to soil salinity, as they manage to maintain a high K+/Na+ ratio in the cytosol, in contrast to salt stress susceptible genotypes. Although, different plant genotypes show different salt tolerance mechanisms, they all rely on the regulation and function of K+ and Na+ transporters and H+ pumps, which generate the driving force for K+ and Na+ transport. In this review we will introduce salt stress responses in plants and summarize the current knowledge about the most important ion transporters that facilitate intra- and intercellular K+ and Na+ homeostasis in these organisms. We will describe and...

Growth and yield of lettuce plants under salinity

Palavras-chave: Salinity; Sodium; Potassium; Proton pumps; Ion transporters.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000200326

Andriolo,Jerônimo L.; Luz,Gean L. da; Witter,Maiquel H.; Godoi,Rodrigo dos S.; Barros,Gisele T.; Bortolotto,Orcial C..

Lettuce plants, cv. Vera, were grown under five salinity levels in a hydroponical experimental set-up using a 0.15 m deep sand growing bed. A standard nutrient solution was used, with the following composition, in mmol L-1: 16.9 NO3-; 2.0 H2PO4-; 1.0 SO4- 4.0 Ca++; 10.9 K+ e 1.0 Mg++, and, in mg L-1, 0.42 Mn; 0.26 Zn; 0,05 Cu; 0,50 B; 0,04 Mo, and 4.82 chelated Fe. The five salinity levels compared as treatments were obtained by varying the concentration of the standard nutrient solution, reaching average electrical conductivities (EC) of 0.80; 1.93; 2.81; 3.73 and 4.72 dS m-1, for T1, T2, T3, T4 and T5, respectively. The nutrient solution at each salinity level was supplied from a reservoir by means of a flooded-type electrical pump, for 15 minutes, at...

Growth, water consumption and mineral composition of watercress under hydroponic system with brackish water

Palavras-chave: Lactuca sativa; Fertigation; Hydroponics; Salinity.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362005000400014

Lira,Raquele M; Silva,Ênio FF; Silva,Gerônimo F; Soares,Hammady R; Willadino,Lilia G.

ABSTRACT The underground water reserves in the semi-arid region present high salinity levels. However, the scarcity of the resource compels the use of this water for several human activities, including agriculture. The aim of this work was to evaluate the use of brackish water for watercress cultivation (Nasturtium officinale) in a hydroponic NFT system (laminar flow of nutrients) and effects on water consumption, growth, yield and nutrient extraction by the plant. We studied six levels of salinity (0.2; 1.2; 2.2; 3.2; 4.2 and 5.2 dS m-1), in a completely randomized experimental design, with four replicates. Salinity was obtained by the addition of NaCl into the local water supply, being these waters used to prepare the nutrient solution and to replace the...

Minitomato cultivation with substrate under different fertigation management strategies

Palavras-chave: Nasturtium officinale; Nutrient solution; NFT system; Salinity.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100013

Bezerra,Ricardo S; Evangelista,Adão Wagner P; Alves Júnior,José; Nascimento,Abadia R; Casaroli,Derblai.

ABSTRACT The application of high level of fertilization and inadequate management of fertigation in tomato crop can promote increase of salinity of the solution, nutritional imbalance and physiological disorders in the plants, consequently reduces the productivity and the quality of the fruits. The aim of this study was to evaluate different fertigation strategies in growth and production of mini tomato plants cultivated with substrate in a greenhouse. The experimental design was in randomized complete blocks with four treatments and twenty replicates. The treatments corresponded to four fertigation strategies, as follows: T1 [(control) fertigation with leaching of 20%]; T2 fertigation throughout the day and irrigation at the end of the day with leaching...

Production and quality of grafted watermelon in saline soil

Palavras-chave: Solanum lycopersicum; Salinity; Leaching.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100088

Suárez-Hernández,Ángel Manuel; Vázquez-Angulo,Juan Carlos; Grimaldo-Juárez,Onecimo; Duran,Carlos Ceceña; González-Mendoza,Daniel; Bazante-González,Isidro; Mendoza-Gómez,Aurelia.

ABSTRACT Salinity of soil in arid and semiarid regions is a problem that affects the production and quality of fruit. That’s while we evaluated grafting on watermelon plants as an alternative to reduce the salinity effects. The experimental design was of randomized blocks, three treatments (cultivars Sangria, Summer Flavor 800 and Summer Flavor 840) with three repetitions. The cultivars were evaluated in grafted and ungrafted condition. The rootstock used for grafting was the interspecific hybrid Strong Tosa (C. maxima x C. moschata). In average terms for the three cultivars, grafting increased commercial production, weight, length and diameter of fruits in 160.5%, 36.5%, 12.0% and 7.5%, respectively. Sangria presented the best answer in production with...

Diversity and Variability of the Cорероd Behaviour in Environmental Gradients: an Overview

Palavras-chave: Citrullus lanatus; Graft; Salinity; Pulp color; Lycopene.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000200215

IBSS Repository

Seregin, S. A.; Piontkovski, S. A..

The overview is based on results of long-term experimental studies оf the authors and literature data, and applies to copepod species from plankton of the Black Sea, the Mediterranean Sea and the Atlantic Ocean. The work has incorporated the analysis of diversity and variability of the locomotory acts under the impact of abiotic factors: light, temperature, salinity, and the turbulent diffusion. Variability of locomotory activity depending on intensity, orientation (for the scalar factors), from a various combination of the environmental factors is shown. One of the mechanisms of a preferred conditions selection and phenomenon of a polymodality of copepod distribution in gradient conditions of environment is analyzed on an example of Acartia clausi...

Tipo: Journal Contribution

Palavras-chave: Diversity; Copepod behaviour; Light; Temperature; Salinity; Turbulent diffusion; Pазнообразие; Поведение копепод; Свет; Температура; Соленость; Турбулентная диффузия Light Temperature Salinity Turbulent diffusion Light Temperature Salinity http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_6751.

Ano: 2003

URL: http://repository.ibss.org.ua/dspace/handle/99011/148

Relatório de identificação e reconhecimento.

VALDIVIESO SALAZAR, C. R.; CORDEIRO, G. G..

O problema de drenagem e salinidade: diagnóstico preliminar.

Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)

Palavras-chave: Salinidade; Drenagem; Salinity.

Ano: 1983

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134956

Solos afetados por sais.

Levantamento das condições de salinidade e sodicidade do Projeto de Irrigação de São Gonçalo (2a. parte).

PEREIRA, J. R..

Tolerancia das culturas a salinidade; Recuperacao de solos afetados por sais.

Tipo: Capítulo em livro técnico (INFOTECA-E)

Palavras-chave: Recuperacao; Soils; Reclamation; Salinidade; Solo; Salinity.

Ano: 1998

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132818

CORDEIRO, G. G.; BARRETO, A. N.; CARVAJAL, A. C. N..

O trabalho objetivou completar o diagnóstico da situação de salinidade de todas área do Perímetro Irrigado de São Gonçalo; Identificar áreas com problemas e/ou possibilidades de salinização e sodificação através de amostragem de solo e indicá-las por meio de técnicas cartográficas.

Tipo: Documentos (INFOTECA-E)

Palavras-chave: Projeto de Irrigação São Gonçalo; Irrigation project.; Solo; Levantamento; Salinidade; Solo Sódico.; Solo Salino; Soil; Sodic soils; Saline soils; Salinity; Surveys..

Ano: 1988

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131817

Programa de pesquisas prioritárias em tecnologia de irrigação para o Nordeste.

Drenagem subterrânea no perímetro irrigado de Bebedouro. I: estudo do lençol freático.

MILLAR, A. A..

Introducao; antecedentes sobre o Nordeste; programa de pesquisa para as areas irrigadas; pesquisa em irrigacao; pesquisa em manejo de solo eagua para as areas irrigadas com problemas de sais; transferencia da tecnologia gerada.

Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)

Palavras-chave: Nordeste; Northeast; Management; Irrigação; Água; Manejo; Pesquisa; Salinidade; Solo; Irrigation; Research; Salinity; Soil; Water.

Ano: 1978

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/159839