scholarly journals The effect of Lignofert organic fertilizer on formation and quality of head lettuce yield

2011 ◽  
Vol 33 (No. 3) ◽  
pp. 114-118
Author(s):  
M. Valšíková ◽  
A. Viteková
Keyword(s):  
Biological Material ◽  
Organic Fertilizer ◽  
Field Conditions ◽  
Nitrate Content ◽  
Average Weight ◽  
Control Variant ◽  
Lettuce Yield ◽  
Soil Substrates

Nowadays soils for vegetable growing are poor in humus because the possibility of using stable dung is limited. The application of Lignofert organic carbonaceous fertilizer made of ground lignite seems to be a solution. It is intended as a fertilizer for the field or greenhouse growing of vegetables, as a component to composts, soil substrates and likewise. Lignofert effects on the formation of lettuce yield, weight of heads and NaNO<sub>3</sub> content were studied in 2003 to 2005. Head lettuce grown in a greenhouse and in field conditions was a biological material. Average lettuce yields and average weight of heads in 2005 were statistically highly significantly higher in variants with Lignofert in comparison with the control variant grown in the greenhouse and in the field. The Lignofert effect on nitrate content in lettuce heads was not proved statistically. &nbsp;

Yield and quality of Brassica campestris L. using organic fertilizer with lowered nitrate content

2017 ◽  
pp. 121-128
Author(s):  
Q. Xiao ◽  
B. Cao ◽  
G.Y. Zou ◽  
J.C. Wang ◽  
X.H. Ni ◽  
...  
Keyword(s):  
Brassica Campestris ◽  
Organic Fertilizer ◽  
Nitrate Content ◽  
Yield And Quality

scholarly journals Yield and nutritional quality of greenhouse lettuce (Lactuca sativa L.) as affected by genotype and production methods

Genetika ◽  
2014 ◽  
Vol 46 (3) ◽  
pp. 1027-1036 ◽  
Author(s):  
Aleksandra Govedarica-Lucic ◽  
Mirjana Mojevic ◽  
Goran Perkovic ◽  
Branka Govedarica
Keyword(s):  
Lactuca Sativa ◽  
Nutritional Quality ◽  
Bare Soil ◽  
Production Method ◽  
Nitrate Content ◽  
The European Union ◽  
Production Methods ◽  
Lactuca Sativa L ◽  
Control Variant

Greenhouse experiments were conducted in winter growing seasons in order to evaluate the effects of genotype and production methods on yield and nutritional quality of lettuce (Lactuca sativa L.). A three-year (2009-2011) study was conducted by randomized block system in a greenhouse without additional heating. The trial included three genotypes of lettuce (Archimedes RZ, Santoro RZ, Kibou RZ). Each row with these genotypes was exposed to the following variants of covering: control-planting on bare soil, mulching before sowing with PE-black foil, agro textile-covering plants after planting with agro textile (17 g), a combination of mulching + agro textile. Throughout of all the three years of the trial, it was continuously evidenced that the genotype ?Santoro RZ? had the biggest heads and the highest yield (15.33 kg 10 m-2), which leads to conclusion that the yield of lettuce is a genotype characteristics. Moreover, the nutritional value (ascorbic acid concentration) has shown that, depending on the method of production, in average, the combination of mulching + agro textile (26.77 mg 100 g-1) had the highest content while the control variant had significantly lower vitamin C content (21.10 mg 100 g-1). The three-year researches have shown that the production method and genotype significantly affect the nitrate content. An average nitrate content was 2196.33 mg kg-1 on the control variant, and 2526.24 mg kg-1 on agro textile. Leafy lettuce of genotyp ?Kibou RZ? had lower nitrate content (2176.85 mg kg-1) compared to ?Archimedes RZ? (2843.05 mg kg-1) and ?Santoro RZ? (2221.37 mg kg-1). However nitrate concentration in all treatments remained within the European Union?s permissible levels.

scholarly journals EFFECT OF ORGANIC FERTILIZATION ON THE QUANTITY AND QUALITY OF MELON PRODUCTION

2019 ◽  
pp. 176-183
Keyword(s):  
Antioxidant Activity ◽  
Dry Matter ◽  
Organic Fertilizer ◽  
Plant Production ◽  
Average Weight ◽  
Conventional Farming ◽  
Dpph Method ◽  
Positive Correlations ◽  
Alternative Practices

Growing environmental impact of conventional farming practices, gradually impacts soil structure and biological balance. This has forced the development of alternative practices to reduce and mitigate these effects. Types of fertilizers influence the quantity and quality of production. Following this idea, in 2016, in a crop of melon in a polyethylene tunnel, Lignohumat organic fertilizer was used, a granular humic product, which was applied during vegetation, in three stages and three fertilization doses: 100; 150 and 200 g/ha. Melon plants (Charentais variety) fertilized with Lignohumat at different doses showed positive results compared to the unfertilized variant. Results showed that application of the 150 g/ha dose significantly improved (P ≤ 0.05) the average number of fruits/plants, their average weight, fruit/plant production and the production/m2 but also the quality of fruits: soluble dry matter – 8.55%, total dry matter – 12.12%, reducing sugars – 3.40%, vitamin C - 21.12 mg/100 g, carotene - 36.42 mg/100 g f.m and antioxidant activity of 175.92 μMTE/100 g (ABTS method) and 228.16 μMTE/100 g (DPPH method). Antioxidant activity was evaluated using 2.2-diphenyl-1-picrylhydrazyl (DPPH) 2.2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS). Significant positive correlations were identified for very importants parameters.

scholarly journals The effect of nitrogen and sulphur fertilization on the yield and content of sulforaphane and nitrates in cauliflower

2011 ◽  
Vol 59 (5) ◽  
pp. 17-22
Author(s):  
Nina Čekey ◽  
Miroslav Šlosár ◽  
Anton Uher ◽  
Zoltán Balogh ◽  
Magdaléna Valšíková ◽  
...  
Keyword(s):  
Field Experiment ◽  
The Other ◽  
Nitrate Content ◽  
Research Subject ◽  
Nitrate Accumulation ◽  
Health Promoting ◽  
Fertilization Effect ◽  
Control Variant ◽  
Data Point

In the field experiment with cauliflower, we investigated the effect of four different variants of nitrogen and suplhur fertilization on quantity and quality of cauliflower in the term of sulforaphane content and nitrate accumulation. The influence of fertilization was statistically significant between control variant and fertilization variants and in both experimental years within all parameters of cauliflower yield. The highest yield of cauliflower was reached at the variant 4 when it was fertilized on the level of nutrients N:S = 250:60 kg.ha−1. The increase of yield against control variant represented value 26.6%. The applied fertilization positively affected on the accumulation sulforaphane in the cauliflower. Its highest content was determined at the variant 4 (N:S = 250:60 kg.ha−1). In comparison with control variant, the sulforaphane content was increased about 18.4%. On the other side, applied nutrition resulted in increased accumulation of nitrates in the cauliflower. The most increase of nitrate content, compared to the control variant, was also ascertained at the variant 4 (about 31.4%).The gathered data point towards to the possibility and way how we could effect on the increased accumulation of sulforaphane in cauliflower florets. This sphere of fertilization effect on the sulforaphane content is not sufficiently explored well. Our aim is to continue in this research subject and to find way how to cultivate vegetables with higher content of health-promoting compounds.

scholarly journals Features of the economical yield formation of apple plants under non-root nutrition in the Southern Russia organic plantings

2021 ◽  
Vol 34 ◽  
pp. 05004
Author(s):  
Tatiana Doroshenko ◽  
Lyudmila Ryazanova ◽  
Galina Petrik ◽  
Igor Gorbunov ◽  
Sergey Chumakov
Keyword(s):  
Organic Fertilizer ◽  
Late Summer ◽  
Fertilizer Application ◽  
Average Weight ◽  
Control Value ◽  
Southern Russia ◽  
Favorable Conditions ◽  
Yield Formation ◽  
Abscisic Acid Content

In this work are determined the prospects of application new complex fertilizer chelate “Naliv” for apple plants non-root nutrition in connection with optimization of economic yield formation in the Southern Russia organic plantations. The field experiment was carried out in the organic apple tree plantations of the educational farm "Kuban" of the KubSAU, planted in 2002. The experimental field soil is leached chernozem. Trees foliar dressing was carried out with organic fertilizer 40-45 days before harvest. Control variant was trees treatment with water. The accumulation of glucose and fructose, associated with a significant (1.4 times) increase in their average weight, activate in ripening fruits under fertilizer application as a late-summer foliar dressing. Equally, the economic yield increases by 14% compared to control value. The fertilizer application accelerates the generative apple bud dormancy beginning and, accordingly, dormancy ending. An increase in the abscisic acid content in generative buds in late autumn, initiated by the fertilizer action, plays a certain role in achieving this effect. Equally, the plants resistance to low temperatures of the spring increases. Thus, favorable conditions are created to improve the commercial quality of fruits and optimize fruiting in adjacent years under fertilizers application in organic apple plantations.

Yield and quality of Brassica campestris L. using organic fertilizer with lowered nitrate content

2018 ◽  
pp. 121-128
Author(s):  
Q. Xiao ◽  
B. Cao ◽  
G.Y. Zou ◽  
J.C. Wang ◽  
X.H. Ni ◽  
...  
Keyword(s):  
Brassica Campestris ◽  
Organic Fertilizer ◽  
Nitrate Content ◽  
Yield And Quality

scholarly journals Effects of different extractions on growth and nutritional quality of hydroponic endivia

2021 ◽  
Vol 292 ◽  
pp. 03086
Author(s):  
Chunyan Li ◽  
Jianchao Mo ◽  
Yuhang Liu ◽  
Ruijie Zhang ◽  
Haixia Wang ◽  
...  
Keyword(s):  
Nutritional Quality ◽  
Organic Fertilizer ◽  
Soluble Sugar ◽  
Nitrate Content ◽  
Soluble Protein Content ◽  
Distiller's Grains ◽  
Shoot Ratio ◽  
Treatment Conditions ◽  
Root Shoot Ratio

In this study, Hydroponic endivia with completely decomposed distiller’s grains, tea residue and extraction of commercial organic manure were applied to study its effects on growth and nutritional quality of endivia, as compared with modified Hoagland nutrient. The results showed that the root-shoot ratio of endivia under all treatment conditions was higher than that in CK group. Among them, treatment Ⅳ exhibited best improve efficiency; the treatment of Ⅰ, Ⅱ, Ⅴ, Ⅵ were beneficial to reduce the nitrate content. The treatment Ⅰ significantly increased the content of VC and soluble sugar. The soluble protein content of treatment Ⅴ was the highest. Above all, the application of tea residue and commercial organic fertilizer extracts in the actual production of hydroponic lettuce needs further and deeper research.

scholarly journals Plant Microbial Biostimulants as a Promising Tool to Enhance the Productivity and Quality of Carrot Root Crops

2021 ◽  
Vol 9 (9) ◽  
pp. 1850
Author(s):  
Virgilija Gavelienė ◽  
Božena Šocik ◽  
Elžbieta Jankovska-Bortkevič ◽  
Sigita Jurkonienė
Keyword(s):  
Production Systems ◽  
Growth Yield ◽  
Nitrate Content ◽  
Maturation Stage ◽  
Average Weight ◽  
Nitrate Accumulation ◽  
Commercial Plant ◽  
Promising Tool ◽  
The Impact

The interest in studies focused on applying probiotic microorganisms is increasing due to sustainable agriculture development. In this research, we aimed to evaluate the impact of two commercial plant probiotics—ProbioHumus and NaturGel on carrot growth, yield, and quality in organic and nonorganic production systems. The research was carried out under laboratory and field conditions. Plants were treated with probiotics (2 L/ha) at the nine leaves stage. Biometrical measurements and chemical analyses were performed at a maturation stage. The average weight of carrot roots increased by 17 and 20 g in the test variant with ProbioHumus as compared to the control in the organic and nonorganic farms, respectively. Plant microbial biostimulants ProbioHumus and NaturGel had a positive effect on the quality of carrots from organic and nonorganic farms: applied in couple they promoted the accumulation of monosaccharides, ascorbic acid, carotenoids, phenols, and increased antioxidant activity. Quantitative nitrate analysis regardless of the biostimulant used revealed about twofold lower nitrate content of carrots from organic than nonorganic farms, and probiotics did not show a significant effect on nitrate accumulation. Finally, ProbioHumus and NaturGel were effective at low doses. The use of microbial biostimulants can be recommended as an element of cultivation for creating ecologically friendly technologies.

scholarly journals Effect of Yield and Quality of Erythropalum Scandens Bl. Under Different Dosage and Proportion of Chicken Manure and Cow Manure

2021 ◽  
Author(s):  
Dao-Cheng Ma ◽  
Xiang Tian ◽  
Pinxiang Guo ◽  
Ling-hui Wang ◽  
Wei-Chao Teng
Keyword(s):  
Acid Content ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Nitrate Content ◽  
Cow Manure ◽  
Average Yield ◽  
Edible Part ◽  
Yield And Quality

Abstract Erythropalum scandens Bl. is a kind of leafy vegetable which has high edible and medicinal value in Southern China. However, it has been treated as a kind of wild vegetable for a long time and there is still little researches on its yield and quality after fertilization. This study aimed to assess the effect of yield and quality of E. scandens after using two kinds of organic fertilizer: chicken manure and cow manure, which find out the responses of the edible part in E. scandens after using different dosage and proportion of chicken manure and cow manure and find out a best fertilization treatment. We investigated the yield and quality of the edible part in biennial E. scandens including average yield, titratable acid content, sugar acid ratio, crude protein content, ascorbic acid content, tea polyphenols content, nitrate content, general flavone content and macronutrient content (including total nitrogen, phosphorus and potassium) after using different dosage and proportion of chicken manure and cow manure, which to find out a best fertilization treatment via the yield, nutrient and taste. Compared with CK group, proper fertilization can increase the average yield of E. scandens and promote its growth and macronutrient accumulation at the same time. The content of all kinds of nutrients are higher than CK group after using organic fertilizers and they can be accumulated during the process of fertilization. The E. scandens seedlings had the highest yield and best quality under T6 treatment (0.8kg/plant chicken manure+1.2 kg/plant cow manure). However, nitrate can be accumulated in the edible part of E. scandens during the process of fertilization. Compared with CK group, organic fertilization can increase the yield and quality of E. scandens, but excessive fertilization can lead to a significant increase in nitrate levels in plants, even exceeding food safety standards. The nitrate level of E. scandens is a little bit high in this research and better solution is still needed to ensure the quality and food security of E. scandens in the near future.

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