scholarly journals Interaction of nitrogen fertilization and irrigation water salinity on growth of maize (Zea mays L.) in a two-way line-source sprinkler system

1989 ◽  
Vol 6 (1) ◽  
pp. 78-82
Author(s):  
R. E. Steynberg ◽  
D. Magnusson ◽  
Y. Ben-Asher ◽  
M. Silberbush
Keyword(s):  
Zea Mays ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Line Source ◽  
Zea Mays L ◽  
Sprinkler System ◽  
Water Salinity ◽  
Irrigation Water Salinity

scholarly journals Phosphorus Fertilization Enhances Productivity of Forage Corn (Zea mays L.) Irrigated with Saline Water

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2608
Author(s):  
Hamza Bouras ◽  
Ahmed Bouaziz ◽  
Redouane Choukr-Allah ◽  
Abdelaziz Hirich ◽  
Krishna Prasad Devkota ◽  
...  
Keyword(s):  
Zea Mays ◽  
Stomatal Conductance ◽  
Irrigation Water ◽  
Dry Matter ◽  
Zea Mays L ◽  
High Salinity ◽  
Water Salinity ◽  
Phosphorus Fertilization ◽  
Dry Matter Yield ◽  
Irrigation Water Salinity

Salinity is a major problem affecting crop production in many regions in the world including Morocco. Agricultural practices such as fertilization could be useful to overcome this problem and improve crop productivity. The objective of our study was to evaluate the combined effect of phosphorus fertilization and irrigation water salinity on growth, yield, and stomatal conductance of forage corn (Zea mays L.) cv. “Sy sincerro”. Field experiments were carried out for two years testing four levels of irrigation water salinity (ECw = 0.7; 2, 4, and 6 dS·m−1) and three rates of phosphorus (105, 126, and 150 kg P2O5·ha−1) fertilization conducted in a split-plot design with three replications. The obtained results show that irrigation water salinity had a negative effect on all monitored parameters. For instance, the dry matter yield reduced by an average of 19.3 and 25.1% compared to the control under saline irrigation with an EC value equal to 4 and 6 dS·m−1, respectively. The finding also showed that phosphorus applications tend to increase root weight, root length, stem length, leaf stomatal conductance, grain yield and dry matter yield under salinity conditions. For example, the addition of phosphorus with a rate of 126 and 150 kg P2O5·ha−1 respectively improved dry matter yield by an average of 4 and 9% under low salinity level (ECw = 2 dS·m−1), by 4 and 15% under medium salinity (4 dS·m−1), and by 6 and 8% under a high salinity level (6 dS·m−1). Our finding suggests that supplementary P application could be one of the best practices to reduce the adverse effects of high salinity on growth and development of forage corn.

scholarly journals Morphophysiology of the passion fruit ‘BRS Rubi do Cerrado’ irrigated with saline waters and nitrogen fertilization

2020 ◽  
Vol 12 ◽  
pp. e3456
Author(s):  
Alzira Maria de Sousa Silva Neta ◽  
Lauriane Almeida dos Anjos Soares ◽  
Geovani Soares de Lima ◽  
Luderlandio de Andrade Silva ◽  
Fagner Nogueira Ferreira ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Co2 Assimilation ◽  
Passion Fruit ◽  
Water Salinity ◽  
Assimilation Rate ◽  
Co2 Assimilation Rate ◽  
Irrigation Water Salinity ◽  
Salinity Levels ◽  
Purple Passion Fruit

This study aimed to evaluate the gas exchanges and growth of the purple passion fruit cultivar ‘BRS Rubi do Cerrado’ as a function of the salinity levels of the irrigation water and nitrogen fertilization. The research was conducted in pots adapted as drainage lysimeters, placed within a plant nursery, using a Regolithic Neosol of sandy texture, in the municipality of Pombal-PB, Brazil. A randomized block design was used, testing five levels of electrical conductivity of irrigation water (0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1) associated with four doses of nitrogen (50, 75, 100, and 125% of the recommendation). The irrigation water salinity above 0.3 dS m-1 compromised the leaf area and the relative water content of the purple passion fruit ‘BRS Rubi do Cerrado’. High doses of nitrogen enhance the deleterious effects of irrigation water salinity on stomatal conductance, transpiration, internal CO2 concentration, CO2 assimilation rate, number of leaves, stem diameter, and height of purple passion fruit plants. When waters with salinity levels of up to 1.3 dS m-1 are used, the dose of 125 mg of N kg-1 of soil is recommendation for providing increases in the CO2 assimilation rate of the purple passion fruit ‘BRS Rubi do Cerrado’ at 70 days after sowing (DAS). Water salinity increases electrolyte leakage, regardless of nitrogen doses.

scholarly journals Gas exchange in yellow passion fruit under irrigation water salinity and nitrogen fertilization

2022 ◽  
Vol 26 (2) ◽  
pp. 135-141
Author(s):  
José A. C. Wanderley ◽  
Carlos A. V. de Azevedo ◽  
Marcos E. B. Brito ◽  
Fagner N. Ferreira ◽  
Mailson A. Cordão ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Co2 Concentration ◽  
Passion Fruit ◽  
Water Salinity ◽  
Irrigation Water Salinity ◽  
Electrical Conductivities ◽  
Salinity Levels ◽  
Internal Co2

ABSTRACT The objective of this study was to evaluate the gas exchange of ‘Redondo Amarelo’ passion fruit seedlings under the mitigating action of nitrogen fertilization on the salinity of irrigation water. The experiment was carried out in a greenhouse of the Universidade Federal de Campina Grande (CCTA-UFCG), Campus of Pombal, PB, Brazil, The experimental design was in randomized blocks, split plots, comprising five irrigation water electrical conductivities (plot) (ECw) (0.3; 1.0; 1.7; 2.4 and 3.1 dS m-1) and five doses of nitrogen (subplot) (60; 80; 100; 120 and 140% of 300 mg of N dm-3), in five blocks. Plants were grown in pots (Citropote JKS®) with volume of 3.780 mL, filled with soil, bovine manure, wood shavings in a proportion of 2:1:0.5 (mass basis), respectively. Water with salinity levels was applied in the period from 40 to 85 days after sowing. The internal CO2 concentration, transpiration, stomatal conductance and photosynthesis were measured at 55 and 70 days after sowing. There was an attenuating effect of nitrogen doses at irrigation water electrical conductivities of 1.7 and 2.4 dS m-1 on photosynthesis at 55 DAS. Irrigation water salinity reduces most of the variables evaluated, especially at the highest level studied (3.1 dS m-1).

scholarly journals Growth and physiology of maize under water salinity and nitrogen fertilization in two soils

2019 ◽  
Vol 23 (12) ◽  
pp. 907-913 ◽  
Author(s):  
Régis dos S. Braz ◽  
Claudivan F. de Lacerda ◽  
Raimundo N. de Assis Júnior ◽  
Jorge F. da S. Ferreira ◽  
Adriana C. de Oliveira ◽  
...  
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilization ◽  
Root Biomass ◽  
Saline Water ◽  
Physiological Responses ◽  
Water Salinity ◽  
Soil Columns ◽  
Gas Exchanges ◽  
Irrigation Water Salinity ◽  
Leaf Gas Exchanges

ABSTRACT The nitrogen fertilization, in general, minimizes the effects of salinity on plants, but the mitigating action depends on plant species, cultivar, soil texture and plant age, among other factors. The objective of this study was to evaluate the effects of irrigation water salinity and nitrogen fertilization on maize physiology and growth (Zea mays) in soils with different textures. The experiment was carried out in a greenhouse in Fortaleza City, CE, Brazil, in PVC soil columns (100 x 20 cm). The design was completely randomized using the factorial 2 x 2 x 4, referring to two soils, an Ultisol and a Quartzipsamment, nitrogen doses of 105 and 210 kg ha-1, under irrigation with saline water of 0.5, 2.0, 4.0 and 6.0 dS m-1, with four repetitions. With the exception of stem diameter, salinity of water impaired plant growth and leaf gas exchanges. The Ultisol provided better growth and physiological responses compared to the Quartzipsamment. The nitrogen doses did not mitigate growth variables except root biomass. The gas exchanges increased with the highest nitrogen dose, without interaction with the salinity.

scholarly journals Physiological changes of pomegranate seedlings under salt stress and nitrogen fertilization

2021 ◽  
Vol 25 (7) ◽  
pp. 453-459
Author(s):  
Lauriane A. dos A. Soares ◽  
Sabrina G. de Oliveira ◽  
Geovani S. de Lima ◽  
Pedro D. Fernandes ◽  
Railene H. C. R. Araújo ◽  
...  
Keyword(s):  
Salt Stress ◽  
Gas Exchange ◽  
Photosynthetic Pigments ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Electrolyte Leakage ◽  
Co2 Assimilation ◽  
Water Salinity ◽  
Physiological Changes ◽  
Irrigation Water Salinity

HIGHLIGHTS Irrigation water salinity alters gas exchange and biosynthesis of photosynthetic pigments in po-megranate. The reduction in CO2 assimilation in pomegranate plants under salt stress is related to non-stomatal factors. Increasing nitrogen doses increase electrolyte leakage in pomegranate seedlings.

scholarly journals CELL DAMAGE AND BIOMASS OF YELLOW PASSION FRUIT UNDER WATER SALINITY AND NITROGEN FERTILIZATION

2020 ◽  
Vol 33 (3) ◽  
pp. 757-765
Author(s):  
JOSÉ ALBERTO CALADO WANDERLEY ◽  
MARCOS ERIC BARBOSA BRITO ◽  
CARLOS ALBERTO VIEIRA DE AZEVEDO ◽  
FRANCISCO DAS CHAGAS SILVA ◽  
FAGNER NOGUEIRA FERREIRA ◽  
...  
Keyword(s):  
Cell Membrane ◽  
Leaf Area ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Cell Damage ◽  
Passion Fruit ◽  
Water Salinity ◽  
Irrigation Water Salinity ◽  
Dry Biomass ◽  
Yellow Passion Fruit

ABSTRACT The aimed of this study was to evaluate the attenuating action of nitrogen doses on leaf cell membrane damage, dry biomass production and leaf area in the formation of yellow passion fruit seedlings irrigated with saline water. Treatments were arranged in a randomized block design, in split plots, corresponding to five levels of irrigation water salinity (plot) (ECw) (0.3; 1.0; 1.7; 2.4 and 3.1 dS m-1) and five doses of nitrogen fertilization (subplot) (60; 80; 100; 120 and 140% of 300 mg of N dm-3), which were repeated in five blocks. Plants were grown in pots (Citropote®) with a volume of 3,780 mL, which were filled with a mixture of soil, aged bovine manure and sawmill residue (shaving) in a ratio of 2:1:0.5, respectively. Waters with different levels of salinity were applied from 40 to 85 days after sowing, when the plants were in transplanting conditions. At 85 days after sowing, the percentage of cell damage based on electrolyte leakage, variables of dry biomass, leaf area and specific leaf area were evaluated. Increment in irrigation water salinity reduces the biomass accumulation of yellow passion fruit seedlings; The increase in nitrogen dose did not mitigate the effect of salinity, which reduced cell membrane integrity, making the plant more sensitive.

scholarly journals Combining Ability and Heterosis of Algerian Saharan Maize Populations (Zea mays L.) for Tolerance to No-Nitrogen Fertilization and Drought

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 492
Author(s):  
Meriem Riache ◽  
Pedro Revilla ◽  
Oula Maafi ◽  
Rosa Ana Malvar ◽  
Abderahmane Djemel
Keyword(s):  
Zea Mays ◽  
Stress Tolerance ◽  
Nitrogen Fertilization ◽  
Recurrent Selection ◽  
Zea Mays L ◽  
Base Material ◽  
N Fertilization ◽  
Nitrogen Stress ◽  
Reciprocal Recurrent Selection ◽  
Maize Populations

Drought and low nitrogen are major stresses for maize (Zea mays L.), and maize populations from the Sahara Desert are potential sources of stress tolerance. The objectives were to assess the tolerance and varietal and heterosis effects of Algerian populations under no-nitrogen fertilization and water stress. A diallel among six Algerian maize population was evaluated under drought (300 mm irrigation) vs. control (600 mm) and no-nitrogen fertilization vs. 120 kh ha−1 N fertilization. Genotypes showed significant differences and genetic effects for water- and nitrogen-stress tolerance. We propose a reciprocal recurrent selection to take advantage of additive and non-additive effects, using AOR and IGS, since they showed good performance in optimum and stress conditions, for improving yield heterosis for AOR × IGS. Negative effects are not expected on plant height, anthesis–silking interval or early vigor. These populations and BAH could be sources of inbred lines tolerant to drought and no-nitrogen fertilization. There was no relationship between origin and genetic group and stress tolerance per se or as parents of tolerant crosses. These populations and crosses could be used as base material among Algerian populations, for breeding programs focusing on tolerance to water or nitrogen stress.

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