scholarly journals About the influence of solutions of fulvic acids from sapropel on lettuce plants in various types of its processing

2021 ◽  
Vol 209 (06) ◽  
pp. 22-33
Author(s):  
Ol'ga Udalova ◽  
Galina Mirskaya ◽  
Pavel Kononchuk ◽  
Gayane Panova
Keyword(s):  
Production Process ◽  
Fulvic Acid ◽  
Nutrient Solution ◽  
Physiological State ◽  
Fulvic Acids ◽  
Root Medium ◽  
Controlled Conditions ◽  
State Production ◽  
Root Treatment

Abstract. The purpose of our research was to assess the influence of treatment with fulvic acid (FA) solutions (obtained from sapropel) on the physiological state, production process, and quality of salad crops under intensive controlled conditions. Research method. Treatment of plants with solutions of FA in various concentrations was carried out under controlled conditions using three different methods: soaking cress seeds (0.03-300mg/l); non-root treatment of vegetative plants (90–150 mg/l), when growing lettuce by a low – volume method with drip fertigation with Knop nutrient solution; adding a nutrient solution to the root medium (0.03-150 mg/l), when growing lettuce under nutrient film technique. Results. The most pronounced stimulating effect on plant growth was obtained after seeds treatment with FA solutions in concentrations of 0.3-150.0 mg/l, during non-root treatment of lettuce in concentrations of 0.3 and 150.0 mg/l, and when FA was introduced into the root medium at a concentration of 90.0 mg/l. It was suggested the lettuce growth under the action of FA was conditioned by enhancing plants metabolism and increased entry of nutrients to the aboveground organs of plants (during non – root processing)- and by nutrient uptake increasingas well as activation of the synthesis of photosynthetic pigments-chlorophylls and carotenoids (when a nutrient solution was add to the root medium. Scientific innovation. Under controlled conditions, a comprehensive assessment of the effect of FA solutions obtained from sapropel on the physiological state, production process, and quality of salad crops was carried out. The concentrations of fulvic acid solutions that had the most pronounced stimulating effect on the growth and development of lettuce plants in various types of treatment were determined. The specificity of the responses of lettuce plants to various types of treatment with FA solutions was revealed.

Bioavailability of dissolved organic carbon and fulvic acid from an Australian floodplain river and billabong

2007 ◽  
Vol 58 (2) ◽  
pp. 222 ◽  
Author(s):  
Suzanne McDonald ◽  
Jennifer M. Pringle ◽  
Paul D. Prenzler ◽  
Andrea G. Bishop ◽  
Kevin Robards
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Fulvic Acid ◽  
Heterotrophic Bacteria ◽  
Fulvic Acids ◽  
Lag Phase ◽  
Floodplain Ecosystems ◽  
Vital Resource ◽  
Number Of Bacteria

Dissolved organic carbon (DOC) is a vital resource for heterotrophic bacteria in aquatic ecosystems. The bioavailability of fulvic acid, which comprises the majority of aquatic DOC, is not well understood. The present study examined the bioavailability of bulk DOC and fulvic acid from two contrasting but inter-related water bodies: the Murrumbidgee River and adjacent Berry Jerry Lagoon. Bacteria utilised fulvic acids; however, bulk DOC was more bioavailable. Bacteria were able to utilise Murrumbidgee River DOC and fulvic acid more readily than Berry Jerry Lagoon DOC and fulvic acid, suggesting that the quality of carbon may be an important factor to consider when evaluating lateral exchange of nutrients between the main channel and floodplain. Chemical characteristics of fulvic acids appeared to explain some of the variation in fulvic acid bioavailability. The higher the molecular weight and complexity of the fulvic acid, the longer it took for bacteria to utilise the substrate (lag phase), but the larger the number of bacteria that grew on the substrate. The present study calls attention to the need for further multidisciplinary studies to address the quality of carbon in riverine-floodplain ecosystems.

Evaluation of the Properties of Humus Liquid of Earthworm Eisenia Foetida Obtained from Different Rachis

2017 ◽  
Vol 3 (02) ◽  
Author(s):  
Ramiro Remigio Gaibor Fernández ◽  
Abraham Adalberto Bayas Zamora ◽  
Galo Israel Muñoz Sánchez ◽  
Cristhian Adrián Rivas Santacruz
Keyword(s):  
Plant Growth ◽  
Fulvic Acids ◽  
Cattle Manure ◽  
Eisenia Foetida ◽  
Humic And Fulvic Acids ◽  
Livestock Manure ◽  
A Value ◽  
The One ◽  
Liquid Slurry

The objective of the present investigation was to evaluate the physical characteristics of the vermicompost and the quality of the purine of the red Californian (Eisenia foetida) using different substrates of feed for these worms. For this purpose, nine treatments were studied: 75% African palm rachis + 25% cattle manure, 50% African palm rachis + 50% cattle manure, 25% African palm rachis + 75% livestock manure, 50% manure of cattle, 50% of manure of cattle, 25% of manure of cattle, 50% of manure of cattle, 50% of manure of cattle, 50% of rach of coconut + 50% of manure of Livestock, 25% coccus rachis + 75% livestock manure. The substrate made up of 50% of rachis of coconut and 50% of livestock manure can be used in nurseries or nurseries for being the one that registered a value of pH 7.3 plus the closest to the neutral compared to the others, besides this (75% of oil palm rachis and 25% of cattle manure) showed a higher content of humic and fulvic acids (0.87 and 0.45 p / p, respectively), compounds that are important for agriculture by stimulating plant growth, in addition to this reflection 0.06% sulfur content, 4.0 ppm boron, 7.0 ppm copper, 47.5 ppm iron, 6.0 ppm manganese, with a presence of microorganisms of the species Trichoderma, Penicillium, Cladosporium sp. in amounts of 1.91x105 UFC / ml, however in this substrate was obtained between 13.3 and 43.5% less liquid slurry in Comparison with other treatments.

Statistical Management of Food Production Processes

2020 ◽  
pp. 30-35
Author(s):  
N.A. Jurk ◽  
Keyword(s):  
Production Process ◽  
Control Chart ◽  
Food Production ◽  
Time Interval ◽  
Bakery Products ◽  
Shewhart Control ◽  
Manufactured Products ◽  
Mnemonic Technique ◽  
The Stability

The article presents scientific research in the field of statistical controllability of the food production process using the example of bakery products for a certain time interval using statistical methods of quality management. During quality control of finished products, defects in bakery products were identified, while the initial data were recorded in the developed form of a checklist for registering defects. It has been established that the most common defect is packaging leakage. For the subsequent statistical assessment of the stability of the production process and further analysis of the causes of the identified defect, a Shewhart control chart (p-card by an alternative feature) was used, which allows you to control the quality of manufactured products by the number of defects detected. Analyzing the control chart, it was concluded that studied process is conditionally stable, and the emerging defects are random. At the last stage of the research, the Ishikawa causal diagram was used, developed using the 6M mnemonic technique, in order to identify the most significant causes that affect the occurrence of the considered defect in bakery products. A more detailed study will allow the enterprise to produce food products that meet the established requirements.

Typical errors and violations of biotechnics of artificial breeding of pacific salmon

2020 ◽  
pp. 13-23
Author(s):  
Ekaterina Grinberg
Keyword(s):  
Production Process ◽  
Preventive Measures ◽  
Pacific Salmon ◽  
Fish Farming ◽  
Important Condition ◽  
The Third ◽  
Fish Breeding ◽  
Artificial Breeding ◽  
Strict Compliance

In two parts of the article, more than 70 errors and violations of the Biotechnics of artificial breeding of Pacific salmon in salmon hatcheries are collected and summarized, which lead to an immediate or delayed deterioration of the quality of reared fry and a decrease in their survival rate. Deviations from the biological basis of fish farming are shown and possible consequences of such errors or violations are predicted. In the first part of the article (#7,2020) there were General errors (throughout the entire fish-breeding process), as well as violations of Biotechnics during the work with producers, collecting eggs and preparing them for incubation, in the second part-violations of Biotechnics during the incubation of eggs, holding pre-larvae, rearing and release of young. Their correction, prevention or minimization of consequences will significantly improve the quality of sexual products and offspring from producers, increase the linear and weight gain of juveniles during rearing, improve the coefficient of feed payment, reduce the time of rearing, improve the epizootic situation by developing immunity in fry and mobilizing other protective reactions of their body, significantly reduce waste at all stages of the production process, increasing survival by 10–15%. In conclusion, it is noted that the first and most important condition for an efficient salmon hatchery is the creation of optimal environmental conditions at each stage of the production process. The second condition is strict compliance with the Biotechnics of artificial salmon breeding and the complex of veterinary and sanitary, fish-breeding and meliorative and therapeutic and preventive measures. The third is the availability of competent specialists who regularly improve their skills in accredited Universities to implement, control and manage the first two conditions.

scholarly journals Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dalila Lopes da Silva ◽  
Renato de Mello Prado ◽  
Luis Felipe Lata Tenesaca ◽  
José Lucas Farias da Silva ◽  
Ben-Hur Mattiuz
Keyword(s):  
Ascorbic Acid ◽  
Nutrient Solution ◽  
Acid Content ◽  
Dry Matter ◽  
Ascorbic Acid Content ◽  
Calcium Deficiency ◽  
Ca Deficiency ◽  
Leaf Water Loss ◽  
Nutrient Solutions

AbstractCalcium (Ca) deficiency in cabbage plants induces oxidative damage, hampering growth and decreasing quality, however, it is hypothesized that silicon (Si) added to the nutrient solution may alleviate crop losses. Therefore, this study aims at evaluating whether silicon supplied in the nutrient solution reduces, in fact, the calcium deficiency effects on cabbage plants. In a greenhouse, cabbage plants were grown using nutrient solutions with Ca sufficiency and Ca deficiency (5 mM) without and with added silicon (2.5 mM), arranged as a 2 × 2 factorial in randomized blocks, with five replications. At 91 days after transplanting, the plants were harvested for biological evaluations. In the treatment without added Si, Ca deficiency promoted oxidative stress, low antioxidant content, decreased dry matter, and lower quality leaf. On the other hand, added Si attenuated Ca deficiency in cabbage by decreasing cell extravasation while increasing both ascorbic acid content and fresh and dry matter, providing firmer leaves due to diminished leaf water loss after harvesting. We highlighted the agronomic importance of Si added to the nutrient solution, especially in crops at risk of Ca deficiency.

scholarly journals Disentangling Individual Phases in the Hunted vs. Farmed Meat Supply Chain: Exploring Hunters’ Perceptions in Italy

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 174
Author(s):  
Maria Elena Marescotti ◽  
Eugenio Demartini ◽  
Michael Gibbert ◽  
Roberto Viganò ◽  
Anna Gaviglio
Keyword(s):  
Supply Chain ◽  
Production Process ◽  
Emerging Market ◽  
Final Phase ◽  
Game Meat ◽  
Wild Game ◽  
Wild Boar Meat ◽  
Training Activities ◽  
Final Consumer

The growing body of literature concerning the hunted wild game meat (HWGM) supply chain is mainly focused on the final consumer, while little is known about upstream production processes. Even though the hunter plays a central role here, it is not well understood how hunters themselves perceive their role in the various phases of the production process. The present study explores Italian hunters’ perception of the HWGM supply chain and compares it to their perception towards the conventional farmed meat supply chain. We distinguish several phases of this production process and find that the final phase related to on-site game dressing is considered problematic, perhaps because hunters perceive themselves as less skilled than professional butchers. The results, in fact, show that hunters prefer hunted products over farmed meat, but that they consider hunted wild boar meat less safe compared to farmed pork. Findings from this study provide a rare glimpse from the inside of the supply chain and reveals the needs for a broad risk assessment analysis on the Italian game meat supply chain. Considering the development of the Italian emerging market of the HWGM, our results also highlight the relevance of training activities on hunters in order to increase the safety and quality of the final product.

scholarly journals Content of inorganic solutes in lettuce grown with brackish water in different hydroponic systems

2017 ◽  
Vol 21 (3) ◽  
pp. 150-155 ◽  
Author(s):  
Alide M. W. Cova ◽  
Fabio T. O. de Freitas ◽  
Paula C. Viana ◽  
Maria R. S. Rafael ◽  
André D. de Azevedo Neto ◽  
...  
Keyword(s):  
Fresh Water ◽  
Nutrient Solution ◽  
Brackish Water ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Matter Production ◽  
Water Plant ◽  
Hydroponic Systems ◽  
Inorganic Solutes

ABSTRACT The objective of this study was to evaluate the growth and accumulation of ions in lettuce grown in different hydroponic systems and recirculation frequencies. The experimental design was randomized blocks with 8 treatments and 4 replicates. The evaluated hydroponic systems were Nutrient Flow Technique (NFT) and an adapted Deep Flow Technique (DFT), the latter with recirculation frequencies of 0.25, 2 and 4 h. Both systems used fresh water and brackish water. Plant growth, accumulation of inorganic solutes (Na+, K+, Cl- and NO3-) and the correlation between dry matter production and Na+/K+ and Cl-/NO3- were evaluated. The salinity of the water used to prepare the nutrient solution caused decrease in growth and K+ and NO3- levels, and increased contents of Na+ and Cl- in the plants. When using fresh water the highest dry matter production was obtained in the NFT system. In case of brackish water the adapted DFT system increased the production, in relation to NFT system (at same recirculation frequency: 0.25 h). It was found that the choice of the type of hydroponic system and recirculation interval for the cultivation of lettuce depends on the quality of the water used to prepare the nutrient solution.

scholarly journals Quality of Water Production Process Using Mixed Multivariate EWMA-CUSUM (MEC) Control Chart

2021 ◽  
Vol 1863 (1) ◽  
pp. 012037
Author(s):  
N H D Asmara ◽  
Wibawati ◽  
M Ahsan ◽  
M Mashuri ◽  
H Khusna
Keyword(s):  
Production Process ◽  
Control Chart ◽  
Water Production ◽  
Quality Of Water

scholarly journals ESTIMATION OF STRUCTURAL SIMILARITY FOR CONTROL OF MICROELECTRONIC PRODUCTS

2019 ◽  
Vol 1 (7) ◽  
pp. 14-18
Author(s):  
Yu. A. Gusman ◽  
Yu. A. Pichugin ◽  
A. O. Smirnov
Keyword(s):  
Production Process ◽  
Technological Process ◽  
Good Reason ◽  
Structural Similarity ◽  
Fixed Number ◽  
Crystal Plate ◽  
Technological Scheme ◽  
Real Sample ◽  
Numerical Example

In this paper we consider the technological process of manufacturing micromechanical gyroscopes, the output of which is divided into cells of the crystal plate and each cell contains a fixed number of product elements. The estimation of structural similarity for measurements of technical characteristics of various devices is offered. A relatively large value of structural similarity assessment means that there is a dependence of the quality of the manufactured devices on the position on the crystal plate. This gives a good reason for further work to improve the quality of the process or to change the technological scheme as a whole. The article considers a numerical example based on a real sample of microelectronic products. The proposed method can be used both in the process of adjustment of the production process and in the rejection of products, when further configuration of the equipment is no longer possible.

scholarly journals Batik stamp canting made of waste paper material as a frugal innovation in batik

2021 ◽  
Vol 905 (1) ◽  
pp. 012125
Author(s):  
S R Hidayat ◽  
T B Affanti ◽  
A I Josef ◽  
D Nurcahyanti
Keyword(s):  
Production Process ◽  
Case Studies ◽  
Qualitative Approach ◽  
Data Sources ◽  
Waste Paper ◽  
High Price ◽  
Frugal Innovation ◽  
Value Of Knowledge

Abstract This article discusses the innovation of batik stamp canting equipment using waste paper material. The first focus is on the emergence and the background of the innovation of batik stamp canting made of waste paper material. The second is on the elaboration of concept of stamp batik canting innovation made of waste paper material. The method applied in this study was qualitative approach with case studies by employing informants’ data sources, artifacts, events and documents. The results indicate that the innovation of stamp canting using paper material has occurred since 2014, and it began to be widely used in batik production process in 2016. The background of stamp canting innovation made of waste paper was triggered by the high price of stamp canting from copper which is commonly used in the production process of stamped batik. The concept applied to develop this stamp canting is frugal innovation. The value of knowledge gained is that innovation is not always carried out to improve the quality of processes or products. Innovation is more significantly needed to solve the problems related to the context.

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