scholarly journals Relationship between assimilable-nutrient content and physicochemical properties of topsoil

2017 ◽  
Vol 31 (4) ◽  
pp. 551-562 ◽  
Author(s):  
Przemysław Tkaczyk ◽  
Wiesław Bednarek ◽  
Sławomir Dresler ◽  
Jaromir Krzyszczak ◽  
Piotr Baranowski ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Humus Content ◽  
Zinc Content ◽  
Nutrient Content ◽  
Soil Samples ◽  
Environmental Study ◽  
Soil Reaction ◽  
Positive Correlation ◽  
Colloidal Clay ◽  
Iron And Zinc

Abstract In the years 2008-2011, an environmental study was conducted for Polish soils, focusing on the south-eastern Poland soils, as they exhibit significant acidification. This study aimed at assessing the current pHKCl and the supply of basic macro- (P, K, Mg and S-SO4) and microelements (B, Cu, Fe, Mn and Zn) in the collected soil samples, and also at determining their relationship with the soil agronomic category, humus content and pH class. Soil reaction and humus and macronutrient content were positively correlated with the amount of colloidal clay and particles < 0.02 mm. In the majority of cases, the macro-element content in the soil was positively correlated with soil pH and humus content. As for microelements, a usually significant and positive correlation was found between the soil agronomic category and the content of manganese, iron and zinc, whereas for the content of boron and copper, no such relationship was observed. A significant and positive correlation between soil reaction and the content of manganese, iron and boron was also found. Such correlations were not observed in relation to copper and zinc content. Statistical analysis indicated that the content of boron and manganese depended to the greatest extent on the investigated physicochemical properties.

scholarly journals Chemical Properties of Forest Soils from Romania West Plain

2019 ◽  
Vol 70 (7) ◽  
pp. 2371-2374 ◽  
Author(s):  
Lucian Dinca ◽  
Ion Chisalita ◽  
Ilie-Cosmin Cantar
Keyword(s):  
Soil Analysis ◽  
Humus Content ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Soil Samples ◽  
Point Of View ◽  
Soil Reaction ◽  
Management Plans ◽  
Cationic Exchange ◽  
Forest District

The present paper characterizes the soils from Romania�s West Plain from a chemical property point of view, based on data from forest management plans. As such, for each forest district, soil samples from characteristic forest areas are gathered once at ten years and then analyzed. In this manner, soil reaction, base saturation degree, total cationic exchange capacity, humus content and total nitrogen where analyzed and compared with results of soil analysis from other Romanian areas.

Nutritional Profile of Chekurmanis (Sauropus androgynus), A Less Explored Green Leafy Vegetable

2017 ◽  
Vol 54 (3) ◽  
pp. 243
Author(s):  
Kalpana Platel ◽  
Krishnapura Srinivasan
Keyword(s):  
Zinc Content ◽  
Nutrient Content ◽  
Carotene Content ◽  
Nutritional Profile ◽  
Mature Leaves ◽  
Perennial Shrub ◽  
Iron And Zinc ◽  
The Rich ◽  
Rich Content ◽  
Β Carotene

Chekurmanis (Sauropus androgynus) belonging to Euphorbiaceae, is a perennial shrub, growing wildly in Southeast Asia. The leaves of chekurmanis are highly nutritious, being a very rich source of micronutrients and protein. In this study, chekurmanis leaves were evaluated for protein and micronutrient content at different stages of maturity. Maturity of the leaves did not alter the rich content of protein which remained around 22.0 g/100 g. Total dietary fibre content of the leaves ranged between 34 and 36% at different stages of maturity. Fully matured leaves contained a significantly higher amount of calcium, as compared to the tender leaves. The iron content of these leaves ranged from 3.89 to 4.50 mg /100 g, while the zinc content of the same was between 1.26 and 1.48 mg/100 g. The bioaccessibility of iron and zinc was significantly higher in the tender leaves. The tender and partially mature leaves of chekurmanis contained 74 and 69 mg/100 g of niacin, respectively. The β-carotene content of the leaves ranged from 7400 to 9250 μg/100 g, while that of vitamin E ranged between 17.6 to 15.6 mg/100 g. Chekurmanis leaves contain an alkaloid, the content of which was significantly higher in mature leaves (1740 mg/ 100 g) as compared to tender leaves (1439 mg/100 g). The alkaloid content of chekurmanis leaves was significantly reduced upon pressure cooking. This is the first report on the nutrient content of chekurmanis leaves at different stages of maturity, as also on the bioaccessibility of minerals.

scholarly journals Nutrient Content for Newly Improved Breeding Rice Lines from Parentage of the Kavuni and CO 50

2021 ◽  
pp. 41-49
Author(s):  
T. Vasantha Theiventhiran ◽  
S. Amutha ◽  
G. Hemalatha ◽  
S. Vellaikumar ◽  
T. Umamaheswari
Keyword(s):  
Physical Properties ◽  
Zinc Content ◽  
Calcium Content ◽  
Nutrient Content ◽  
Rice Varieties ◽  
Breeding Lines ◽  
Breeding Technique ◽  
Significant Difference ◽  
Iron And Zinc ◽  
Calcium Iron

The objective of the study was determining the physical properties and minerals composition in the twenty three breeding lines and two parent rice varieties. Physical properties found that no significant difference in terms of shape and size of the grain. The calcium, iron and zinc content of rice samples in the ranged from 7.56 to12.72 mg/100g, 0.73 to 2 mg/100g and 2.29 to 3.39 mg/100g, respectively. Results showed that the cultures 144-5 (12.72 mg/100g)>155-3(12.62 mg/100g)>144-2(12.61 mg/100g) =148-2 (12.61 mg/100g) contained higher levels of calcium content. Among the rice lines accessions, the samples: 144-2 (2.04 mg/100g)>32-2 (2 mg/100g)>145-2 (1.67 mg/100g)>145-3 (1.57mg/100g) had higher contents of iron. The zinc content of rice lines ranked in the following decreasing order; 144, 144-1,144-2, 144-3, 145-3, 145-6, 143-1,148-2,271-2. From the twenty three rice lines, some of the rice lines contained more minerals than of parent kavuni. The finding indicated that the cross breeding technique may increases not only the yield and also nutrient content of rice.

scholarly journals Functional diversity of soil microorganisms in the conditions of an ecological farming system

2019 ◽  
Vol 46 (2) ◽  
pp. 146-152
Author(s):  
Danica Fazekašová ◽  
Juraj Fazekaš
Keyword(s):  
Heavy Metals ◽  
Physicochemical Properties ◽  
Physical Properties ◽  
Functional Diversity ◽  
Farming System ◽  
Soil Physical Properties ◽  
Soil Samples ◽  
Soil Reaction ◽  
Limit Values ◽  
Ecological Farming

AbstractIn the current study, we investigate the relationships among the soil functional diversity, physicochemical properties and heavy metals presence in an ecological farming system. The soil samples were collected from permanent research sites, from A soil horizons, at a depth from 0.05 m to 0.15 m, in June 2018. In fresh soil samples, we evaluated the metabolic profiles of their microbial communities, using Biolog® Eco Plates. The research showed that the soil physical properties got adjusted after a long-term application of an ecological farming system and that the measured values were stabilised, reaching the levels comparable with the average values for the relevant soil type. It is necessary to devote a continual attention to soil reaction, because soil is naturally acidified through acid atmospheric fallout as well as through calcium uptake-off by plants. The values of the selected heavy metals in the monitored period did not exceed the limit values specified in the Act No. 220/2004 Coll. Based on the results of Shannon’s diversity, we can conclude that the diversity in the investigated sites was low, from moderate to medium. The differences (3.26–3.36) among all 11 study localities were very small and not significant. There were determined the correlations between the soil functional diversity, soil physicochemical properties, and heavy metal contents. The average well colour development (AWCD) positively correlated with soil reaction and with Mg content and significantly negatively correlated with contents of Hg, Zn and Cu; equitability significantly positively correlated with soil reaction, Mg, AWCD and Shannon’s diversity. Spearman’s correlation coefficients confirmed the positive correlation between Shannon’s diversity and soil reaction, AWCD and Mg. In our study, no correlation was found between the functional diversity of microorganisms and the soil physical properties.

scholarly journals Micro-Nutrient Content of Differently Dried Coco Yam/Plantain Mixed Flour Blends (P24-008-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Jokodola Akinlotan ◽  
Ibiyemi Olayiwola ◽  
Silifat Sanni
Keyword(s):  
Zinc Content ◽  
Nutrient Content ◽  
Atomic Absorption Spectrometer ◽  
Mean Values ◽  
Funding Sources ◽  
Malnourished Children ◽  
Iron And Zinc ◽  
The Mean ◽  
Staple Foods ◽  
Flour Blends

Abstract Objectives Staple foods generally are deficient in micro-nutrients. The study was carried out to determine the micro-nutrients status of coco yam plantain mixed flour blends. Methods Ten blends of cocoyam/plantain at 5–50% were formulated from drum dried (DD), oven dried (OD) and sun dried (SD). The calcium, Potassium, iron, and zinc content were determined using Atomic Absorption spectrometer at different wavelengths. Data were analyzed using analysis of Variance. Means were separated using Duncan's multiple range tests. Results The mean values of calcium for DD, OD and SD decreased as the level of substitution increased (152.57 ± 5.07–47.30 ± 0.20; 159.21 ± 3.20–56.73 ± 2.00; 288.45 ± 2.01–147.38 ± 0.30) respectively likewise zinc content. Mean values of Potassium and Iron increased as the level of substitution increased (P < 0.05). Conclusions The study showed that the flour blends can be used as therapeutic diet for the malnourished children. Funding Sources SELF.

Chemical Properties Transformations of Copper Waste Heaps from Moldova Noua as a Result of their Afforestation

2020 ◽  
Vol 71 (9) ◽  
pp. 172-181
Author(s):  
Ilie-Cosmin Cantar ◽  
Lucian Dinca ◽  
Ion Chisalita
Keyword(s):  
Total Nitrogen ◽  
Granulometric Composition ◽  
Humus Content ◽  
Chemical Properties ◽  
Soil Samples ◽  
Slope Aspect ◽  
Soil Reaction ◽  
Soil Profiles ◽  
Chemical Transformations ◽  
Chemical Properties Of Soils

This paper analyses the chemical transformations of soils from certain copper waste heaps from Moldova Noua in the context of their afforestation. The analysis is based on a comparison between chemical properties of soils from different areas of the waste heaps. such as the planted and unplanted plateaus and slopes. The soil samples were gathered from soil profiles for each variants considered. and then analysis carried out in the �Marin Dracea� National Institute for Research and Development in Forestry laboratories. The results were compared and discussed in the context of the waste heaps� morphologic differences. such as land slope. aspect and the presence or absence of forest plantations. As such. the following elements were analyzed and compared: granulometric composition. soil chemical properties. soil reaction. humus content. total nitrogen. potassium content and heavy metals content. Forest vegetation had an important influence on the soil�s granulometric composition. on the humus and total nitrogen content. as well as on the soil�s reaction. In addition. granulometric composition differences between slopes that are exposed to the main wind and those that are not. suggest the importance of afforestation works for the former.

scholarly journals Effect of Different Growing Periods on the Nutritional Composition of Cowpea (Vigna unguiculata) Leaves

2020 ◽  
pp. 17-27
Author(s):  
Christine Wanja Maringa ◽  
Eiji Nawata ◽  
Fredrick Onyango Ogutu ◽  
Japheth Abuor Anuro
Keyword(s):  
Moisture Content ◽  
Zinc Content ◽  
Nutrient Content ◽  
Nutritional Composition ◽  
Climatic Conditions ◽  
Local Variety ◽  
Growing Period ◽  
Cowpea Varieties ◽  
Iron And Zinc ◽  
Increasing Temperature

Introduction: The nutritional composition of plant tissues is influenced by climatic conditions during their growth and development. Climate influences the growth rate, chemical composition and yield of crops. This study was conducted to evaluate the effect of growing periods on the nutritional composition of six cowpea varieties; Kenyan local variety (KLV), Indonesian local variety (ILV), Malaysian local variety (MLV), Japanese local variety (JLV) and two Kenyan varieties (K80 and KenKunde). Methodology: The seeds were grown in an experimental glasshouse under three varying growing periods in 2015 and 2016, respectively. The effect of growing condition on moisture, protein, potassium, calcium, magnesium, manganese, iron and zinc content was assessed. Results:  Moisture content varied from 67.9% to 78.0% and 81.1% to 88.8% in 2015 and 2016, respectively; while protein contents ranged from 7.3% to 14.6% and 18. 4% to 30.4% in 2015 and 2016, respectively. In 2015, there was a significant increase in moisture content, protein, K, Ca, Mg and Mn in KLV as temperature increased. This trend was different for ILV and MLV, which showed significant differences across growing periods with the June growing period showing the highest moisture, protein, K, Mg and Mn contents. In 2016, protein, Ca and Mg contents increased in response to increasing temperature across the growing periods. KLV and Kenkunde exhibited higher concentrations of most components. Conclusion: There were significant differences among varieties and across growing periods in nutrient content implying both variety and climatic conditions affect nutritional composition.

Influence of Applied Phytosanitary Treatments and Climatic Crop Year on Zinc Content in Wines from Tohani Vineyard

2017 ◽  
Vol 68 (9) ◽  
pp. 2092-2097
Author(s):  
Catalina Calin ◽  
Gina Vasile Scaeteanu ◽  
Roxana Maria Madjar ◽  
Otilia Cangea
Keyword(s):  
Zinc Content ◽  
Soil Samples ◽  
Limit Set ◽  
Red Wines ◽  
Metallic Ions ◽  
Sauvignon Blanc ◽  
Before And After ◽  
Haze Formation ◽  
Zinc Levels ◽  
Concentration Levels

Metallic ions present a great importance in oenological practice and usually are present in wines in levels that are not hazardous. Among all metallic ions, zinc presents a great interest because may cause the persistence of the wine sour taste and by the side of Al, Cu, Fe and Ni, contribute to the haze formation and the change of color. The present study was focused on measuring the concentration levels of mobile zinc from vineyard soil before and after phytosanitary treatments and zinc content from white (Feteasca Alba - FA, Riesling Italian - RI, Sauvignon Blanc - SB, Tamaioasa Rom�neasca - TR), rose (Busuioaca de Bohotin - BB) and red (Feteasca Neagra - FN) wines within the wine-growing Tohani area, Romania. Other objective was to investigate of the influence of crop year and variety on zinc levels found in wine samples. Mobile zinc content for all analyzed soil samples is low ([1.5 mg/kg). Analyses indicated that zinc content found in wines was below 5 mg/L, limit set by Organisation Internationale of Vine and Wine (OIV). Also, it was found that red wines contain zinc in higher concentrations than white ones.

Genotype × environment interactions for grain iron and zinc content in rice

2020 ◽  
Vol 100 (11) ◽  
pp. 4150-4164 ◽  
Author(s):  
Shilpa M Naik ◽  
Anitha K Raman ◽  
Minnuru Nagamallika ◽  
Challa Venkateshwarlu ◽  
Suresh Prasad Singh ◽  
...  
Keyword(s):  
Zinc Content ◽  
Iron And Zinc

scholarly journals An Integrated Study of Toxocara Infection in Honduran Children: Human Seroepidemiology and Environmental Contamination in a Coastal Community

2020 ◽  
Vol 5 (3) ◽  
pp. 135 ◽  
Author(s):  
Sergio A. Hernández ◽  
José A. Gabrie ◽  
Carol Anahelka Rodríguez ◽  
Gabriela Matamoros ◽  
María Mercedes Rueda ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Soil Samples ◽  
Environmental Study ◽  
Enzyme Linked Immunosorbent Assay ◽  
Student Body ◽  
Nested Polymerase Chain Reaction ◽  
Serological Tests ◽  
Cross Sectional ◽  
Coastal Community ◽  
Pcr Rflp

(1) Background: Infections caused by Toxocara canis and T. cati are considered zoonoses of global importance. Reports from North and South America indicate that human infections are widespread in both continents, but epidemiological information from Central America is still lacking. (2) Methodology: In the present cross-sectional multi-year study, we aimed to undertake the first seroepidemiological and environmental study on toxocariasis in Honduras. This included the determination of seroprevalence of anti-Toxocara spp. antibodies in children using a Toxocara spp. purified excretory-secretory antigens enzyme-linked immunosorbent assay (TES-ELISA) and a confirmatory Western blot. As well, through statistical analysis including logistic regression we aimed at identifying relevant biological and epidemiological factors associated with seropositivity. The study also entailed detection of parasites’ eggs in the soil samples both through Sheather’s concentration method and a nested polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. (3) Results: The study was undertaken in a coastal community of Honduras in 2 different years, 2015 and 2017. A total of 88 healthy schoolchildren completed the study, with participation of 79% (73/92) and 65% (46/71) of the student body in 2015 and 2017, respectively. Thirty-one children participated in both years (i.e., dual participants). Through both serological tests, seropositivity was confirmed in 88.6% (78/88) of children. Due to the high number of seropositives, logistic regression analysis was not possible for most socio-economic and epidemiological variables. Eosinophilia, on the other hand, was associated with seropositivity, independently of other intestinal helminthic infections. Continued seropositivity was observed in most of the dual participants, while seroconversion was determined in 8 of these children. Microscopic examination of soil samples did not yield any positive results. Through nested PCR-RFLP, 3 of the 50 samples (6%) were positive for Toxocara spp.; two were identified as T. canis and one as T. cati. (4) Conclusions: This work documents for the first time, high levels of human exposure to Toxocara spp. in Honduras. These findings, along with the country’s favorable epidemiological conditions for this zoonosis, emphasize the need for more research to determine whether this infection is underreported in the country.

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