Synergic Effect of Microorganism and Colloidal Biochar-Based Organic Fertilizer on the Growth and Fruit Quality of Tomato

It is well known that carbon-based organic fertilizer can effectively promote crop growth and improve nutrient utilization efficiency. However, little is known about the effect of microorganisms on the nutrient availability of carbon-based organic fertilizer. To elucidate the contribution of microorganisms to the agricultural benefit of colloidal biochar-based fertilizer, a 5-month pot experiment was conducted to study the effect of different combinations of Methyltrophic bacillus, colloidal biochar, and organic fertilizer on physical–chemical properties of soil, plant growth, physiological-biochemical reactions, yield, and quality of tomato. The results show that the addition of Methyltrophic bacillus effectively promoted the availability of soil nutrients (such as nitrate nitrogen and available potassium) and increased soil cation exchange capacity; meanwhile, it significantly increased the content of chlorophyll-a (9.42–27.41%) and promoted the net photosynthetic rate (10.86–13.73%) and biomass of tomato fruit (17.84–26.33%). The contents of lycopene, vitamin C, total sugar, and soluble sugar in the fruits treated by the ternary combination of Methyltrophic bacillus, colloidal biochar, and organic fertilizer increased by 58.40%, 46.53%, 29.45%, and 26.65%, respectively. The above results demonstrate that the addition of beneficial microorganisms could further improve the performance of biochar-based fertilizer on plant growth, yield, and fruit quality of tomato. This information provides evidence for the promising performance of microorganism-supported biochar organic fertilizer in agricultural applications.

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Characterization of tomato growth and fruit quality under foliar ammonium sprays

Open Agriculture ◽

10.1515/opag-2017-0055 ◽

2017 ◽

Vol 2 (1) ◽

Cited By ~ 1

Author(s):

Mohammad Kazem Souri ◽

Sara Dehnavard

Keyword(s):

Plant Growth ◽

Ammonium Sulfate ◽

Fruit Quality ◽

Foliar Application ◽

Tomato Fruit ◽

Nitrogen Concentration ◽

Titratable Acidity ◽

Soluble Solids ◽

Quality Factors

AbstractThis study was done to evaluate the effects of foliar application of ammonium sulfate on growth and fruit quality of tomato plants under hydroponic culture system. Over four months of tomato plant growth, plants were sprayed once per week with different concentrations of ammonium sulfate (0, 50, 100 and 200 mM), as well as with 50 mM every second day. Foliar application of ammonium sulfate led to reductions in many growth and quality parameters, and higher ammonium concentrations exerted greater reductions. Number of leaves, fresh weight of shoots, percentage of leaf dry weight and fruit yield were negatively associated with the treatment with ammonium sulfate. However, leaf nitrogen concentration, fruit diameter and fruit length increased significantly by the application of ammonium. Fruit quality factors were also affected by ammonium sulfate spray treatments. The maximum pH, titratable acidity and total soluble solids (TSS) were obtained from the lowest (50 mM) weekly application of ammonium sulfate. The results indicate that foliar application of ammonium in moderate concentrations could have beneficial effects on plant growth and quality of tomato fruit.

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Can nutrient‐utilization efficiency be improved by reduced fertilizer supply to maize plants treated with the plant growth regulator paclobutrazol?

Journal of Agronomy and Crop Science ◽

10.1111/jac.12521 ◽

2021 ◽

Author(s):

Birgit W. Hütsch ◽

Sven Schubert

Keyword(s):

Plant Growth ◽

Growth Regulator ◽

Plant Growth Regulator ◽

Nutrient Utilization ◽

Utilization Efficiency ◽

Nutrient Utilization Efficiency ◽

Maize Plants

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FOLIAR APPLICATIONS OF ZINC, IRON AND MANGANESE INFLUENCE THE PLANT GROWTH AND FRUIT QUALITY OF PAPAYA CV. RED LADY

Journal of Experimental Biology and Agricultural Sciences ◽

10.18006/2020.8(5).551.557 ◽

2020 ◽

Vol 8 (5) ◽

pp. 551-557

Author(s):

Gurjot Singh Pelia ◽

◽

A K Baswal ◽

Keyword(s):

Plant Growth ◽

Fruit Quality ◽

Foliar Application ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Fruit Weight ◽

Soluble Solids ◽

Total Carotenoids ◽

Heavy Soil

Prevalence of heavy soil is a major problem for fruit cultivation under Punjab conditions consequently leading to deficiency of several micro-nutrients including zinc (Zn), iron (Fe), and manganese (Mn) which adversely affects the growth and productivity. In this view, a study was planned to investigate the effect of foliar applications of zinc sulphate (ZnSO4), iron sulphate (FeSO4), and manganese sulphate (MnSO4) on vegetative growth, reproductive growth and fruit quality of papaya cv. Red lady. Plants sprayed with ZnSO4 (0.4 %) exhibited significantly highest plant height, plant girth, number of leaves, petiole length; initiated an earliest flowering and fruiting; and improved fruit quality viz., fruit weight, fruit length, titratable acidity, soluble solids concentrations, ascorbic acid content, total phenols content, and total carotenoids content as compared with the control and all other treatments. In conclusion, foliar application ZnSO4 (0.4 %) significantly improved plant growth and fruit quality in papaya cv. Red lady.

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After Life Effect of Endophytic Bacterium Bacillus Cereus on Litter Decomposition

10.21203/rs.3.rs-866340/v1 ◽

2021 ◽

Author(s):

Haijing Hu ◽

Rumeng Ye ◽

Lu Pang ◽

Han Jiang ◽

Kai Tian ◽

...

Keyword(s):

Bacillus Cereus ◽

Litter Decomposition ◽

Structural Equation ◽

Structural Equation Models ◽

Early Stage ◽

Nutrient Utilization ◽

Plant Litter ◽

Utilization Efficiency ◽

Soil Microbial Community Structure ◽

Nutrient Utilization Efficiency

Abstract Background and aims: Endophytic microorganisms exist commonly in plants and are recognized to increase plant growth especially under adverse physical environmental conditions. We here demonstrate that endophytic bacteria (EB) Bacillus cereus can accelerate the decomposition of plant litter and enhance nutrient availability for plant growth.Methods: We first obtained plant litter with and without EB inoculation using a model plant Arabidopsis thaliana in a microcosmic experiment, then conducted a litter decomposition experiment to investigated the effect of EB on litter decay rate, phosphorus availability, and on soil microbial community structure. We further evaluated wheat (Triticum aestivum) biomass growth using soils treated with and without EB.Results: Inoculation of EB significantly increased the mass loss of Arabidopsis litter in the middle stage of decomposition, elevated the activity of alkaline phosphatase in the early stage of decomposition, and increased soil available P at the end of decomposition. Analyses of Illumina MiSeq sequencing and structural equation models also indicated that EB inoculation had pronounced impact on the bacterial abundance and diversity in soil. Finally, the growth of the wheat was significantly promoted in the litter with EB decomposition system. Conclusion: EB mediated host after-life effect likely through accelerating the release of nutrients such as P from decomposing plant litter and regulating the structure of soil microorganisms, promoting the sustainability of nutrient utilization efficiency in a terrestrial ecosystem.

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Effects of Organic Fertilizer on Growth Performance and Postharvest Quality of Pak Choy (Brassica rapa subsp. chinensis L.)

AgroTech Food Science, Technology and Environment ◽

10.53797/agrotech.v1i1.6.2021 ◽

2021 ◽

Vol 1 (1) ◽

pp. 43-50

Author(s):

Nur Suhaida Mohamad ◽

Faizah Abu Kassim ◽

Norhanizan Usaizan ◽

Azimah Hamidon ◽

Zahir Shah Safari

Keyword(s):

Plant Growth ◽

Growth Performance ◽

Block Design ◽

Organic Fertilizer ◽

Fertilizer Application ◽

Leaf Length ◽

Leafy Vegetables ◽

Chicken Manure ◽

Postharvest Quality

Long-term use of inorganic fertilizers on leafy vegetables can increase soil acidity, harmful to the environment and leaving bad effects on human health. Organic fertilizer application is one of the safer alternatives with many beneficial effects by supplying nutrients for plant growth, environmental-friendly and producing an optimum quality of vegetables. Different organic amendment such as vermicompost, biochar and microbial compost has different effect on plant growth performance since good bacteria could improve structure of the soil and nutrient absorption. Therefore, this study aims to evaluate the effects of organic fertilizer on the growth performance and postharvest quality. The experimental design during planting was conducted in randomized completely block design with a factorial arrangement of treatmentswhile for postharvest quality study was conducted in completely randomized design. Organic fertilizer of vermicompost (110 g/plant), biochar (100 g/plant), microbial compost (80 g/plant) and chicken manure (37.5 g/plant) were treated on Pak choy two times on day 10 and day 24 after transplant. This research revealed the plant growth including plant height, leaf number and leaf length of Pak choy in all treatments were increased as growing stage increased. However, at the end of growing stage, microbial compost and vermicompost resulted in the highest of growth characteristics. In terms of postharvest quality, microbial compost showed the highest fresh weight and premium quality. This study proved that microbial compost at 80 g/plant exhibited optimum growth performance and the best postharvest quality of Pak choy.

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Effects of girdling, chemicals and plant growth regulators on production and fruit quality of ‘Hong Huay’ lychee

Acta Horticulturae ◽

10.17660/actahortic.2021.1312.50 ◽

2021 ◽

pp. 345-350

Author(s):

N. Chairungsee ◽

C. Kanoeithip ◽

K. Phunchaisri ◽

N. Sukhvibul

Keyword(s):

Plant Growth ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Fruit Quality

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The Impact of Producing Type and Dietary Crude Protein on Animal Performances and Microbiota Together with Greenhouse Gases Emissions in Growing Pigs

Animals ◽

10.3390/ani10101742 ◽

2020 ◽

Vol 10 (10) ◽

pp. 1742

Author(s):

Ahmad Reza Seradj ◽

Joaquim Balcells ◽

Laura Sarri ◽

Lorenzo José Fraile ◽

Gabriel de la Fuente Oliver

Keyword(s):

Greenhouse Gases ◽

Crude Protein ◽

Average Daily Gain ◽

Nutrient Utilization ◽

Growing Pigs ◽

Utilization Efficiency ◽

Greenhouse Gases Emissions ◽

Nutrient Utilization Efficiency ◽

Dietary Crude Protein ◽

The Impact

In order to reduce dietary nitrogen and achieve an efficient protein deposition as well as decrease N wastage, we challenged the nutrient utilization efficiency of two different producing types in front of a dietary crude protein (CP) restriction and studied the role of the microbiota in such an adaptation process. Therefore, 32 pure castrated male Duroc (DU) and 32 entire male hybrid (F2) piglets were raised in a three-phase feeding regime. At each phase, two iso caloric diets differing in CP content, also known as normal protein (NP) and low protein (LP), were fed to the animals. LP diets had a fixed restriction (2%) in CP content in regards to NP ones throughout the phases of the experiment. At the end of third phase, fecal samples were collected for microbiota analysis purposes and greenhouse gases emissions, together with ammonia, were tested. No changes were found in average daily feed intake (ADFI) of animals of two producing types (Duroc vs. F2) or those consumed different experimental diets (NP vs. LP) throughout the course of study. However, at the end of each experimental phase the average body weight (BW) of hybrid animals were higher compared to Duroc pigs, whereas a reverse trend was observed for average daily gain (ADG), where Duroc pigs showed greater values with respect to hybrid ones. Despite, greater CH4 and ammonia emissions in Duroc pigs with respect to F2, no significant differences were found in contaminant gases emissions between diets. Moreover, LP diets did not alter the microbial community structure, in terms of diversity, although some genera were affected by the dietary challenge. Results suggest that the impact of reducing 2% of CP content was limited for reduction in contaminant gases emissions and highlight the hypothesis that moderate change in the dietary protein levels can be overcome by long-term adaptation of the gut microbiota. Overall, the influence of the producing type on performance and digestive microbiota composition was more pronounced than the dietary effect. However, both producing types responded differently to CP restriction. The use of fecal microbiota as biomarker for predicting feed efficiency has a great potential that should be completed with robust predictive models to achieve consistent and valid results.

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