scholarly journals Influence of Soil and Nutrient Management on Growth and Quality of Collards

2005 ◽  
Vol 15 (1) ◽  
pp. 163-168
Author(s):  
R.S. Mylavarapu ◽  
J.P. Smith ◽  
F. Munoz
Keyword(s):  
High Temperature ◽  
Nutrient Management ◽  
Sandy Soils ◽  
Nutrient Content ◽  
Conventional Tillage ◽  
Nutrient Supply ◽  
Harvest Time ◽  
Regression Analyses ◽  
Factors Affecting

High temperature and humidity during summer months in the southeastern U.S., in addition to crop nutritional status, are suggested to be the primary reasons for tipburn incidence in collards (Brassica oleracea Acephala Group) adversely affecting their marketability. A 2-year study was conducted to evaluate the efficiency of grower's standard practice (GSP), GSP + gypsum, and a programmed-release fertilizer (PRF) under conventional and deep tillage on collard yield and tipburn incidence. Subsoiling significantly increased yield over conventional tillage. Nutrient supply through PRF did not increase the yields; however, it resulted in either similar or higher levels of macro- and micronutrient levels both in soils and collard tissue compared to GSP and GSP + gypsum treatments. The occurrence of tipburn in collards is dependent on several factors, including nutritional, physiological, and environmental stresses. Regression analyses of tipburn ratings at harvest time and the soil and tissue nutrient content suggested that 47% of the variation could be attributed to soil and tissue levels of sulfur (S), zinc (Zn), and phosphorus (P). It is important, therefore, to ensure an optimum supply of nutrients to the plants to maintain the quality of the yields. The advantage of PRF in sandy soils, and identification of other factors affecting the tipburn in collards should be further investigated.

Preparation of the surface of workpieces for a heat-shielding coating

2021 ◽  
pp. 377-381
Author(s):  
N.N. Nenakhov ◽  
V.P. Smolentsev ◽  
V.L. Mozgalin ◽  
A.I. Portnykh
Keyword(s):  
High Temperature ◽  
Contact Zone ◽  
Protective Coatings ◽  
Fuel Combustion ◽  
Factors Affecting ◽  
Metal Products ◽  
Heat Shielding ◽  
Hot Products

The issues of preparation the surfaces of metal products for the application of high-temperature protective coatings from mineral-ceramic granules with a conductive binder are considered. The influence of contamination in the contact zone of the preparation with the coating on the quality of the product is described and methids for eliminating the factors affecting the decrease in the resistance of the applied layer under the influence of the torch of hot products of fuel combustion are show.

scholarly journals Study of Nutrition Content Food Drop in Deer in PT. Gunung Madu Plantations

2018 ◽  
Vol 6 (1) ◽  
pp. 32
Author(s):  
Jumayanti Boru Hombing ◽  
Bainah Sari Dewi ◽  
Syahrio Tantalo ◽  
Sugeng Prayitno Harianto
Keyword(s):  
Nutritional Value ◽  
Nutrient Content ◽  
High Water ◽  
Proximate Analysis ◽  
High Water Content ◽  
Factors Affecting ◽  
Deer Population ◽  
In Captivity ◽  
Good Nutrition

Increasing the number of individual deer in captivity indicates an increase in the deer population. One of the factors affecting the increase in the deer population is a drop in the quality of feed and nutritional value adequate for deer. Therefore it is necessary to investigate the type of feed and feed nutrient content in captive deer drop in PT Gunung Madu Plantations (GMP). Nutrient content of feed drop in deer obtained through the proximate analysis by taking a sample of 100 grams per sample feed. This type of feed given drop in manager consists of the main feed forage consisting of grass and leaves, in the form of rice bran concentrate feed, and feed the tubers were given every month. Based on proximate analysis that has been made known that the feed drop-in provided by the organizer captivity contains good nutrition, as seen in the high water content, extract ingredients without nitrogen (BETN) high, protein and fibers that do not differ greatly in value and fat content is not excessive. Keywords: Drop in Feed Nutrition, Feeding Deer, Captive Deer PT. GMP

Effects of harvest time and nutrient supply on fuel quality of Paludiculture plant species

2020 ◽  
Author(s):  
Claudia Oehmke ◽  
Franziska Eller ◽  
Linjing Ren ◽  
Wenyoung Guo ◽  
Nora Köhn ◽  
...  
Keyword(s):  
Plant Species ◽  
High Energy ◽  
Nutrient Supply ◽  
Grass Species ◽  
Fuel Quality ◽  
Harvest Time ◽  
Herbaceous Biomass ◽  
Nutrient Levels ◽  
Solid Biofuel

<p>Paludiculture („palus" lat. swamp) is the sustainable use of wet and rewetted peatlands which maintains the peatbody for carbon storage. Worldwide, drained peatlands cover only 0.3 percent of the land area but emit almost 5 percent of all anthropogenic greenhouse gas emissions. Rewetting of drained peatlands is therefore an urgent need  for climate change mitigation. The production of biomass for the use as solid biofuel for combustion, is one promising utilisation option.</p><p>Compared to wood, herbaceous biomass (e.g. grasses and reeds) contains higher concentrations of critical elements (N, S, Cl or K) that leads to higher emissions (SO<sub>x</sub>, NO<sub>x</sub>) or to the destruction of boilers or parts of it (corrosion). Late harvest in winter is often recommended for grass species to improve fuel quality and also storage stability. Nutrients and other elements will be reduced in plant tissues by leaching or translocation processes during plant die-off. Water content that is crucial for storage will also decrease. Combustion quality of herbaceous biomass depends on plant species, site specific parameters and harvest time. There are only a few studies for the suitability of Paludiculture plants for combustion, and little is known about the effects of nutrient supply.</p><p>In our study we focused on fuel quality parameters of <em>Typha latifolia</em>, <em>Typha angustifolia</em>, <em>Arundo donax</em>, and four European clones of <em>Phragmites australis</em> (Denmark, Netherlands, Romania, and Italy) grown in mesocosms on three different nutrient levels (0, 75 and 500 kg N/ha/a). We analysed the total concentrations of C, H, N, O, S, Cl, K, Na, P, Ca, Si and ash content as well as higher heating value in the above ground biomass.</p><p>Winter harvested <em>P. australis</em> (Italy), <em>T. angustifolia</em> as well as <em>T. latifolia</em> could meet the required treasure values for N concentrations at all nutrient levels. S concentrations were only for <em>T. angustifolia</em> and <em>T. latifolia</em> below the treasure values at summer harvest, but for all plant species at winter harvest. Ash contents were very high for all plant species in summer (>6 %) – except for <em>A. donax</em> and <em>P. australis</em> (Netherlands). Effects of nutrient levels on biofuel quality were stronger in summer than in winter.</p><p>A comparison of plant species, harvest time (summer and winter) and nutrient levels will be used to decide for an optimal cultivation type and management strategy for Paludiculture purposes. The main aim is to provide biomass for combustion with high energy yields per hectare combined with the highest possible fuel quality.</p>

Some Factors Affecting the Interpretation of the Plasticity Retention Index—P.R.I.

1969 ◽  
Vol 42 (2) ◽  
pp. 381-391 ◽  
Author(s):  
M. G. Smith
Keyword(s):  
High Temperature ◽  
Natural Rubber ◽  
Retention Index ◽  
Dynamic Properties ◽  
Factors Affecting

Abstract The implications of the PRI test are examined, in order to demonstrate how the values may be interpreted by the rubber goods manufacturer. It is shown that consistency of PRI is desirable, to enable product uniformity through control of processing, in particular high temperature mastication. It is demonstrated that PRI cannot be used to assess the quality of natural rubber, in terms of dynamic properties and vulcanizate aging.

scholarly journals Characterisation of Chamaecytisus tagasaste, Moringa oleifera and Vachellia karroo Vermicomposts and Their Potential to Improve Soil Fertility

2020 ◽  
Vol 12 (22) ◽  
pp. 9305
Author(s):  
Mahlare Mapula Mokgophi ◽  
Alen Manyevere ◽  
Kingsley Kwabena Ayisi ◽  
Lawrence Munjonji
Keyword(s):  
Soil Fertility ◽  
Eisenia Fetida ◽  
Crop Production ◽  
Moringa Oleifera ◽  
Smallholder Farmers ◽  
Nutrient Content ◽  
Nutrient Supply ◽  
The Impact ◽  
Poor Soil

Poor soil fertility and land degradation limit crop production among smallholder farmers. The practice of agroforestry with leguminous trees has proven to be sustainable as it bolsters nutrient supply through nitrogen fixation and nutrient cycling. The beneficiation of agroforestry species could add even more value by using tree based waste materials as mulch or vermicomposting. A study was conducted to investigate the impact of vermicomposting on chemical and biological characteristics of three agroforestry species; Chamaecytisus tagasaste, Vachellia karroo and Moringa oleifera. Eisenia fetida earthworms were added to the leaves and small twigs of the three trees in worm composting bins. The worms were allowed to feed on the feedstocks for six weeks under laboratory conditions. The results showed that vermicomposting significantly enhanced macronutrient nutrient content in all the three feedstocks. The findings also showed that the quality of the vermicompost depends on the feedstock type. M. oleifera had the best quality vermicomposts with a significantly higher composition of macronutrients which ranged between 50 and 170% higher for Ca, K, Mg and P. Vermicomposting increased Mo while other micronutrients such as Zn, Mn, Fe and B significantly decreased with vermicomposting time. In addition, vermicomposting increased E. fetida reproduction with more than a 450% increase in earthworm numbers in all three feedstocks. In conclusion, vermicompost have potential to be used to improve soil fertility and thus reduce the use of synthetic fertilisers in crop production.

Customer’s satisfaction on service quality at Vietnam Technological and Commercial Joint Stock Bank – An Giang Branch

2020 ◽  
Vol 4 (3) ◽  
pp. First
Author(s):  
Tran Minh Hieu ◽  
Nguyen Duong Ngoc Mai Chi
Keyword(s):  
Customer Satisfaction ◽  
Service Quality ◽  
Test Method ◽  
Quality Of Services ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Alpha Reliability ◽  
Survey Results ◽  
Development Orientation

This study applied SERVQUAL scale of Parasuraman et al to measure factors affecting customer satisfaction on service quality at Vietnam Technological and Commercial Joint Stock Bank - An Giang Branch (Techcombank An Giang). The study was conducted to survey 207 customers who have been using the service at Techcombank An Giang. The survey results were analyzed by the Cronbach's Alpha reliability test method, then used Exploratory factor analysis (EFA) to verify and evaluate the scale of service quality. The results of the regression analysis show that customer's satisfaction about service quality at Techcombank An Giang includes four factors: The factor with the highest level is the Empathy with Beta = 0.253, the second of factor is the Responsibility with Beta = 0.248, ranked third in the influence level is the Tangible with Beta = 0.235, and the lowest impact level is the Reliability with Beta = 0.144. The research also uses statistical methods to describe and test the differences of demographic factors with customer's satisfactionon service quality.The analysis results show that there is no difference between customer's satisfaction on service quality and factors such as gender, age, income, number of transaction banks, regular transaction banks, and time to use the service at Techcombank An Giang. Through the research results, the author would like to propose some ideas to improve the quality of services, thereby attracting new customers and importantly, keeping traditional customers because the development orientation of Techcombank is to take care of old customers to cross sell other products of the bank. The Stud results offer a basis for the branch to identify the factors influencing customer satisfaction on their service quality, thereby having an appropriate strategy to improve customer satisfaction.

Food procurement in English-language Canadian public schools: Opportunities and challenges

2019 ◽  
Vol 6 (1) ◽  
pp. 75-99
Author(s):  
Shawna Holmes
Keyword(s):  
Public Schools ◽  
Food Environment ◽  
Nutritional Quality ◽  
English Language ◽  
Nutrient Content ◽  
Food Environments ◽  
School Food ◽  
Provincial Level ◽  
School Food Environment

This paper examines the changes to procurement for school food environments in Canada as a response to changes to nutrition regulations at the provincial level. Interviews with those working in school food environments across Canada revealed how changes to the nutrition requirements of foods and beverages sold in schools presented opportunities to not only improve the nutrient content of the items made available in school food environments, but also to include local producers and/or school gardens in procuring for the school food environment. At the same time, some schools struggle to procure nutritionally compliant foods due to increased costs associated with transporting produce to rural, remote, or northern communities as well as logistic difficulties like spoilage. Although the nutrition regulations have facilitated improvements to food environments in some schools, others require more support to improve the overall nutritional quality of the foods and beverages available to students at school.

INFLUENCE OF FORCED CONVECTION IN LIQUID INSIDE THE TIN ON DURATION OF STERILIZATION IN THE COURSE OF FISH PROCESSING

2017 ◽  
pp. 137-144
Author(s):  
Gennadiy Valentinovich Alexeev ◽  
Elena Igorevna Verboloz
Keyword(s):  
High Temperature ◽  
Liquid Phase ◽  
Forced Convection ◽  
Thermal Process ◽  
Processing Time ◽  
Fish Processing ◽  
Study Results ◽  
Equipment Modernization ◽  
Bottom To Top

The article focuses on the process of intensive mixing of liquid phase in the tin during high-temperature sterilization, i.e. sterilization when temperature of the heat carrier reaches 150-160°C. It has been stated that for intensification of the thermal process during sterilization of tinned fish with liquid filling it is preferable to turn a tin from bottom to top. This operation helps to increase the driving power of the process and to shorten warming time. Besides, high-temperature sterilization carried out according to experimental modes, where the number of tin turnovers is calculated, greatly shortens processing time and improves quality of the product. In this case there is no superheating, all tins are evenly heated. The study results will contribute to equipment modernization and to preserving valuable food qualities.

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

2009 ◽  
Vol 70 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Marek Gajewski ◽  
Zenon Węglarz ◽  
Anna Sereda ◽  
Marta Bajer ◽  
Agnieszka Kuczkowska ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Carrot Juice ◽  
Harvest Time ◽  
Experimental Station ◽  
Colour Parameters ◽  
Solids Content ◽  
Nitrates Content

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest TermIn 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F1and Trafford F1cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha-1and in two terms — before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO3) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L*a*b*system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO3concentration was found in carrots fertilized with 120 kg·ha-1of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L*, a*and b*values were observed at the last term of harvest.

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