scholarly journals Effect of nitrogen fertilization and plant density on seed yield and fat content and quality of pot marigold (Calendula officinalis L.) under climatic conditions of Belarus

2020 ◽  
Vol 19 (5) ◽  
pp. 3-12
Author(s):  
Cezary Andrzej Kwiatkowski ◽  
Elżbieta Harasim ◽  
Alena Yakimovich
Keyword(s):  
Linoleic Acid ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Plant Density ◽  
N Fertilization ◽  
Climatic Conditions ◽  
Research Station ◽  
Fat Yield ◽  
Pot Marigold

This paper presents the results of a study on the effect of different N fertilization and seeding rates on yield and some quality parameters (of seeds) of pot marigold. A field experiment was carried out during 2014–2016 under soil and climatic conditions of Belarus (Priluki Research Station near Minsk). The experiment included the following factors: N fertilization rate 40, 60, 80, 100 kg ha–1; plant density per 1 m2 (30, 50, 70, 90).  The experiment was set up as a randomized block design in five replicates, with a single plot area of 8.0 m2. The soil in Priluki was characterized by medium nutrient availability (at the level: P = 120–127, K = 164–174, Mg = 59–66 mg kg–1 soil). Regardless of the experimental factors, weather conditions had a significant impact on pot marigold productivity. The year 2016, characterized by an even distribution of rainfall during the growing season and moderate air temperatures, proved to be most beneficial for pot marigold productivity and quality. Hydrological conditions in the other years (2014 and 2015) there was a slight drought. The year 2014 should be considered to be cold, whereas the second year of the study (2015) was moderately warm. Best production effects (seed yield, fat yield) were obtained at rates of 60–80 kg N ha–1. This rate of nitrogen fertilization also modified the fatty acid composition, contributing to a higher content of linoleic acid and calendic acid (∑ α-calendic and β-calendic acids). A nitrogen rate of 100 kg N ha–1 proved to be irrational in terms of the quantity and quality of pot marigold yield. A density of 50–70 plants per 1 m2 resulted in the highest seed and fat yield per unit area. A plant density of 50 plants per 1 m2 resulted in the highest content of C18 unsaturated acids (stearic acid, oleic acid, linoleic acid) in the oil.

scholarly journals The effect of nitrogen fertilization, sowing rates and site on yields and yield components of selected varieties of safflower (Carthamus tinctorius L.)

2011 ◽  
Vol 48 (No. 7) ◽  
pp. 307-311
Author(s):  
Z. Strašil ◽  
Z. Vorlíček
Keyword(s):  
Linoleic Acid ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Oil Content ◽  
Plant Density ◽  
Field Trials ◽  
Safflower Seed ◽  
Higher Plant ◽  
Straw Yield ◽  
N Rates

Field trials were conducted at two sites Troubsko near Brno and Prague-Ruzyně in 1996&ndash;1999 with three varieties of safflower (Gila, CW-74, Sironaria). Three rates of nitrogen fertilization were used: N0 = no fertilization, N<sub>1</sub>&nbsp;= 40 kg/ha, N<sub>2</sub> = 80 kg/ha. Sowing rates were 50 and 70 germinable seeds per m2. The average values of oil content were highest in seeds of CW-74 variety (27.2%). Gila had on average the lowest oil content (24.5%). Linoleic acid was dominant in all three safflower varieties. Variation in content of linoleic acid in different years was not so high as in oil content. The highest average content of linoleic acid was found in Gila variety (81.2%), the lowest in Sironaria (77.4%). At Ruzyně average seed yield on dry basis was 2.7 t/ha and average straw yield was 7.56 t/ha. At Troubsko seed yield was 2.56 t/ha and straw yield was 3.69 t/ha (by 50% lower than at Ruzyně). The effect of year of growing and site on seed yields and on other parameters was highly significant. N fertilization increased safflower seed yield at Troubsko site only, where the dose of 40 kg/ha N increased the yield by 0.08 t/ha on average of years and the dose of 80 kg/ha N increased the seed yield by 0.2 t/ha in comparison with no nitrogen fertilization treatments. Increased N rates and especially higher plant density resulted in an increase in straw yields. Neither were thousand seed weight nor number of flower heads influenced significantly by different N rates or the above-mentioned differences in plant density.

scholarly journals Influence of Organic and Inorganic Fertilizers on Coriander (Coriandrum sativum L.) Agronomic Traits, Essential Oil and Components under Semi-Arid Climate

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1427
Author(s):  
Gulen Ozyazici
Keyword(s):  
Essential Oil ◽  
Seed Yield ◽  
Harvest Index ◽  
Agronomic Traits ◽  
Climatic Conditions ◽  
Coriandrum Sativum ◽  
Inorganic Fertilizers ◽  
Yield And Quality ◽  
Biological Yield

Environmental contamination and the excessive use of inorganic fertilizers resulting in stagnant yields of field crops which necessitate the utilization of combined fertilization approach under changing climatic conditions. Current study was aimed to clarify the influence of several fertilizer sources (chemical, organic, organomineral fertilizers) on yield and quality of coriander (Coriandrum sativum L.). The results revealed that the fertilizer sources significantly affected the yield of coriander cultivars. The absence of “Year x Variety x Fertilizer Type” interactions for any of the noted parameters signaled that the detected “Variety x Fertilizer Type” interactions were constant regardless of the year factor. The recorded values of traits according to fertilizer sources different for the plant height from 61.85 to 69.67 cm, number of branches from 5.98 to 7.71 (piece/plant), number of umbels per the main umbel from 5.62 to 7.18 pieces, seed yield from 1.06 to 1.66 t/ha, the biological yield from 4.29 to 5.70 t ha−1, harvest index from 25.29 to 29.41%, essential oil ratio from 0.29 to 0.33%, and essential oil yield from 3.1 to 5.6 L ha−1. Erbaa variety was observed to be superior over the rest of the varieties producing the maximum values of 6.5 L ha−1 of essential oil, 0.36% essential oil content, 30.9% harvest index, 1.81 t/ha seed yield, and 5.9 t ha−1 biological yield with the treatment of chemical fertilizers.

scholarly journals Response of Soybean (Glycine max (L.) Merrill) to Mineral Nitrogen Fertilization and Bradyrhizobium japonicum Seed Inoculation

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1300
Author(s):  
Janusz Prusiński ◽  
Anna Baturo-Cieśniewska ◽  
Magdalena Borowska
Keyword(s):  
Nitrogen Fertilization ◽  
Bradyrhizobium Japonicum ◽  
Plant Density ◽  
Higher Plants ◽  
High Sensitivity ◽  
N Fertilization ◽  
Mineral N ◽  
Plant Nitrogen ◽  
Seed Inoculation ◽  
Glycine Max L

A growing interest in soybean cultivation in Poland has been observed in the recent years, however it faces a lot of difficulties resulting from a poorly understood effectiveness of plant nitrogen fertilization and from the introduction of Bradyrhizobium japonicum to the environment. The aim of the study was to evaluate the consistency of response of two soybean cultivars to three different rates of mineral N fertilization and two seed inoculation treatments with B. japonicum in field conditions over four years regardless of previous B. japonicum presence in the soil. A highly-diversified-over-years rainfall and temperature in the growing season do not allow for a definite statement of the differences resulting from seed inoculation and mineral N fertilization applied separately or jointly in soybean. A high sensitivity of the nodulation process to rainfall deficits was noted, which resulted in a decreased amount of B. japonicum DNA measured in qPCR and dry matter of nodules. ‘Annushka’ demonstrated a higher yield of seeds and protein, higher plants and the 1st pod setting. ‘Aldana’, due to a significant decrease in plant density, produced a higher number of pods, seeds per pod and the 1000 seed weight per plant. Both cultivars responded with an increase in the seed yield after seed inoculation with HiStick, also with an application of 30 and 60 kg N, as well as with Nitragina with 60 kg N.

scholarly journals PLANT DENSITY AND NITROGEN FERTILIZATION ON COMMON BEAN NUTRITION AND YIELD

2017 ◽  
Vol 30 (3) ◽  
pp. 670-678 ◽  
Author(s):  
ROGÉRIO PERES SORATTO ◽  
TIAGO ARANDA CATUCHI ◽  
EMERSON DE FREITAS CORDOVA DE SOUZA ◽  
JADER LUIS NANTES GARCIA
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Nitrogen Fertilization ◽  
Dry Matter ◽  
Plant Density ◽  
N Fertilization ◽  
N Concentration ◽  
Plant Densities ◽  
N Rates ◽  
Lower Plant

ABSTRACT The objective of this work was to evaluate the effect of plant densities and sidedressed nitrogen (N) rates on nutrition and productive performance of the common bean cultivars IPR 139 and Pérola. For each cultivar, a randomized complete block experimental design was used in a split-plot arrangement, with three replicates. Plots consisted of three plant densities (5, 7, and 9 plants ha-1) and subplots of five N rates (0, 30, 60, 120, and 180 kg ha-1). Aboveground dry matter, leaf macro- and micronutrient concentrations, yield components, grain yield, and protein concentration in grains were evaluated. Lower plant densities (5 and 7 plants m-1) increased aboveground dry matter production and the number of pods per plant and did not reduce grain yield. In the absence of N fertilization, reduction of plant density decreased N concentration in common bean leaves. Nitrogen fertilization linearly increased dry matter and leaf N concentration, mainly at lower plant densities. Regardless of plant density, the N supply linearly increased grain yield of cultivars IPR 139 and Pérola by 17.3 and 52.2%, respectively.

scholarly journals Seed Yield Components and Seed Quality of Oilseed Rape Are Impacted by Sulfur Fertilization and Its Interactions With Nitrogen Fertilization

2019 ◽  
Vol 10 ◽  
Author(s):  
Emilie Poisson ◽  
Jacques Trouverie ◽  
S. Brunel-Muguet ◽  
Yacine Akmouche ◽  
Célia Pontet ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Yield Components ◽  
Seed Quality ◽  
Seed Yield Components ◽  
Sulfur Fertilization

INFLUENCE OF NITROGEN FERTILIZATION AND MECHANICAL STUBBLE REMOVAL ON SEED PRODUCTION OF KENTUCKY BLUEGRASS IN MANITOBA

1989 ◽  
Vol 69 (3) ◽  
pp. 939-943 ◽  
Author(s):  
D. J. THOMPSON ◽  
K. W. CLARK
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Field Experiments ◽  
Poa Pratensis ◽  
Kentucky Bluegrass ◽  
N Fertilization ◽  
Shoot Height ◽  
Straw Yield ◽  
Panicle Weight

Three field experiments were performed to determine the effects of fall nitrogen fertilization and post-harvest mechanical stubble removal (to 2.5 cm) on seed yield in Kentucky bluegrass (Poa pratensis L. ’Nugget’). In all experiments, N fertilization and stubble removal increased seed yield. Increases were greater in a 3-yr-old than in a 5-yr-old stand. Nitrogen fertilization increased panicle density, panicle weight, shoot height and straw yield. Stubble removal increased panicle density, reduced panicle weight, shoot height, and straw yield and increased harvest index.Key words: Nitrogen, stubble removal, seed, Kentucky bluegrass

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