scholarly journals Analysis of Bacillus thuringiensis treatment impact on microflora and cellulosolytic processes in southern chernozem

2021 ◽  
Vol 937 (3) ◽  
pp. 032092
Author(s):  
A V Kryzhko
Keyword(s):  
Bacillus Thuringiensis ◽  
Soil Fertility ◽  
Soil Treatment ◽  
Trophic Groups ◽  
Destructive Effect ◽  
Potato Plants ◽  
Microbiological Processes ◽  
Insecticide Exposure ◽  
Significant Relationships ◽  
Southern Chernozem

Abstract When using insecticides based on B. thuringiensis in biocenoses, the issues of their influence directly on plants and soil fertility are particularly relevant. The aim of the research was to study the direction of microbiological processes in the soil after processing potato plants with liquid spore cultures of entomopathogenic B. thuringiensis 792, 800, 810, 815, 857, 888, 902, 989, 994 and 0371 strains. The nature and extent of insecticide exposure were assessed by the quantity of microorganisms in the main ecological and trophic groups. It has been shown that soil treatment with B. thuringiensis strains 792, 854 and 989 influences the intensity of southern chernozem CO2 emission most actively, by 5.7-6.0 times. The studies made it possible to establish that B. thuringiensis strains 810, 854, 888 and 902 are able to exert the most active effect on the decomposition of cellulolose, increasing its activity by 93.7; 85.6; 82.0-93.7% to control. The statistically significant relationships study of correlation dependences made it possible to conclude that the treatment of southern chernozem with strains of B. thuringiensis 792, 800, 810, 854, 888 and 0371 does not have a destructive effect on soil microbocenosis.

scholarly journals Split fertilization as a strategy to reduce the amount of fertilizer applied in potato crops form Colombia. Case of study

2020 ◽  
Vol 14 (2) ◽  
pp. 240-248
Author(s):  
Oscar Iván Monsalve ◽  
Eduardo María Espitia ◽  
Martha Marina Bolaños-Benavides
Keyword(s):  
Soil Fertility ◽  
Potato Plant ◽  
Split Application ◽  
Potato Plants ◽  
Low Efficiency ◽  
Effect On Yield ◽  
Potato Crops ◽  
Positive Effect

In potato crops in Colombia, fertilization has low efficiency in terms of absorption of nutrients by the plant due to fixing, leaching or volatilization processes. To counter this phenomenon, we evaluated the effect of the split application of fertilizers on potato plants and soil. Five treatments were evaluated: Control - fertilization used by farmers locally; As - fertilization recommended by the lab; AsSplit - monthly split of lab recommendation; AsSplit25 - monthly split of lab recommendation, reduced globally by 25%; AsSplit50 - monthly split of the lab recommendation, reduced globally by 50%. AsSplit treatment generated the highest yield (34.13 t ha-1), while treatments that reduced the amount of fertilizer by 25% and 50% obtained the lowest yield (30.94 and 29.57 t ha-1, respectively). However, they generated the lowest amount of NO3- in the leachate measurements at 30 and 90 cm deep. Our results suggest that designing the fertilization formula and applying it according to the requirements of the potato plant and soil fertility generates a positive effect on yield crop and environmental.

scholarly journals Field study on the effect of the Entomopathogenic Fungi Beauveria bassiana (Bals.) Vuil. On the cotton leaf worm Spodoptera littoralis (Boisd.) on potato plant.

2008 ◽  
Vol 2 (1) ◽  
pp. 24-32
Author(s):  
Sh. H. AL-Obaidi ◽  
L. K. AL-Ani ◽  
W. A. Hussain
Keyword(s):  
Field Study ◽  
Beauveria Bassiana ◽  
Entomopathogenic Fungi ◽  
Potato Plant ◽  
Spodoptera Littoralis ◽  
Infection Intensity ◽  
Soil Treatment ◽  
Cotton Leaf ◽  
Plant Yield ◽  
Potato Plants

A field study were conducted to evaluate the efficacy of the entomopathogenic fungi Beauveria bassiana as abiocontrol agent for the cotton leaf worm Spodoptera littoralis infesting potato plants. Results indicated that soil treatment of the entomopathogenic fungi significantly reduced the percentage of plant infestation to 64.3, 60.7 % after 14, 21 days. Results of the infection intensity also significantly reduced in treatment of entomopathogenic fungi in soil to 18.7, 9.9 pore/leaf after 14, 21 days of treatment.The results revealed the higher efficiency of entomopathogenic fungi on plant yield, it become 633.3 gm in entomopathogenic fungi in soil treatment.

Transgenic sweet potato plants carrying the delta-endotoxin gene from Bacillus thuringiensis var. tenebrionis.

Plant Science ◽  
1998 ◽  
Vol 139 (2) ◽  
pp. 175-184 ◽  
Author(s):  
R. Morán ◽  
R. Garcı́a ◽  
A. López ◽  
Z. Zaldúa ◽  
J. Mena ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Sweet Potato ◽  
Potato Plants ◽  
Delta Endotoxin

The reconstruction and expression of a Bacillus thuringiensis cryIIIA gene in protoplasts and potato plants

1993 ◽  
Vol 21 (6) ◽  
pp. 1131-1145 ◽  
Author(s):  
Michael J. Adang ◽  
Margaret S. Brody ◽  
Guy Cardineau ◽  
Nancy Eagan ◽  
Richard T. Roush ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Potato Plants

scholarly journals Composition and amount of nutrients entering the soil with cotton biomass and green manure

2021 ◽  
Vol 12 (2) ◽  
pp. 3127-3129
Author(s):  
Hasanova Aynur Oruj, Et. al.
Keyword(s):  
Soil Fertility ◽  
Physical Properties ◽  
Green Manure ◽  
Crop Residues ◽  
High Efficiency ◽  
Developed Countries ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Organic Substances ◽  
Microbiological Processes

The experience of developed countries in the field of agriculture and research results show that high efficiency from mineral fertilizers can be obtained on fertile soils. That is, the soil should contain a large amount of organic substances, microelements, beneficial microorganisms, various enzymes that activate microbiological processes, normalize and optimize the nutritional, thermal and water-physical properties of the soil. This can be achieved by regularly applying crop residues and organic fertilizers to the soil. Siderata - green fertilizers - are of great importance for increasing soil fertility.

INFLUENCE OF BIOLOGIZATION METHODS AND DIFFERENT TECHNIQUES OF SOIL TREATMENT ON THE PARAMETERS OF SOIL FERTILITY AND CROP YIELD IN ROTATIONAL CROPPINGS

2016 ◽  
Vol 3 (50) ◽  
pp. 47-52
Author(s):  
Alexander A. Dedov ◽  
◽  
Marina A. Nesmeyanova ◽  
Anatoly V. Dedov ◽  
Victor I. Voronin ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Crop Yield ◽  
Soil Treatment

scholarly journals Microbiocenosis of southern chernozem under the influence of no-till

2020 ◽  
Author(s):  
T.N. Melnichuk ◽  
◽  
A.Yu. Egovtseva ◽  
S.F. Abdurashitov ◽  
E.R. Abdurashytova ◽  
...  
Keyword(s):  
Farming Systems ◽  
Farming System ◽  
Metagenomic Analysis ◽  
Trophic Groups ◽  
Virgin Soil ◽  
Cellulolytic Microorganisms ◽  
No Till ◽  
Number Of Microorganisms ◽  
Southern Chernozem

The purpose of the research was to assess microbocenosis of the southern chernozem under the influence of no-till and microbial preparations. A metagenomic analysis of the southern chernozem revealed 12 phyla, including 11 bacteria and 1 archaeon. The number of cellulolytic microorganisms increased under the influence of farming systems compared to virgin soil. The use of microbial preparations contributed to an increase in the number of microorganisms of ecological-trophic groups and the representation of the majority of phyla, which also depended on the farming system.

scholarly journals Efficiency of application of biofertilizers on the basis of sewage sludge of treatment facilities of Odessa

2020 ◽  
Vol 107 (3) ◽  
pp. 71-78
Author(s):  
V. Krutyakova ◽  
◽  
N. Pyliak ◽  
V. Dyshliuk ◽  
O. Nikipelova ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Soil Fertility ◽  
Biological Treatment ◽  
Field Research ◽  
Black Soil ◽  
Corn Yield ◽  
Trophic Groups ◽  
Quantitative Characteristics ◽  
Seed Husk ◽  
Treatment Facilities

Efficiency of application of biofertilizers on the basis of sewage sludge of treatment facilities of Odessa The article presents the results of the application of new biofertilizers in the technology of growing corn for grain. Biofertilizers – on the basis of sewage sludge of biological treatment plants «Southern» and «Northern» of Odesa with the addition of winter wheat straw and sunflower seed husk. The effectiveness of the application of biofertilizers based on sewage sludges was studied in a field experiment on black soil ordinary medium humus. According to the results of field research it is established that the use of new biofertilizers based on sewage sludge of biological treatment plants «Southern» and «Northern» of Odesa in corn cultivation technologies increases the quantitative characteristics of microorganisms of different ecological and trophic groups, which, in turn, helps to increase soil fertility and corn yield for grain. Keywords: biological treatment plants, bioorganic fertilizers, efficiency, ecological and trophic groups of microorganisms, rhizosphere, soil fertility.

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