Organic Fertilization and Sufficient Nutrient Status in Prehistoric Agriculture? – Indications from Multi-Proxy Analyses of Archaeological Topsoil Relicts

Aim. To substantiate the agroecological estimation of the performance of a short crop rotation in conditions of intense and organic system of fertilization on the basis of restoring normative parameters of emission and se- questration of С-СО 2 circulation while using by-products as organic fertilizers in conditions of modern climatic system of the Forest-Steppe of Ukraine. Methods. Field, statistical, laboratory. Results of Investigations. The performance of short crop rotations is determined by the capacity of С-СО 2 balance. Strong inverse correla- tion was found between the capacity of N and the ratio between C and N in the agrocenosis, which demon- strated that enhancing the humifi cation processes (ratio constriction) led to the increase in the capacity of С org balance and the decrease in the capacity level of С-СО 2 balance (enhancing mineralization), related to the reduction in the performance of crops in the agrocenosis of a crop rotation compared to the organic system of fertilization. The capacity of С-СО 2 and С org balance correlates at the medium level of inverse direction, and the yield of the main products, feed units and digestible protein correlates at the level of strong direct correlation. Conclusions. General mineralization of by-products and humus in the agrocenosis and humifi cation processes are antagonists, so extending the ratio between С and N at the intense fertilization system stimulates the in- crease in performance and reducing С to N similar to the organic fertilization system enhances the humifi cation process due to binding of С org into humus and limits mineralization which leads to the reduction in agrocenosis performance at the organic fertilization system.

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Influence of mineral and organic fertilization on the production of CO2 and N2O gases in soil

Agrokémia és Talajtan ◽

10.1556/agrokem.62.2013.1.10 ◽

2013 ◽

Vol 62 (1) ◽

pp. 143-162

Author(s):

György Heltai ◽

Attila Anton ◽

Sándor Hoffmann ◽

Tibor Szili-Kovács ◽

Katalin Berecz ◽

...

Keyword(s):

Organic Fertilization

A Keszthelyen 1963-ban beállított „Szerves- és műtrágyák hatását összehasonlító tartamkísérlet” kiválasztott kezeléseiből vett talajokkal beállított tenyészedénykísérletben és ezzel párhuzamosan a szegélyparcellákból kiemelt bolygatatlan talajoszlopokban vizsgáltuk az ásványi- és istállótrágyák, valamint a talajba bedolgozott növényi szerves anyag hatását a talajlevegőben a tenyészidő folyamán felhalmozódó CO2és N2O gázok képződésének dinamikájára.A CO2-koncentráció a tenyészidő folyamán a kezdeti stagnálás után egy, vagy több maximum elérése után a kezdeti szintre csökkent mindkét kísérleti rendszerben, s a változás jó korrelációt mutatott a napi középhőmérséklet változásával.A N2O képződésének időbeli változása a talajoszlopokban nem mutatott egyértelmű tendenciát, míg a tenyészedényekben csak a vetést követő 6. napig mértünk koncentrációnövekedést.A bolygatatlan talajoszlopokban a felszíntől 40 cm mélységig a CO2-koncentráció szignifikánsan növekedett, 40–60 cm között már nem változott számottevően. Ugyanez a tendencia mutatkozott a N2O-koncentráció mélység szerinti változásában, de a nagyobb mérési bizonytalanság miatt kevésbé egyértelműen. A tenyészedényekben a 20 cm mélyen elhelyezett csapdákban mért CO2-koncentráció értékek nagyságrendileg megegyeztek a talajoszlopban 20 cm mélyen mért értékekkel. A trágyázatlan kezelésekben a növények jelenléte mind a talajoszlopban, mind a tenyészedényekben növelte a CO2- és a N2O-produkciót. A trágyázási kezelések hatására a talajoszlopokban csökkent mindkét gáz produkciója. Szerves trágya alkalmazásakor növény jelenlétében ez a csökkenés kisebb mértékű volt, mint ásványi trágya esetében. A trágyázási kezelések hatására a tenyészedényekben növények jelenlétében növekedett a talajban a CO2és N2O produkciója. A növekedés a trágyakezelések termésnövelő hatása sorrendjében istállótrágya < ásványi trágya < (istállótrágya+ásványi trágya) fokozódott.Összegezve megállapítható, hogy a CO2és N2O gázképződés és a talajból történő kilépés feltételei a bolygatatlan és a művelt talajban eltérnek, s e folyamatra jelentős hatással van a növények jelenléte és anyagcseréje. Kísérleteink eredményeként létrehoztunk egy olyan adatbázist, amelyre alapozva megfelelő matematikai modellek alkalmazásával reálisan becsülhető a mezőgazdasági talajok CO2 és N2O emissziója különböző tápanyagellátási és művelési módok esetén.

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Sidrophore Production and Phosphate Solubilization by Bacillus cereus and Pseudomonas fluorescens Isolated from Iraqi Soils and Soil Characterization

International Journal of Pharmaceutical Quality Assurance ◽

10.25258/ijpqa.v9i4.14545 ◽

2018 ◽

Vol 9 (4) ◽

Author(s):

Zaid Raad Abbas ◽

Aqeel Mohammed Majeed Al-Ezee ◽

Sawsan H

Keyword(s):

Bacillus Cereus ◽

Pseudomonas Fluorescens ◽

Phosphate Solubilization ◽

Bacterial Species ◽

Nutrient Status ◽

Bacterial Count ◽

Soil Samples ◽

Phosphate Solubilizing Bacteria ◽

Clear Zone ◽

Zone Formation

This study was conducted to explore the ability of Pseudomonas fluorescens and Bacillus cereus to solubilizing a phosphate in soil for enhancing the planting growth and, its relation with soill characterization. The isolates were identified as P.fluorescens and B. cereus using convential analysis and, its phosphate solubilization ability and sidrophore was shown by the clear zone formation on National Botanical Research Institute��s Phosphate medium. Moreover, Pseudomonas fluorescens isolates (n = 9) and three of B. cereus isolated from agricultural area in Baghdad university, Mustansiriyah university and Diyala bridge. Results displayed that bacterial count were varied in soil samples according to their region, and ranging from 30 to 60 *10 2 CFU/g in Baghdad university soil to 10��20 *10 2 CFU/g in Mustansiriyah university soil, the Baghdad soil macronutrient which included: NH4, NO3, P, and K were, 8.42, 20.53, 19.09, 218.73 respectively, While the physio analysis revealed that the mean of pH was 7.3 and EC was 8.63. on the other hand the micronutrient analysis indicated that the soil samples were included Ca, Fe, Mn, Zn and Cu which gave their mean 5025.9, 8.9, 4.9, 0.5 and 1.5 respectevily. Results revealed that all isolated bacteria (9 isolates of P.fluorescens and three isolates of B. cereus gave ahalo zone which mean their ability to be phosphate solubilizing bacteria at 100%. Results revealed that all isolated bacteria were detected a ability to produce high levels from chelating agents (siderophores)) by P.fluorescens and. B cereus at 100%, when appeared ahalo clear zone. Furthermore, the high levels of phosphate solubilization and siderophore production were grouped in bacterial species isolated from Iraqi soils. might be attributed to many soil factors such as soil nutrient status, soil acidity, water content, organic matter and soil enzyme activities.

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PROGRESS OF RESEARCH IN NUTRITIONAL THERAPY FOR NEW CORONAVIRUS INFECTION (NARRATIVE REVIEW)

Indian Journal of Medical Research and Pharmaceutical Sciences - September-2020 ◽

10.29121/ijmrps.v7.i11.2020.2 ◽

2020 ◽

Vol 7 (11) ◽

pp. 7-19

Keyword(s):

Theoretical Study ◽

Animal Experiments ◽

Nutrient Status ◽

Nutritional Therapy ◽

Review Of The Literature ◽

Global Concern ◽

Coronavirus Infection ◽

Spread Of Infection ◽

Development Methods ◽

Positive Effect

Objective: In this review, we highlight the importance of an optimal nutrient status to strengthen the immune system during the COVID-19 crisis, focusing on the most relevant constituents that reduce inflammation and Provide a holistic perspective nutritional therapy the new coronavirus (covid-19) to assist researchers and improving areas for future response plans to deal with these diseases, and to provide a summary of the nutrients that help stop their development. Methods: This is a theoretical study conducted through a comprehensive review of the literature and research in the research engines (PubMed), (Read) and (ELSEVIER) and other new studies published in Chinese; we obtained information nutritional treatment who contributed to increasing the immunity of patients, due to the lack of treatment for this disease. Results: Until now no effective drug for the treatment of new coronavirus, pneumonia (covid-19) has been found. The development of vaccines is still in animal experiments. Recommendations and measures to control the spread of infection and nutritional therapy are still the only way to prevent the spread of covid-19 virus. Because, People relied only on treatments that were effective on previous viruses, for example those that have been used during the SARS and MERS epidemics. Discussion: The Covid-19 virus remains a global concern and more research is needed to control it. In addition, people need to know the nutrition ingredients that have a positive effect on increasing the immunity of the human body.

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ECOLOGICAL AGRICULTURE: DYNAMICS OF THE BIOLOGICAL ACTIVITIES IN SOILS CULTIVATED WITH MAIZE UNDER THE INFLUENCE OF ORGANIC FERTILIZATION

Environmental Engineering and Management Journal ◽

10.30638/eemj.2010.192 ◽

2010 ◽

Vol 9 (10) ◽

pp. 1437-1441 ◽

Cited By ~ 1

Author(s):

Teodor Robu ◽

Marius Zaharia ◽

Nicoleta Irimia

Keyword(s):

Biological Activities ◽

Organic Fertilization ◽

Ecological Agriculture

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Quaternary stratigraphy and tectonics, and late prehistoric agriculture of the Safford Basin (Gila and San Simon river valleys), Graham County, Arizona

Open-File Report ◽

10.3133/ofr20041062 ◽

2004 ◽

Author(s):

Brenda B. Houser ◽

Phillip A. Pearthree ◽

Jeffry A. Homburg ◽

Lawrence C. Thrasher

Keyword(s):

Late Prehistoric ◽

Prehistoric Agriculture ◽

Quaternary Stratigraphy ◽

River Valleys

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INFLUENCE OF GREENHOUSE SHADING AND DIFFERENT NUTRIENT MANAGEMENT PRACTICES ON ALLEVIATING HEAT STRESS, IMPROVING PLANT NUTRIENTS STATUS, FLOWERING GROWTH AND YIELD OF TOMATO

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v51i4.1079 ◽

2020 ◽

Vol 51 (4) ◽

pp. 1001-1014

Author(s):

Sulaiman & Sadiq

Keyword(s):

Heat Stress ◽

Management Practices ◽

Nutrient Management ◽

Block Design ◽

Nutrient Status ◽

Growth And Yield ◽

Reproductive Growth ◽

Positive Effects ◽

Nutrition Programs ◽

The Impact

The experiment was conducted in a greenhouse during 2017 and 2018 growing seasons to evaluate the impact of the shading and various nutrition programs on mitigating heat stress, reducing the use of chemical minerals, improving the reproductive growth and yield of tomato plant. Split-plot within Randomized Complete Block Design (RCBD) with three replications was conducted in this study. Shading factor was allocated in the main plots and the nutrition programs distributed randomly in the subplots. Results indicate that shading resulted in the decrease of daytime temperature by 5.7˚C as an average for both seasons; thus a significant increasing was found in leaf contents of macro nutrients (Nitrogen, Phosphorous, and Potassium), and micro nutrients (Iron, Zinc and Boron), except the Iron content in 2018 growing season. Furthermore, shading improved significantly the reproductive growth and tomato yield. Among the plant nutrition programs, the integrated nutrient management (INM) including the application of organic substances, bio inoculum of AMF and 50% of the recommended dose of chemical fertilizers; lead to the enhancement of nutrients content, reproductive characteristics and plant yield. Generally, combination of both shading and INM showed positive effects on plants nutrient status and persisting balance on tomato flowering growth and fruits yield.

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