scholarly journals THE EFFECT OF ORGANIC FERTILIZERS AND BIOPREPARATION FLAVOBACTERIN ON POTATO YIELD AND SOIL FERTILITY

2019 ◽  
Vol 48 (6) ◽  
pp. 30-36
Author(s):  
A. I. Stepanov ◽  
A. Ya. Fyodorov ◽  
F. V. Nikolaeva ◽  
D. V. Borisova
Keyword(s):  
Biological Activity ◽  
Soil Fertility ◽  
Field Experiments ◽  
Growing Season ◽  
Organic Fertilizers ◽  
Combined Application ◽  
Biological Preparation ◽  
Permafrost Soils ◽  
The Republic ◽  
Different Doses

The paper presents the results of research into complex effect of organic fertilizers (decomposed cattle manure) in different doses with the biological preparation Flavobacterin on agrochemical parameters and biological activity of permafrost soils in the cultivation of the recognized potato variety Varmas. Field experiments were carried out in 2016–2018 on permafrost chernozem-meadow light-loamy saline soils of the Central Yakut lowland of the Republic of Sakha (Yakutia). The yield of potatoes increased with the application of manure in the dose of 60 t/ha and biological preparation Flavobacterin by 61.4%, control (without fertilizers) – 9.7 t/ha. In the variant: manure 40 t/ha + biopreparation Flavobacterin, the yield amounted to 13.0 t/ha; when treating with the biological preparation – 10.7 t/ha. The use of organic fertilizers in different doses in all studied variants increased the content of phosphorus, potassium and total nitrogen in the soil compared to the control. Combined application of organic fertilizers and biological preparation Flavobacterin increased the biological activity of permafrost soils by 2.9–4.7 times. The intensity of the biological activity of permafrost soils in all years of research was observed during the growing season of crops. The number of soil microorganisms reached its maximum in July and decreased at the end of the growing season (early September), due to the peculiarities of the hydrothermal regime of the soil under study. To preserve soil fertility, it is recommended to use organic fertilizers in combination with the biological preparation based on agrochemical parameters of permafrost soils.

scholarly journals Soil fertility management in apple orchard with microbial biofertilizers

2020 ◽  
Vol 222 ◽  
pp. 03020
Author(s):  
Andrei Kuzin ◽  
Alexei Solovchenko ◽  
Ludmila Stepantsova ◽  
Grigory Pugachev
Keyword(s):  
Soil Fertility ◽  
Drip Irrigation ◽  
Field Experiments ◽  
Irrigation System ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Azotobacter Chroococcum ◽  
Organic Fertilizers ◽  
High Rate ◽  
Mineral Fertilizers

Intensification of horticulture in Russia involves planting of new high-density orchards with drip irrigation and fertigation as well as intensification of the exploitation of traditional orchards. This approach involves an increase in mineral fertilizer application imposing the risk of soil fertility loss. For several reasons, the use of traditional organic fertilizers like manure in orchards is currently marginal. Although bacteria-based biofertilizers cannot substitute mineral fertilizers completely, they can significantly reduce the need for mineral fertilizer application. The effect of microbial biofertilizers of the brands “Azotovit” (Azotobacter chroococcum), “Phosphatovit” (Bacillus mucilaginosus), as well as a mixture of bacteria and the fungus, “Organic” (Azotobacter chroococcum, Bacillus subtilis, Bacillus megaterium, Trichoderma harzian) was studied in two field experiments. In the experiment #1, the preparations “Azotovit” and “Phosphatovit” were delivered through a drip irrigation system in various combinations with mineral fertilizers. In experiment #2, the preparation “Organic” was also applied to the soil with irrigation water, also in combination with the mineral fertilizer. When solely applied, none of the studied preparations changed significantly the soil nutrient content and yield as compared with the variant fertilized by the mineral fertilizer at the maximum studied application rate. The combination of the microbial biofertilizer and mineral fertilizers applied at a low rate ensured the yield commensurate to that obtained under high-rate application of the mineral fertilizer.

scholarly journals EFFICIENCY OF MICROGUMIN AT COMBINATION AT COMBINATION SEED TREATMENT OF SUMMER BARLEY WITH RAKSIL

2008 ◽  
Vol 6 ◽  
pp. 77-83
Author(s):  
I.M. Pyschur ◽  
K.I. Volkogon ◽  
L.V. Kosenko
Keyword(s):  
Biological Activity ◽  
Root Rot ◽  
Seed Treatment ◽  
Nitrogenase Activity ◽  
Agricultural Technology ◽  
Complex Action ◽  
Combined Application ◽  
Biological Preparation ◽  
Presowing Treatment ◽  
Microbial Preparation

The presowing treatment of barley seeds with the microbial preparation of complex action microgumin promotes sufficient increase of this culture yield and intensification of biological activity in rhizoshere. Combined application of microgumin with the raksil fungicide has not affected biological activity of biological preparation. Applied agricultural technology enhances barley seeds’ germination energy, promotes increase of potential nitrogenase activity on plants’ roots and prevents spreading of root rot diseases. It was established that tebuconasol (raksil reactant) in concentrations 0,01; 0,1; 0,3 g/l of nutrient medium promotes increase of nitrogenase activity of the microgumin bioagent Azospіrіllum brasilense 410.

Effects of bracken litter and frond canopy on emergence and survival of ryegrass and white clover seedlings

1989 ◽  
Vol 113 (3) ◽  
pp. 397-400 ◽  
Author(s):  
H. C. Lee ◽  
J. A. Cooke
Keyword(s):  
Adverse Effects ◽  
Soil Fertility ◽  
White Clover ◽  
Seedling Establishment ◽  
Field Experiments ◽  
Growing Season ◽  
Small Reduction ◽  
Successful Establishment ◽  
Allelopathic Effects ◽  
Glasshouse Experiment

SUMMARYTwo field experiments, at Woolly Hills Farm, County Durham, UK, and a glasshouse experiment were carried out in 1977. Early in the growing season (May-July), a covering of bracken litter increased the number of ryegrass and clover seedlings which became established both in an area where bracken had been removed and where there were developing fronds. In a second experiment (August-October), bracken litter had no effect on seedling establishment in the open. Under the frond canopy, the absence of litter was beneficial to clover establishment. The frond canopy reduced the number of ryegrass seedlings by half compared with the numbers in the open. In the glasshouse, litter caused a small reduction in the numbers of ryegrass and clover seedlings becoming established.The results suggest that litter may be either beneficial because of the prevention of desiccation in dry periods or detrimental, perhaps through allelopathic effects or shading. In terms of the successful establishment of a sown grass and clover sward, it would seem that litter removal by incorporation or burning is more justified in upland hill pastures because of the need to improve soil fertility than because of adverse effects of the litter itself.

scholarly journals Productivity and quality indicators of potato tubers using bioagents and adaptogenic drugs

2020 ◽  
Vol 17 ◽  
pp. 00243
Author(s):  
Vladimir P. Vladimirov ◽  
Leonid M. Egorov
Keyword(s):  
Field Experiments ◽  
Starch Content ◽  
Humus Content ◽  
Trichoderma Viride ◽  
Growing Season ◽  
Antagonistic Activity ◽  
High Mass ◽  
The Republic ◽  
Number Of Stems ◽  
Triple Treatment

Studies to identify the effectiveness of bioagents and adaptogenic preparations on plantings of potatoes of the Vineta variety were carried out on gray forest medium loam granulometric composition of the soil of the Zemlyaki farm in the Nizhnekamsk district of the Republic of Tatarstan. Field experiments were carried out in 2019 by employees of the Department of Plant Growing and Horticulture of Kazan State Agrarian University. The humus content in the arable layer of soil according to Tyurin is 3.35 %, pH is 5.7, easily hydrolyzable nitrogen is 112 mg/kg of soil, mobile phosphorus is 156 mg/kg, exchange potassium is 136 mg/kg of soil, molybdenum is 0.07, copper is 0.52, boron – 0.7, zinc – 4.82 mg/kg. The paper presents the results of studies on the effect of the preparation RECB-95B obtained on the basis of bacteria Bacillus subtilus, RECB-44 – Pseudomonas fluorescens, RECB-50B – Bacillus sp. and RECB-74B — derived from the fungus Trichoderma viride for antagonistic activity against pathogens. Based on the results of our preliminary studies, we selected these preparations for preplant treatment of tubers and vegetative plants. It was found that the most effective option for planting potatoes was the treatment of tubers before planting with the strain RECB-50B (2 l/t) + adaptogen in combination with three times spraying during the growing season RECB-95B, RECB-4B, RECB-50B using them together with adaptogen. Our data show that the mass of tubers does not always correspond to the number of stems and tubers, however, in variants 7 and 8 with a high mass of tubers, a larger number of stems and tubers per bush was noted. Less nitrates 73 mg/kg contained tubers from the variant when used for processing tubers of strain RECB – 50 B (2 l/t) and triple treatment of plants during the growing season with bioagents RECB – 95 B (0.5 l/ha), RECB – 44 B (0.5 l/ha), RECB – 50 B (1.0 l/ha). The use of these drugs in conjunction with the adaptogen led to an increase in the number of nitrates in the tubers. A higher starch content in tubers of 13.02 and 13.01 % was observed when treating the tubers of the drug Maxim (0.2 l/t) and strain RECB – 50 B (2 l/t) and triple treatment of plants during the growing season with bioagents RECB – 95 B (0.5 l/ha ), RECB – 44 B (0.5 l/ha), RECB – 50 B (1.0 l/ha). In the dry matter, the starch content was higher when the tubers were treated with rhizoplan and amounted to 63.38 %.

scholarly journals Biologized crop rotation – the main factor for fertility increases of sod-podzolic soils and arable land productivity in the Upper Volga

2019 ◽  
Vol 190 (11) ◽  
pp. 18-26
Author(s):  
Сабир Эседуллаев ◽  
Sabir Esedullaev ◽  
Иван Мельцаев ◽  
I. Meltsaev
Keyword(s):  
Winter Wheat ◽  
Soil Fertility ◽  
Crop Rotation ◽  
Spring Wheat ◽  
Field Experiments ◽  
Humus Content ◽  
Arable Land ◽  
Crop Productivity ◽  
Organic Fertilizers ◽  
Upper Volga

Abstract. The purpose of the study was to study the influence of biologized crop rotation with six fields by 50 %, saturated with legumes, on soil fertility and crop productivity on typical sod-podzolic light loamy soils of the Upper Volga. As a result of field experiments and laboratory studies, new data and knowledge about the effect of crop bipolarization on its productivity and the properties of sod-podzolic soil were obtained. For the first time in the region, it has been studied and established that use of legumes in the crop rotation instead of organic fertilizers partially contributes to the replenishment of the soil with organic matter and nitrogen in the form of organic residues and nodule bacteria, which leads to a decrease in the degradation of soil fertility or even to some improvement. By the end of rotation of the crop rotation when applying (NPK) 90 kg/ha compared with the control version (without NPK), in the biologized crop rotation, the humus content increased by 0.14 %, the acidity of the soil solution slightly decreased by 0.25 units, the content of nitrate nitrogen increased by 59 %, mobile phosphorus – by 72.8 % and exchange potassium – by 70.4 %. The density of soil compaction as a whole in a layer of 0–20 cm in occupied steam, under spring wheat and oats amounted to 1.22–1.24 g/cm3, in other crops (where treatment was not carried out for 2 years) – 1.35–1.39 g/cm3. Mineralization of flax tissue more actively occurred under clover 1st and 2nd years of use – 35.6–42.7 % and 31.0 and 37.3 % and in the employed (vetch-oat) – 26.5–34.4 %, less intensively under winter wheat – 20.9–27.5 and oats – 20.1–25.2 % and very weakly under spring wheat – 13.0–16.5 % at the control and the level of mineral nutrition, respectively. There were fewer weeds in winter wheat sowings – 84 pcs/m2, since it is more competitive with them, oats – 112 pcs, clover – 131 pcs, in a couple – 124 pcs and spring wheat – 138 pcs/m2. Productivity of crops to a greater extent was determined by the applied fertilizers. In fertilized plots, compared with the control, the productivity of the oatmeal mixture was 36.2 % higher, spring wheat – 24.4 %, clover 1st year of use – by 36.2 %, 2nd year of use – by 45.7 %, winter wheat – by 25.7 % and oats – by 30 %.

scholarly journals Biologization technologies in agriculture of the Belgorod region

2021 ◽  
Vol 36 ◽  
pp. 03010
Author(s):  
N.I. Kloster ◽  
V.B. Azarov
Keyword(s):  
Field Experiments ◽  
Arable Land ◽  
Poultry Manure ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Typical Chernozem ◽  
Combined Application ◽  
Surface Method ◽  
Different Types ◽  
Physical And Chemical

The article summarizes the results of field experiments to study the effectiveness of biologization elements in the cultivation of agricultural crops in the Central Black Earth zone of Russia. It has been proved that compost based on poultry manure and granular organic fertilizers with shallow introduction contribute to an increase in yield of up to 50 cwt/ha of grain while improving the fertility of typical chernozem. The coefficient of structure is growing, the bulk density of the soil, physical and chemical characteristics are stabilized. Liquid pig-breeding drainage shows an increase in grain yield but does not have a significant effect on the state of arable land. Similar characteristics apply to technologies for the grain crops cultivation with the use of mineral fertilizers. The greatest economic efficiency was obtained with the combined application of different types of organic fertilizers in moderate doses with the surface method of the main soil cultivation.

scholarly journals Effect of biofertilizers on yield and morphological parameters of onion cultivars

2019 ◽  
Vol 31 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Bojana Petrovic ◽  
Tomas Kopta ◽  
Robert Pokluda
Keyword(s):  
Field Experiments ◽  
Growing Season ◽  
Point Of View ◽  
The Other ◽  
Organic Fertilizers ◽  
Morphological Parameters ◽  
Economic Point ◽  
Number Of Leaves ◽  
Algal Extracts ◽  
Bulb Yield

AbstractThe present study evaluated the effect of different organic fertilizers on the morphological parameters and yield in two different onion cultivars. Proper use of organic fertilizers in appropriate amounts could be helpful to growers from the economic point of view. Field experiments were conducted to study the effect of three different organic biofertilizers on yield and morphological parameters of two onion cultivars ‘Stuttgarter Riesen’ and ‘Rote Laaer’ during 2016 and 2017. The investigated treatments included: B-Stimul® – a mixture of bacterial and algal extracts, EkoBooster 2® – organic matter and NPK, and VermiFit A® – an extract of compost produced by Californian earthworms, peat, nutrients, plant hormones, enzymes, amino acids, and sugars. The following parameters of onion plants were evaluated: number of leaves, bulb diameter, bulb weight, marketable and total yields. The study showed that all the results were affected by the growing season (higher values were recorded in 2016). In ‘Stuttgarter Riesen’, EkoBooster 2® application resulted in the highest bulb weight in 2016 (67.16 g) and in 2017 (55.17 g) and in the highest number of leaves in 2016 (6.66) and in 2017 (6.30), which led to the highest marketable bulb yield in 2016 (3.47 kg m−2) and in 2017 (2.53 kg m−2). In ‘Rote Laaer’ in 2016, EkoBooster 2® application resulted in the highest number of leaves (7.06), bulb diameter (54.32 mm) and bulb weight (79.30 g). In 2017, the largest bulb diameter (54.13 mm) and the highest bulb weight (71.79 g) and marketable bulb yield (2.39 kg m−2) were determined after VermiFit A® application. EkoBooster 2® showed the best effect on parameters such as the number of leaves, bulb weight, and marketable bulb yield of the cultivar ‘Stuttgarter Riesen’ and positively affected the parameters of ‘Rote Laaer’ during 2016, while in 2017 VermiFit A® showed better results as compared to the other treatments.

scholarly journals Characteristics of soil tillage for rice after alfalfa

2021 ◽  
Vol 843 (1) ◽  
pp. 012030
Author(s):  
D S Magomedova ◽  
N R Magomedov ◽  
S A Kurbanov
Keyword(s):  
Soil Fertility ◽  
Quality Indicators ◽  
Field Experiments ◽  
Rice Yield ◽  
Soil Tillage ◽  
Rice Grain ◽  
Harvesting Time ◽  
Green Mass ◽  
The Republic

Abstract The purpose of the research was to study the effect of harvesting time and methods of using alfalfa biomass on soil fertility and rice yield at different times of the main tillage. Field experiments were conducted in the Kizlyar district of the Republic of Dagestan according to the scheme: 1. autumn plowing after harvesting the 3rd mowing of alfalfa 3 years of use, control; 2. the overlapping of chopped green mass of alfalfa-3rd cut alfalfa 3 years of use; 3. spring plowing after harvesting the 1st cut alfalfa 4 years of use; 4. the overlapping of chopped green mass of alfalfa 1st cut alfalfa 4 years of use. The results shown that the best time for cutting the layer of perennial alfalfa is spring plowing of the green mass of alfalfa 1 mowing, which allows you to get a yield of 6 t/ha without reducing the quality indicators of rice grain. The data on the rice yield shows that in the spring tillage the yield was 5.41 t/ha, and in the autumn tillage only 4.91 t/ha. Carrying out sideration at both terms of the main tillage contributed to an increase in yield by 0.81-1.11 t/ha.

scholarly journals Effects of cow dung and wood biochars and green manure on soil fertility and tiger nut (Cyperus esculentus L.) performance on a savanna Alfisol

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Aruna Olasekan Adekiya ◽  
Abiola Folakemi Olaniran ◽  
Titilayo Tolulope Adenusi ◽  
Charity Aremu ◽  
Wutem Sunny Ejue ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Green Manure ◽  
Field Experiments ◽  
Growth And Yield ◽  
Cow Dung ◽  
Cyperus Esculentus ◽  
Tithonia Diversifolia ◽  
Nutrient Contents ◽  
Rooting Zone ◽  
Combined Application

AbstractTwo field experiments were conducted concurrently in 2019. The study investigated the effects of single and combined application of wood biochar (WB) and cow dung biochar (CDB) with green manure (GM) on soil properties, performance, and tuber qualities of tiger nut. The treatments consisted of: CDB at 10 t ha−1, WB at 10 t ha−1, GM—Tithonia diversifolia at 10 t ha−1, CDB + GM, WB + GM, control. The six treatments were arranged in RCBD with three replications. CDB, WB, and GM either sole or combined increased moisture content, SOC, nutrient contents, culturable microorganisms, performance, moisture, ash, fiber, and protein contents of the tiger nut compared with the control. CDB has a higher N, C: N ratio, P, K, Ca, Mg, CEC, and pH relative to. CDB alone and CDB + GM increased growth and yield compared with WB alone and WB + GM. CDB + GM has the highest value of growth and yield of tiger nut. GM alone improved growth and yield of tiger nut compared with the two sole biochar treatments. CDB + GM and WB + GM increased growth and yield of tiger nut compared with their sole forms. This was adduced to biochar allowing the retention of nutrients from rapidly decomposing Tithonia within the rooting zone, thereby promoting better effectiveness of nutrient uptake and increase in yield. Therefore, for good soil fertility and tiger nut yield, it is important that the addition of a fast releasing nutrient source to biochar be sought.

scholarly journals The effectiveness of retardants moddus and messidor in the cultivation of spring barley on different nutrient status

2021 ◽  
Vol 32 ◽  
pp. 02009
Author(s):  
Alexander Morozov
Keyword(s):  
Mineral Nutrition ◽  
Field Experiments ◽  
Spring Barley ◽  
Nutrient Status ◽  
Nutrient Content ◽  
Growing Season ◽  
High Nutrient ◽  
Positive Effect ◽  
Different Levels ◽  
Different Doses

The results of field experiments on the effectiveness of the use of retardants Moddus and Messidor in the cultivation of spring barley at different levels of mineral nutrition are presented. The shortening of the second internode of barley plants by 3.3-24.1% and the increase in its thickness by 1.43.7% were established when using retardants Moddus and Messidor in different doses on a high nutrient content. The data obtained indicates positive effect of retardants on increasing the resistance of barley stems to unfavorable factors (rain and wind), which is confirmed by the results of assessing the degree of lodging. It was found out that the use of retardants on natural nutrient content in a dry growing season leads to the significant decrease in yields (from 0.22 to 0.94 t/ha). In slightly arid and excessively humid conditions of the growing season, the use of retardants on medium nutrient content provides the significant increase of the yield from 0.22 to 0.53 t/ha, on high nutrient content from 0.21 to 0.52 t/ha. In average, over three years of research, the highest yield of barley was obtained on high nutrient content when crops were treated with Messidor at a dose of 1.0 l/ha, Moddus at a dose of 0.4 l/ha. The best economic indicators were established when feed barley was cultivated on medium nutrient content (N15 P39 K39 + pre-seeding application of N68) using retardants Moddus at a dose of 0.2 l/ha, Messidor at a dose of 0.5 l/ha.

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