Effect of Nitrogen Fertilization on the Growth and Quality of Tamarind Seedlings Irrigated with Saline Water

Aims: The objective of this work was to evaluate the effect of nitrogen fertilization on the production of Tamarindus indica L. seedlings irrigated with saline water. Study Design: A randomized complete block design was used in a 4 x 4 factorial scheme, whose factors were the electrical conductivity levels of the irrigation water. Place and Duration of Study: The work was conducted under protected environment conditions (greenhouse) at the Federal University of Campina Grande, Center for Agro-Food Sciences and Technology, Campus of Pombal-PB, Brazil, in the period from January and March 2017. Methodology: Effects of doses of 0, 100, 200 and 300 mg of nitrogen (N) dm-3 and electrical conductivity levels of the irrigation water (ECw) (0.3, 2.1, 3.7 and 5.2 dS m-1) on growth of Tamarindus indica L. have been studied. Results: The growth of the seedlings was reduced by the increase of the electrical conductivity of the irrigation water, however, irrigation with ECw water of 2.15 dS m-1, promotes acceptable reductions of 10% in the morphology of the tamarind tree. Conclusion: The use of nitrogen fertilization with urea did not attenuate the deleterious effects of irrigation water salinity or promoted improvements of the quality of the tamarind seedlings.

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Frequency of irrigation with saline water in sugar-apple seedlings produced on substrate with polymer

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n12p825-830 ◽

2018 ◽

Vol 22 (12) ◽

pp. 825-830

Author(s):

Aldeir R. Silva ◽

Francisco T. C. Bezerra ◽

Lourival F. Cavalcante ◽

Walter E. Pereira ◽

Leandro M. Araújo ◽

...

Keyword(s):

Electrical Conductivity ◽

Irrigation Water ◽

Saline Water ◽

Block Design ◽

Irrigation Management ◽

Irrigation Frequency ◽

Irrigation Water Salinity ◽

Randomized Complete Block Design ◽

Number Of Leaves

ABSTRACT The objective of this work was to evaluate the growth of sugar-apple seedlings under irrigation management with saline water in a substrate with soil amendment. Treatments were obtained from the arrangement between polymer doses (0, 0.2, 0.6, 1.0 and 1.2 g dm-3) and levels of irrigation water electrical conductivity (0.3, 1.1, 2.7, 4.3 and 5.0 dS m-1), associated with irrigation frequencies (daily and every alternate day), and two additional treatments to evaluate container volume (1.30 and 0.75 dm3), using a randomized complete block design, with four replicates. At 120 days after sowing, the variables substrate salinity, stem diameter, plant height, number of leaves and Dickson quality index were determined. Data were submitted to analyses of variance, regression and contrast. Substrate salinity increased with the increase in irrigation water electrical conductivity and polymer doses. Growth and quality of the seedlings were reduced with increasing irrigation water salinity, and highest values of the variables were obtained in seedlings under daily irrigation. Container with larger volume led to higher growth. The use of hydrated polymer at the adopted levels had no effect on growth and quality of seedlings, requiring further studies. To produce sugar-apple seedlings with better quality, irrigation frequency should be daily and water electrical conductivity should be lower than 2 dS m-1.

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Efeito da adubação nitrogenada na formação de mudas de goiabeira irrigadas com águas salinizadas

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v10i4.3735 ◽

2015 ◽

Vol 10 (4) ◽

pp. 42 ◽

Cited By ~ 1

Author(s):

E. M. Silva ◽

R. G. Nobre ◽

L. P. Souza ◽

F. W. A. Pinheiro ◽

A. B. A. Andrade

Keyword(s):

Electrical Conductivity ◽

Leaf Area ◽

Plant Height ◽

Irrigation Water ◽

Nitrogen Fertilization ◽

Block Design ◽

Dry Mass ◽

Experimental Unit ◽

Randomized Block Design ◽

Irrigation Water Salinity

Além de favorecer o desenvolvimento e a produção das culturas, a adubação tem sido considerada uma técnica capaz de reduzir o efeito da salinidade nas plantas. Neste sentido, desenvolveu-se o trabalho para avaliar a influência de doses de nitrogênio na formação de mudas de goiabeira cv. Paluma irrigadas com águas de diferentes salinidades. O experimento foi desenvolvido em casa de vegetação do Centro de Ciências e Tecnologia Agroalimetar da UFCG, Pombal, PB com delineamento experimental em blocos casualizados, em esquema fatorial 5 x 4, sendo os tratamentos correspondentes aos níveis de condutividade elétrica da água (CEa) de 0,3; 1,1; 1,9; 2,7 e 3,5 dS m-1 associados a 70, 100, 130 e 160% da dose recomendada de nitrogênio (N) para mudas de goiabeira cv. Paluma, com quatro repetições, e cinco plantas por unidade experimental. Aos 180 dias após a emergência, a adubação nitrogenada na dose de 773 mg de N dm-3 reduz o efeito da salinidade da água de irrigação sobre o diâmetro do caule das mudas. As plantas adubadas com as doses variando de 541 a 618,4 mg de N dm-3 atingem maior crescimento em altura de planta, número de folhas e área foliar. A área foliar e a massa seca total de mudas de goiabeira atingem maiores valores no nível de CEa de 1,3 dS m-1.Effect of nitrogen fertilization in the formation of guava seedlings irrigated with salted waterAbstract: In addition to favoring the development and production of crops, the fertilizer has been considered a technique capable to reduce the effect of salinity on plants. The experiment was conducted in a greenhouse of the ‘Centro de Ciências e Tecnologia Agroalimentar’ of UFCG, Pombal, PB in a randomized block design a 5 x 4 factorial, with the treatments corresponding to the electrical conductivity of irrigation water (ECw) 0.3; 1.1; 1.9; 2.7 and 3.5 dS m-1 associated with doses of 70, 100, 130 and 160% of recommended nitrogen (N) for guava seedlings Paluma, with four replications, using five plants per experimental unit. At 180 days after emergence, the nitrogen fertilization at a dose of 773 mg N dm-3 reduces the effect of irrigation water salinity on the stem diameter of seedlings. The plants fertilized with doses ranging from 541 at 618.4 mg of the N dm-3 reach higher growth in plant height, leaf number and leaf area. The leaf area and total dry mass of guava seedlings reach higher values at the ECw level of 1.3 dS m-1.

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Production of Pityrocarpa moniliformis (Benth.) Luckow & R.W. Jobson (Fabaceae) seedlings irrigated with saline water

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v25n3p182-188 ◽

2021 ◽

Vol 25 (3) ◽

pp. 182-188

Author(s):

Adriana dos S. Ferreira ◽

Caio C. P. Leal ◽

Bruno da S. Guirra ◽

Salvador B. Torres ◽

Marco Porceddu ◽

...

Keyword(s):

Electrical Conductivity ◽

Irrigation Water ◽

Saline Water ◽

Block Design ◽

Soluble Sugars ◽

Dry Mass ◽

Initial Growth ◽

Saline Irrigation ◽

Total Soluble Sugars ◽

Chlorophylls A And B

ABSTRACT Saline irrigation water at high levels causes disturbance in the growth of more sensitive plants. The objective of this research was to evaluate the initial growth of Pityrocarpa moniliformis seedlings under different electrical conductivity in irrigation water through physiological and biochemical analyses. The experiment was conducted in a greenhouse with five water electrical conductivities (0.5, 2.0, 4.0, 6.0 and 8.0 dS m-1) and four repetitions of 20 plants each, arranged in a randomized block design. Application of the treatments with irrigation water containing NaCl began at 30 days after sowing. To determine the behaviour of the species, the following variables were analysed: stem diameter, plant height, number of leaves, leaf area, Dickson quality index, shoot dry mass, root dry mass and total dry mass, as well as the biochemical variables, such as the concentrations of total soluble sugars, free proline and chlorophylls a and b. The increase in irrigation water salinity hampered the growth of P. moniliformis seedlings, with electrical conductivity of 0.5 dS m-1 being the limit for maximum production. The results also indicated that the deleterious effects of salt stress on P. moniliformis seedlings variables increase in concentrations of proline, total soluble sugars and betaine glycine.

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Organic fertilization to attenuate water salinity effect on papaya growth

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n2p79-83 ◽

2019 ◽

Vol 23 (2) ◽

pp. 79-83

Author(s):

Mônica S. da S. Sousa ◽

Vera L. A. de Lima ◽

Marcos E. B. Brito ◽

Luderlândio de A. Silva ◽

Rômulo C. L. Moreira ◽

...

Keyword(s):

Irrigation Water ◽

Saline Water ◽

Block Design ◽

Fruit Trees ◽

Water Salinity ◽

Organic Fertilization ◽

Randomized Block Design ◽

Irrigation Water Salinity ◽

Set Up ◽

Management Alternatives

ABSTRACT The salinity of water and soil reduces the growth and production of crops, especially the fruit trees, such as papaya. Thus, it is necessary to obtain management alternatives for cultivation under these conditions. Therefore, the objective of this study was to evaluate the growth and phytomass of papaya cultivated under irrigation with saline water and organic fertilization. An experiment was set up using a randomized block design, with the treatments distributed in a 5 x 2 factorial scheme, consisting of five levels of salinity of irrigation water (0.6, 1.2, 1.8, 2.4 and 3.0 dS m-1) and two levels of organic fertilization (10 and 20 L of bovine manure per plant), with three replications, totaling thirty experimental plots. Growth variables of papaya were evaluated. Papaya plants were negatively affected by irrigation water salinity, with a greater effect on the number of leaves and on dry phytomass of leaves, with no effect of bovine manure levels.

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Growth and quality of soursop (Annona muricata, L.) seedlings under saline stress and hydrogen peroxide (H2O2)

Australian Journal of Crop Science ◽

10.21475/ajcs.19.13.10.p1857 ◽

2017 ◽

pp. 1643-1649

Author(s):

André Alisson Rodrigues da Silva ◽

Luana Lucas de Sá Almeida Veloso ◽

Geovani Soares de Lima ◽

Carlos Alberto Vieira de Azevedo ◽

Hans Raj Gheyi ◽

...

Keyword(s):

Electrical Conductivity ◽

Hydrogen Peroxide ◽

Irrigation Water ◽

Saline Water ◽

Saline Stress ◽

Annona Muricata ◽

Relative Growth ◽

Saline Water Irrigation ◽

Sensitive Variable

This study aimed to evaluate growth and quality of soursop seedlings cv. Morada Nova, as a function of saline water irrigation and exogenous applications of hydrogen peroxide (H2O2), under greenhouse conditions. The experimental design used was randomized blocks in 5 x 5 factorial scheme, corresponding to the combination of five levels of irrigation water electrical conductivity – ECw (0.7, 1.4, 2.1, 2.8 and 3.5 dS m-1) and five concentrations of hydrogen peroxide (0, 25, 50, 75 and 100 µM). The results showed that Hydrogen peroxide concentrations were applied by soaking the seed for 24 h and by spraying on all leaves of soursop seedlings. Irrigation water above electrical conductivity of 0.7 dS m-1 negatively affected growth and quality of soursop seedlings cv. Morada Nova. The dry phytomass of root was the most sensitive variable to saline stress. Hydrogen peroxide concentrations of 31 and 100 µM led to highest relative growth rate in leaf area and dry phytomass of leaves and stem, respectively. The quality of soursop seedlings cv. Morada Nova was not compromised by using water with electrical conductivity of 3.5 dS m-1 in irrigation.

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Morphophysiology of guava under saline water irrigation and nitrogen fertilization

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n1p32-37 ◽

2018 ◽

Vol 22 (1) ◽

pp. 32-37 ◽

Cited By ~ 3

Author(s):

Idelfonso L. Bezerra ◽

Reginaldo G. Nobre ◽

Hans R. Gheyi ◽

Leandro de P. Souza ◽

Francisco W. A. Pinheiro ◽

...

Keyword(s):

Leaf Area ◽

Irrigation Water ◽

Saline Water ◽

Block Design ◽

N Fertilization ◽

Water Salinity ◽

Randomized Block Design ◽

Irrigation Water Salinity ◽

N Dose ◽

Number Of Leaves

ABSTRACT The aim of this study was to evaluate the growth of grafted guava cv. ‘Paluma’ subjected to different concentrations of salts in irrigation water and nitrogen (N) fertilization. The plants were transplanted to 150 L lysimeters and under field conditions at the Science and Agri-food Technology Center of the Federal University of Campina Grande, in the municipality of Pombal - PB. The experiment was conducted in randomized block design in a 5 x 4 factorial scheme, with three replicates, and the treatments corresponded to five levels of electrical conductivity of irrigation water - ECw (0.3; 1.1; 1.9; 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the crop). The doses equivalent to 100% corresponded to 541.1 mg of N dm-3 of soil. Irrigation water salinity above 0.3 dS m-1 negatively affects the number of leaves, leaf area, stem diameter, dry phytomass of leaves, branches and shoots . A significant interaction between irrigation water salinity and N fertilization was observed only for the number of leaves and leaf area at 120 days after transplanting. N dose above 70% of the recommendation (378.7 mg N dm-3 soil) did not mitigate the deleterious effects caused by salt stress on plant growth.

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Allometry and morphophysiology of papaya seedlings in a substrate with polymer under irrigation with saline water

Comunicata Scientiae ◽

10.14295/cs.v11i0.3339 ◽

2020 ◽

Vol 11 ◽

pp. e3339

Author(s):

EXPEDITO CAVALCANTE NASCIMENTO NETO ◽

Francisco Thiago Coelho Bezerra ◽

Marlene Alexandrina Ferreira Bezerra ◽

Walter Esfrain Pereira ◽

Lourival Ferreira Cavalcante ◽

...

Keyword(s):

Electrical Conductivity ◽

Leaf Area ◽

Irrigation Water ◽

Saline Water ◽

Block Design ◽

Dry Mass ◽

Area Ratio ◽

Irrigation Frequency ◽

Randomized Block Design ◽

Blade Area

The availability and quality of the irrigation water are among the limitations for the development of agriculture in the semiarid. Aiming at gathering information on these limitations, this work aimed to evaluate the association between a water-absorbing polymer and water salinity in irrigation frequencies, as well as container volumes on the allometric and morphophysiological indices of seedlings of the papaya (Carica papaya) cultivar ‘Sunrise Solo’. The treatments were obtained from the combination between the water-absorbing polymer (0.0; 0.2; 0.6; 1.0, and; 1.2 g dm-3), the electrical conductivity of the irrigation water (0.3; 1.1; 2.7; 4.3, and; 5.0 dS m-1), and irrigation frequencies (daily and alternate), plus two additional treatments (0.75 and 1.30 dm3) to study the effects of the container volume, distributed in a randomized block design. At 55 days after sowing, the following characteristics were evaluated: ratio between stem height and diameter; ratio between shoot and root dry matter; root density; leaf blade area; ratio between total leaf area and root dry mass; specific leaf area; leaf area ratio; leaf mass ratio; and Dickson quality index. The allometric and morphophysiological indices were damaged by the increase of water electrical conductivity and favored by the application of the polymer and a higher irrigation frequency. In the production of papaya seedlings, a daily irrigation frequency must be prioritized, using containers of 0.75 or 1.30 dm-3, water with electrical conductivity up to 2.6 and 1.9 dS m-1 when irrigated daily or in alternate days, respectively, and 0.6 g dm-3 of polymer.

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Fertilização organomineral e águas salinas na produção de fitomassa de Capsicum annuum

Revista Principia - Divulgação Científica e Tecnológica do IFPB ◽

10.18265/1517-03062015v1n50p179-188 ◽

2020 ◽

Vol 1 (50) ◽

pp. 179

Author(s):

Francisco de Oliveira Mesquita ◽

Antônio Gustavo Luna Souto ◽

Adriana Araújo Diniz ◽

Jackson de Mesquita Alves ◽

Alex Serafim de Lima ◽

...

Keyword(s):

Electrical Conductivity ◽

Experimental Design ◽

Capsicum Annuum ◽

Irrigation Water ◽

Saline Water ◽

Organic Input ◽

Maximum Capacity ◽

Polyethylene Bags ◽

The Common

An experiment was carried out in a greenhouse, from march to april/2018, in Crato-CE to evaluate the effects of biofertilizers (common and chemically rich) in substrate irrigated with different saline compositions on phytomass production of yellow pepper seedlings, success variety (952). The experiment was developed using a material or substrate from the first 20 cm of a Red-yellow Latosol. The experimental design was completely randomized in a 5x3 factorial scheme, with three replications referring to the electrical conductivity values of the irrigation water: 0.5; 1.0; 2.0; 3.0 and 4.0 dS m-1 in the soil without the organic input; with common biofertilizer, and in soil with rich biofertilizer, totalizing 45 treatments, packed in black polyethylene bags with a maximum capacity of 3.0 kg. The biofertilizer, after dilution in a 3:1 ratio, was applied only once to 10% of the substrate volume two days before sowing. Irrigation with saline water affected the morphology and quality of yellow pepper seedlings (cv. Success) but with less intensity in the treatments that received the common and rich organic inputs, respectively.

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Tolerance of melon cultivars to irrigation water salinity

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v21n12p846-851 ◽

2017 ◽

Vol 21 (12) ◽

pp. 846-851 ◽

Cited By ~ 10

Author(s):

Francisco A. de L. Pereira ◽

José F. de Medeiros ◽

Hans R. Gheyi ◽

Nildo da S. Dias ◽

Welka Preston ◽

...

Keyword(s):

Irrigation Water ◽

High Salinity ◽

Saline Water ◽

Block Design ◽

Fruit Weight ◽

Soluble Solids ◽

Water Salinity ◽

Yield Reduction ◽

Balance Growth ◽

Irrigation Water Salinity

ABSTRACT The use of saline water for irrigation causes severe restriction to nutritional balance, growth and production in many crops due to the effect of salts on plant and soil. The objective of this study was to investigate the response of melon (Cucumis melo L.) cultivars to various levels of irrigation water salinity on yield and fruit quality. A field experiment was conducted in a split-plot randomized block design with four replicates. The factors were five levels of irrigation water salinity (0.54, 1.48, 2.02, 3.03 and 3.90 dS m-1) in the plots and five melon cultivars (C1 - Sancho - Pele de sapo; C2 - Medellín - Pele de sapo; C3 - Mandacaru - Canary; C4 - Néctar - Galia; C5 - Sedna - Cantaloupe) in the sub-plots. According to the results, among the five genotypes studied, Sancho was the most salt-tolerant genotype, followed by Mandacaru, Medellín, Sedna and Néctar. Since irrigation water salinity did not influence the mean fruit weight, the reduction in the number of fruits was the main cause of yield reduction of the melon crop under high salinity water. The contents of total soluble solids increased under high salinity level.

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Ocimum basilicum L. Seeds Quality as Submitted to Saline Stress and Salicylic Acid

Journal of Agricultural Science ◽

10.5539/jas.v10n5p159 ◽

2018 ◽

Vol 10 (5) ◽

pp. 159

Author(s):

Toshik Iarley da Silva ◽

Jackson Silva Nóbrega ◽

Francisco Romário Andrade Figueiredo ◽

Leonardo Vieira de Sousa ◽

João Everthon da Silva Ribeiro ◽

...

Keyword(s):

Salicylic Acid ◽

Irrigation Water ◽

Block Design ◽

Dry Mass ◽

Ocimum Basilicum ◽

Saline Stress ◽

Modern Agriculture ◽

Seedling Length ◽

Irrigation Water Salinity

The quality of the seeds is of great importance for the cultivation of plants, however, the quality can be altered by the abiotic effects, amongst such, saline stress. Salinity is one of the great obstacles faced by modern agriculture, however, alternatives have been researched to mitigate its effects, where it is possible to mention the use of salicylic acid. The objective of this study was to evaluate the quality of basil (Ocimum basilicum L.) seeds cultivated using applications of salicylic acid to attenuate the irrigation water salinity. The experimental design was a completely randomized complete block design in incomplete factor scheme, with five conductivities for irrigation water (0.5, 1.3, 3.25, 5.2, 6.0 dS m-1) and five salicylic acid doses (0.0, 0.29, 1.0, 1.71 and 2.0 mM), with five and four replicates, respectively. The electrical conductivity presented an effect on germination, while the salicylic acid presented an effect on the germination speed index, emergence speed index, shoot length, root and seedling length, and seedlings dry mass. The highest correlations were obtained amongst the germination variables. Therefore, it is possible to affirm that salicylic acid can be used up to the dose of 1.0 mM with no further damage to basil seeds’ quality.

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