Yield Excess Research Articles

Fluorescence switching of triarylamine-based polyamides with pendant pyrene units and its application in electrochromic smart displays

The pyrene group was directly connected to the triarylamine (TAA) unit through a benzene bridge via the Suzuki reaction to successfully prepare the diamine monomer. A series of new polyamides (PAs) based on TAA units were prepared by polycondensation. The PAs exhibited good solution processability and high thermal stability with the char yield in excess of 53 % at 800 °C in air atmosphere. In solvents with different polarities, these PAs showed solvatochromic effect and large stokes shift. Strongly photoluminescent PAs have a sensitive stimulus response to explosive and hazardous gas, and its fluorescence is easily turned off by the addition of trinitrophenol (TNP) and hydrogen chloride (HCl). And achieve fluorescence switching between exposure to HCl and ammonia (NH3) gas. The PAs exhibited a reversible color response in the electrochemical oxidation process, with no significant degradation in current and transmittance after 200 cycles. The sandwich structure multicolor electrochromic device can achieve electrochromic performance applied by different voltages.

Enhancing reed cellulose conversion to glucose with octyl glucoside and tea saponin pretreatment

Low pretreatment temperatures are beneficial for enhancing the activity of both soluble lignin and lignin in pretreated solids. To achieve high-activity lignin and a higher glucose yield at a lower lignin removal rate and reduced enzymatic loading, the synergistic effects of octyl glucoside and tea saponin during low-temperature ammonia‑oxygen pretreatment and enzymatic hydrolysis were explored. Utilizing a moderated lignin extraction at 38 %, with pretreatment at 110 °C, and enriched with 1 % octyl glucoside and 0.06 g/g tea saponin, the biochemical conversion was galvanized. This manifested in an enzymatic hydrolysis efficiency of 96 % and a glucose yield in excess of 85 % at an enzyme loading of 5 FPU/g of pretreated-solids. Conversely, the lignin removal rate without surfactants was 26 %, resulting in 70 % hydrolysis efficiency even at a higher enzyme loading of 15 FPU/g of pretreated-solids. In order to minimize the pretreatment temperature and enzyme load as much as possible without affecting the efficiency of enzymatic hydrolysis and glucose yield, the goal of this research is to investigate the roles of octyl glucoside in the pretreatment process and tea saponin in the enzymatic hydrolysis process. This study provides a new approach for refining lignocellulosic biomass.

Investigation of ferulic acid recovery from enzymatic hydrolysate of wheat bran using various solvents and liquid-liquid extraction assisted by membrane contactor

Ferulic acid (FA) is the main phenolic compound in wheat bran. Its antioxidant and antibacterial properties make it a valuable product in various field. This study investigates the recovery of FA from an enzymatic hydrolysate of wheat bran via a liquid–liquid extraction (LLE) assisted by membrane contactor (MC). Initially, three alcohols (oleyl alcohol, octan-1-ol, decan-1-ol), two esters (1-octyl acetate and ethyl acetate), and one ketone (methyl isobutyl ketone) were examined for FA recovery from a binary solution with varying pH and initial FA concentrations. Subsequently, the LLE assisted by MC from the enzymatic hydrolysate at both natural pH (5.5) and adjusted pH (4) was studied. The findings indicate that, at pH 4, all the solvents extract over 88–97 % of FA. At pH 5, 6, and 7, only oleyl alcohol and 1-octyl acetate achieve extractions exceeding 82–89 %. The examination of the initial FA concentration ranging from 50 to 250 mg/L showed no significant impact on FA recovery, as all solvents permitted extraction of more than 92 %. The results of the LLE assisted by MC of FA from the enzymatic hydrolysate have shown that initial pH and solvent viscosity play a crucial role in both the kinetics and the maximum recovery yield of FA. Specifically, at pH 4, extraction kinetics are significantly faster, resulting in a potential yield in excess of 97 %. However, higher solvent viscosity decreases extraction kinetics, reducing the mass transfer coefficient. The use of MC proves advantageous in preventing the formation of emulsions, particularly when long-chain alcohols and esters are involved in the process. The obtained results enabled proposing a comprehensive solution to recover FA from biomass, a crucial step in optimizing the utilization of natural phenolic compounds for potential applications across various industries.

Plant leaf disease detection using hybrid feature extraction techniques

Excessive yield losses are due to delayed identification of leaf diseases, resulting in lower farmer revenue. To address this, early and precise detection methods are crucial. Sunflower, a vital commercial crop in India for edible oil production, faces issues like leaf blight, downy mildew, powdery mildew, and leaf spot. Our research aims to create an algorithm that effectively identifies these diseases using hybrid feature extraction techniques. We compiled sunflower leaf images from village databases and farm visits. Initially, color images were converted to grayscale, and the noise was reduced using Gaussian filtering during image pre-processing. Disease-affected areas were segmented using edge-based approaches. Hybrid feature extraction was then employed to encompass color and texture-related attributes. The K-Nearest Neighbors (KNN) algorithm facilitated disease classification. The proposed algorithm’s performance was benchmarked against SVM, RF and DT classifiers. Remarkably, our algorithm achieved exceptional accuracy: 98% for leaf blight, 97.3% for downy mildew, 95% for powdery mildew, and 96.5% for leaf spot detection. These results underscore the algorithm’s effectiveness in combating plant diseases and enhancing agricultural productivity.

A new adaptive identification strategy of best crop management with farmers

Identification of best performing fertilizer practices with on-farm trials is challenging, in particular in rainfed farming due to weather uncertainty. However, it remains crucial to test a range of viable practices to ascertain their performances, given that they are not known beforehand. This process also involves the testing of practices that could potentially yield inferior results in comparison to the best available practice(s). To identify a best management practice, an “intuitive strategy” typically sets up multi-year, multi-location field trials, wherein each practice is tested in a proportionally equal manner over a set number of years. Our objective was to provide an identification strategy for nitrogen fertilizer management designing a bandit learning algorithm. We aimed for the bandit algorithm to be better at minimizing farmers’ losses occurring from the testing of management practices that do not perform best, compared with the “intuitive strategy” that was formulized as the Explore-Then-Commit strategy. Our case study was for maize production in southern Mali. Bandit framework is a machine learning approach in which an agent learns from the feedback over time and accordingly selects actions in order to maximize its cumulative reward in the long term. To mimic the maize responses to nitrogen fertilization, we used the Decision Support System for Agrotechnology Transfer (DSSAT) crop model. We compared nitrogen fertilizer practices using a risk-aware measure, the Conditional Value-at-Risk (CVaR), and a novel agronomic metric, the Yield Excess (YE). The YE accounts for both grain yield and agronomic nitrogen use efficiency. The bandit algorithm performed better than the intuitive strategy: it minimized farmers’ yield losses during the identification process. This study is a methodological step which opens up new horizons for risk-aware identification of the performance of a range of crop management practices in real conditions.

Aqueous exfoliation and dispersion of monolayer and bilayer graphene from graphite using sulfated cellulose nanofibrils.

Amphiphilic sulfated cellulose nanofibrils were synthesized with yields in excess of 99% by sulfation of dissolving pulp cellulose using chlorosulfonic acid in anhydrous N,N-dimethyl formamide followed by high-speed blending. The sulfation level was stoichiometrically tunable to between 1.48 and 2.23 mmol g-1. The optimized SCNF demonstrated the ability to act as an effective dispersant for graphene produced via exfoliation in aqueous media, allowing for the production of aqueous stabilized graphene with 3.9 ± 0.3 wt% graphite to graphene conversion and suspended solids comprised of 19.5 ± 1.5 wt% graphene. Graphene exfoliated with SCNF was observed to consist exclusively of mono- and bilayers, with 42% of sheets being monolayer. Furthermore, it was demonstrated that SCNF defibrillation and graphene exfoliation could be combined into a single one-pot process.

Productivity and water saving of ‘Fortune’ plum under different water regimes

This study was conducted over four consecutive years (2015-2018) in the Sefrou region of Morocco, between Sais and the Middle Atlas Mountains. The goal of the study was to assess how plum trees respond to three different irrigation strategies: a normal supply of water (T2) to meet 100% of crop water needs; an irrigation deficit (T1) that provides only 75% of the water needs; and an additional water supply of 25% (T3) above the crop needs. The study found that deficient irrigation (T1) had no significant effect on plum yield or average fruit weight at harvest, but an excess water supply of 25% (T3) over the requirements (T2) resulted in higher yields and average fruit weight than the control. T3 also showed an increase in fruit size at harvest compared to the control, but not in T1 compared to T2. However, the excess water input for T3 did not justify the excess yield in terms of water use efficiency (WUE). On the other hand, T1 maintained the same level of production as the control while saving water, which resulted in a higher WUE compared to T2 and T3..

Heat transfer intensification in compact tubular reactors with cellular internals: A pilot-scale assessment of highly conductive packed-POCS with skin applied to the Fischer-Tropsch synthesis

Heat management poses severe constraints when designing non-adiabatic multi-tubular packed-bed reactors for strongly exothermic or endothermic catalytic processes. The exploitation of conduction in the solid matrix of engineered continuous internals (e.g., honeycomb monoliths, open-cell foams, periodic open-cell structures) as a heat transfer mechanism alternative, or possibly additional, to fluid-phase convection, is a promising strategy to relax some of these constraints, offering new opportunities for the intensification of catalytic reactors. Preliminary experimental data and modelling studies show that this is particularly true for compact-scale applications, when conductive internals are packed with catalyst micro-pellets. In this work, through pilot-scale testing, we show that overall heat transfer coefficients as high as 1300 W/m2/K can be achieved in periodic open-cell structures (POCS) made of a highly conductive aluminium alloy, 3D printed with an external continuous skin and packed with 300–400 μm catalyst micro-pellets. To this aim, a Fischer-Tropsch experimental campaign has been carried out in a pilot-scale rig, using an established 20 wt% Co/Al2O3 catalyst formulation and a tubular reactor (28.80 mm I.D., 20 cm catalyst bed length) externally cooled with an isothermal diathermic oil. Thanks to the outstanding heat transfer properties of the packed-POCS reactor, by progressively increasing the oil temperature from 180 °C to 225 °C, once-through CO conversions as high as 70 % have been measured at gas hourly space velocities exceeding 4000 cm3(STP)/h/gcat, resulting in C5+ yields in excess of 0.35 g/h/gcat, with a CH4 selectivity always below 15 %. Such performances, made possible by the intensified heat management granted by the adopted reactor internals, are among the best ever reported for a compact-scale Fischer-Tropsch tubular reactor.

Climate-Resilient Crops for a Sustainable Future: The Promising Case of Minor Millets in Tamil Nadu Irrigated Modernization Project (TNIAMP)

This study integrated continuous data on the impact of the area and yield of minor millets in the sub-basins of Tamil Nadu and correlated it with the area and yield of minor millets in the sub-basins cultivated under the TNIAMProject. In this study, minor millet crops such as foxtail millet, ragi, finger millet, and varagu were introduced in fourteen sub-basins and their yield was carefully collected. This included all parts of Tamil Nadu. This study investigated the suitability of different sub-basins for crop diversification by exploring matching management practices with respective yield potentials. In this study, it was recorded that the yield was more than 3000 kg per acre in the sub-basins of Nagarai River, Lower Vellaru, Pambar River, Krishnagiri, Lower Bhavani, Varaha River, Cauvery River, and Lower Tamirabarani. This has also increased the area under cultivation in these sub-basins. The study found that the area and yield of minor millets in the sub-basins of Tamil Nadu have increased significantly under the TNIAMProject. This is attributed to the input subsidy and technological interventions provided under the project. The study recommends that the excess yield of minor millets caused by the TNIAMProject should be converted into value-added products and documented for sale in the respective areas. This will help to increase the income of farmers and promote the cultivation of minor millets.

The use of triticale in feed production

The results of growing new varieties of winter triticale in order to obtain herbage and grain are presented. The effectiveness of the use of triticale in fodder production, in particular, as part of complete mixed fodders when growing young fattening pigs on the materials of the Bryansk region and using it in a green forage chain when growing cattle is substantiated. The research was conducted in the Bryansk region in 2021, 2022. The superiority of triticale in terms of the main parameters in comparison with traditionally cultivated crops: rye and wheat has been proven. The combination of high yield and protein content allows increasing the yield per unit area of more valuable grain. The protein content in the grain of the rye variety Pukhovchanka was 12,4%, in the grain of the triticale variety Forte – 15,2%, and in the grain of the wheat variety Vladi – 14,1%, which indicates the highest protein content of triticale grain in comparison with the most common crops. The best results were obtained on the cultivation of the triticale variety Forte using mineral fertilizers in the amount of N120P130K130, in which the grain yield averaged 91,4 centners per hectare over two years, the excess yield of wheat variety Vladi was 7,6 centners per hectare. The increase in the yield of triticale was due to the combination of rye with many ears and wheat with many flowers which ensured an increase in the mass of grain per ear. With a slight decrease in the density of the stem stand in the crops of triticale, its yield significantly exceeded other studied crops of the variety. When cultivating triticale for green fodder of the Elephant variety, the yield was 407,1 c/ha, which is 106,8 c/ha higher than the yield of the Pukhovchanka variety. The technological ripeness of triticale comes 7 days later than that of rye, so this crop fits well into the green forage chain. Due to high resistance to the most common and harmful diseases such as brown and stem rust, powdery mildew, green fodder triticale during the period of technological ripeness retains consumer qualities at a high level.

Simple synthesis of the novel Cu-CYA coordination polymer and its application as a green and recoverable catalyst for the asymmetric Hantzsch synthesis of polyhydroquinoline derivatives

This study designed and fabricated a novel, Cu-containing coordination polymer system via a hydrothermal reaction of copper salt with cyanuric acid as a tridentate ligand. The prepared coordination polymer was investigated by XRD, BET, SEM, EDS, FT-IR, and X-ray mapping techniques. The prepared Cu-CYA coordination polymer exhibits good catalytic activity in the synthesis of polyhydroquinolines under gentle reaction conditions in short reaction times. Furthermore, this nanostructure afforded a few benefits, which include excessive yields, short reaction times, stability, easy methodology, easy workup, and greener situations. Furthermore, the activity of the recycled catalyst was examined for at least five cycles with a negligible loss of its activity.

Evolutionary analysis of the adaptive potential and productivity of winter wheat varieties in the Non-Chernozem zone of the Russian Federation

The article considers long-term studies (2013-2022), the purpose of which is to carry out an evolutionary assessment of the parameters of adaptability and productivity of winter soft wheat varieties created over the last twenty years that have undergone a variety change in the conditions of the Ryazan region and determine the vector of their selection change according to these parameters. As an object of research, 11 varieties related to the last stages of breeding work were used. It was revealed that modern varieties are superior in yield to varieties of earlier selection, regardless of external environmental conditions, and have the highest adaptability in the conditions of the region. Varieties released in the period 2013-2023 and being varieties of the modern generation (VI period), have an excess yield of 14.3% (0.8 t/ha), in comparison with the varieties of the previous selection of 2000-2011. (V period). Intervarietal yield variation reaches 15.7-16.5%, making a difference of 0.85-0.96 t/ha in favor of modern varieties. The limit of the minimum (by 21.3%) and maximum (by 10.7%) yields is higher for new varieties. According to the obtained maximum yield (more than 9.50 t/ha), varieties Galateya and Boyarka stood out. Varieties of the modern generation have a significant advantage: in realizing the yield potential (by 16.8%) and its smaller variation (by 1.7%) over the years of research; in terms of adaptability to the region of cultivation and manifested environmental stress factors, manifested in an increase in the index of variety stability (IS = 2.3), an indicator of the level of variety stability (VSS = 147.9%), adaptability coefficient (C.A.> 1.0) and evenness coefficient (B=71.2%). Winter wheat varieties of the new generation Viola, Danae, Felicia, Galateya, Anfisa, Boyarka and Ivita are presented as more productive and adaptive to the conditions of the region.

Monetary policy shocks and resource misallocations in the Periphery: Evidence from Chinese provincial bond yields

We examine the effects of monetary expansions in the center on the excess yields of government bonds in the periphery. We show that the excess yields widen, and the widening is larger, the larger the misallocation of resources in the periphery. Specifically, we examine a panel of over 2500 local Chinese government bonds in 31 provinces, and find that the expansion of Chinese money supply surprisingly raises the excess yields of local bonds over Chinese sovereign bonds, and the gap is larger, the higher the degree of misallocation or other institutional failures in the province. By treating Chinese provinces as small emerging market open economies, we can draw implications for periphery countries in a common currency area, of an expansion in money supply in the center. Our results suggest that the increase in global liquidity post the 2009 and Covid-19 crises can lead to future fragility in the periphery countries.

Efficiency of distributed application of nitrogen on onion (<i>Allium cepa</i> L.) cultivated as an annual crop

Relevance. Onions in Russia in 2021: Cultivation area – 56.3 thousand hectares; Productivity – 28.6 t/ha; Production – 1608.6 thousand tons; Import from the volume of consumption – 10.7%. Modern varieties and hybrids and plant protection products make it possible to obtain high yields in the conditions of the Non-chernozem zone. The aim of the research is to optimize the parameters and terms of technological operations for the cultivation of onion in an annual crop on alluvial meadow soils of the Non-Chernozem Zone.Materials and methods. The nutrition system of onion plants was tested through distributed nitrogen application during the growing season: Option 1 – (N160P160K160) presowing – (Ca40N10 + K40N20 + K40N20) during the growing season; Option 2 – (N110P110K110) presowing + (Ca40N20 + K40N40 + K40N40) during the growing season. Experience in the use of the microbiological preparation Bisolbi-Plant (Bacillus pumilis) BIS88 together with the 1% humic preparation "Rostok" at a rate of one liter per hectare each to stimulate active growth.Results. At the end of the growing season in the second variant of the nitrogen experiment, the growing season was extended by 7-10 days. The excess yield under the second option for 2021-22 years of research amounted to more than 20.0 t/ha and is significant. The difference in the options for applying the Bisolbi-Plant preparation in 2.8 t/ha with HCP05 – 8.2 t/ha was not significant. The advantage of the variant with the biological preparation is higher plant density by 71.0 thousand units/ha and the absence of signs of bacteriosis. Thus, the distributed application of nitrogen (N110P110K110) presowing + (Ca40N20 + K40N40 + K40N40) during the growing season with irrigation water was significantly more effective than (N160P160K160) presowing + (Ca40N20 + K40N20 + K40N20) during the growing season. There was a tendency to increase the yield and quality of products with the double application of Bisolbi-Plant (BIS88) at a rate of (1.0 + 1.0) l/ha.

Measurements of dielectron production in Au+Au collisions at sNN=27 , 39, and 62.4 GeV from the STAR experiment

We report systematic measurements of dielectron (e+e−) invariant-mass Mee spectra at midrapidity in Au+Au collisions at sNN = 27, 39, and 62.4 GeV taken with the STAR detector at the Relativistic Heavy Ion Collider. For all energies studied, a significant excess yield of dielectrons is observed in the low-mass region (0.40<Mee<0.75 MeV/c2) compared to hadronic cocktail simulations at freeze-out. Models that include an in-medium broadening of the ρ-meson spectral function consistently describe the observed excess. In addition, we report acceptance-corrected dielectron-excess spectra for Au+Au collisions at midrapidity (|yee|< 1) in the 0–80% centrality bin for each collision energy. The integrated excess yields for 0.4<Mee<0.75GeV/c2, normalized by the charged particle multiplicity at midrapidity, are compared with previously published measurements for Au+Au at sNN1 = 19.6 and 200 GeV. Models that include an in-medium broadening of the ρ-meson spectral function consistently describe the observed excess. The normalized excess yields in the low-mass region show no significant collision energy dependence. The data, however, are consistent with model calculations that demonstrate a modest energy dependence.Received 27 February 2023Accepted 4 May 2023DOI:https://doi.org/10.1103/PhysRevC.107.L061901©2023 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasParticle & resonance productionRelativistic heavy-ion collisionsNuclear Physics

Value-added synthesized acidic polymer nanocomposite with waste chicken eggshell: A novel metal-free and heterogeneous catalyst for Mannich and hantzsch cascade reactions from alcohols

The removal of metals from chemical reactions has raised growing concerns for conserving natural resources and environmental safety. Therefore, it is necessary to expand simple procedures that use eco-friendly materials with high elimination capacities. In this paper, we have synthesized a new nanocomposite material in which eggshell membranes act as nucleation sites for CoFe2O4 nanoparticle precipitation in the attendance of an external magnetic field. In the next step anchoring a chlorosulfonic acid on the surface of eggshell‐coated magnetic nanoparticles as solid waste was transformed into a magnetic biomaterial, green, cheap, and environmentally friendly catalyst (CoFe2O4@Eggshell@SO3H). Techniques such as FT-IR, VSM, FESEM, TEM, EDX, XRD, and TGA were used to characterize the as-synthesized catalyst. The catalytic property of the as-prepared catalyst was examined in the synthesis of 2,4,6-triarylpyridine, β-aminocarbonyl, and 2-amino-4,6-diphenylnicotinonitrile via alcohol-based oxidation. Excessive yield, quick reaction time, solvent-free condition, waste to wealth, and optimization with the layout of the experiment are the important advantages of the present work. Taken collectively, these results offer the conversion of wastage to fortune products around the world and utilization in organic metamorphosis.

Initial electromagnetic field dependence of photon-induced production in isobaric collisions at STAR

In these proceedings, we present the measurements of e+e− pair production at very low transverse momentum in 4496Ru + 4496Ru and 4096Zr + 4096Zr collisions at √SNN = 200 GeV by the STAR experiment. The electromagnetic field dependence of photon-induced production is studied for the first time, via comparisons between the measurements in isobaric collisions to the published results in Au+Au and U+U collisions. Taken the initial electromagnetic field dependence into account, the excess yield of e+e− pair production shows an impact parameter dependence. The results are also compared to model calculations based on EPA-QED, which describe the observed excess yields for different collision species.

High molar activity [18F]tetrafluoroborate synthesis for sodium iodide symporter imaging by PET

BackgroundSodium iodide symporter (NIS) imaging by positron emission tomography (PET) is gaining traction in nuclear medicine, with an increasing number of human studies being published using fluorine-18 radiolabelled tetrafluoroborate ([18F]TFB). Clinical success of any radiotracer relies heavily on its accessibility, which in turn depends on the availability of robust radiolabelling procedures providing a radiotracer in large quantities and of high radiopharmaceutical quality.ResultsHere we publish an improved radiolabelling method and quality control procedures for high molar activity [18F]TFB. The use of ammonium hydroxide for [18F]fluoride elution, commercially available boron trifluoride-methanol complex dissolved in acetonitrile as precursor and removal of unreacted [18F]fluoride on Florisil solid-phase extraction cartridges resulted in the reliable production of [18F]TFB on SYNTHRA and TRACERLAB FXFN automated synthesizers with radiochemical yields in excess of 30%, radiochemical purities in excess of 98% and molar activities in the range of 34–217 GBq/µmol at the end of synthesis. PET scanning of a mouse lung tumour model carrying a NIS reporter gene rendered images of high quality and improved sensitivity.ConclusionsA novel automated radiosynthesis procedure for [18F]tetrafluoroborate has been developed that provides the radiotracer with high molar activity, suitable for preclinical imaging of NIS reporter gene.

Additional dislocation slip determined excess yield stress in titanium

The excess yield stress induced slip system variations at the early stage of plastic deformation in Ti was in-depth studied. As a common sense, both the normal grain refinement according to the Hall-Petch relationship and the suppressed dislocation source activation in refined-grain can extensively increase the yield stress. In this study, combined calculations of Schmid factor and critical resolved shear stress suggest that small-grain samples with much higher yield stress could incorporate both <a>-prismatic slip and <c+a>-pyramidal slip, while only <a>-prismatic slip can be activated in the large-grain counterparts. This slip system transition can explain the abnormal fine-grain strengthening effect, which the experimental yield stress of small-grain sample deviates from the value that predicted by using Hall-Petch relationship, as well as the stress drop right after yielding in Ti. These findings could also provide a new strategy for designing high-strength metallic materials.

THE INFLUENCE OF THE COMPLEX SYSTEM OF APPLICATION OF PREPARATIONS OF BACTERIAL ORIGIN FOR THE GROWING OF SWEET PEPPER IN THE CONDITIONS OF THE RIGHT-RIDE-RIVER WOODSTEP

In order to study the impact of a comprehensive system of drugs of bacterial origin, the company BTU-Center monitored biometric indicators and productivity of sweet pepper in the open ground of the Right Bank forest-steppe of Ukraine. The early-ripening variety of sweet pepper Aphrodite was used for research. Organic cultivation technology was used in the experiment. Dosing of biological products was carried out according to the manufacturer's recommendations, and the dose of drugs was doubled. Biometric parameters varied depending on the dose of biological products. During the growing season, the height of the plants of the control variant was 32.1 cm, but with the use of the recommended dose of biological products, the height of the plant was 35.3 cm, which is 3.2 cm higher than the control variant. The use of a double dose of biological products provided the highest rates of plant height. The larger diameter of the stem was obtained by applying a double dose of biological products - 8.5 mm. As a result of the use of biological products, the stem diameter exceeded the control variant by 0.8 and 0.9 mm, respectively. In studies, the fruits in all respects corresponded to the technical characteristics of the variety, but their weight was variable. The highest average fruit weight was characterized by plants using a double dose of biological products - 138.9 g. The study indicators exceeded the fruit weight of the control variant by 9.1 and 10.4%. The highest average yield was obtained with a double dose of biological products - 26.4 t / ha. In these variants, the excess yield relative to control was 9.3 and 11%, respectively. As a result of the application of the recommended dose of biological products, the stability of Lewis was - 1.18, and with the use of a double dose - 1.16. The use of organic technology in open ground significantly improves the biometric performance of sweet pepper plants. The use of organic cultivation technology increases the number of fruits per plant, but doubling the dose of biological products does not give a significant advantage over the recommended application rates.