bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of the effect of using electrical stimulation on the increase of potato yield
Authors: Mukhammadiev A , Sanbetova A T , Toshpulatov N , Babayev A , Abdukadirova M 
Published: March 2023

Abstract
Several studies have shown that electric stimulation improves germination, root growth, and disease resistance. Nonetheless, there is a scarcity of research on the effect of electric treatment on plant growth characteristics and quality. We investigated the effect of electric fields on three potato varieties (Santé, Quvonch-1650M, and Bahro-30), and also to confirm the results, seeds of the same variety were planted with and without electrical stimulation in the second experiment. Seed tubers were electrically stimulated during this study using hand-held equipment equipped with two ultraviolet emitters and an antenna (low-frequency radio impulse bio-stimulation). Studies have shown that pre-planting electrical stimulation of plants accelerates emergence of shoots of plants for 3-4 days depending on a grade. In addition, use of electrical stimulation had a positive effect on the growth of the plant. All studied varieties were taller by 4-5 cm and multi-stemmed, and 12-20 flowers were formed on one stem, which is 2-2.5 times more than in the control. In the second study stimulated each bush (one seed) gave an average of 813 grams, while 398 grams was observed in the control group. Conducted visual counts and serological analyzes showed that electrical stimulation of plants contributes not only to the reduction of infestation plants with viral diseases, but also the manifestation of symptoms of damage. The Kuvonch-1656M, in the studied variant, were affected by diseases 12%, while in the control variant this figure was 16%. Hidden virus infection of plants was 26% and 31%, respectively.
Influence of cultivation of secondary mung bean, soybean and oat crops on cotton yield and soil structure by different methods of tillage after winter wheat
Authors: Kholto’raev Sh Ch , Karimov Sh A , Iminov A , Kocharova M I 
Published: March 2023

Abstract
This article provides information on the results of scientific research aimed at maintaining and increasing soil fertility in the country and in the world today, as well as ways to increase it, as well as the impact of organic fertilizers on soil fertility. The article presents evidence-based data on the study of the effect of soybean, mung bean and oat sowing in different ways with deep, medium and shallow tillage after harvesting winter wheat in conditions prone to wind erosion with low fertility, on the mechanical composition of light irrigated meadow saz, slightly saline soils for the number of bacteria accumulating nitrogen in the roots of legumes and root crop residues macroaggregates in the soil between the options increased by 0.1-10%, soil porosity by 0.6-1.5, humus content by 0.001-0.004%, total nitrogen by 0.005%, the content of nitrate nitrogen by 0.1-3.6 mg/kg. In the variants with row crops of soybean and mung bean after tillage to a depth of 30 cm after winter wheat, the yield of mung bean grain was 16.5 c/ha, and soybean 18.8 c/ha, where the mung bean yield was higher by 2.1 c/ha, and soybeans by 2.5 c/ha compared with chisel treatment to an average depth of 22-24 cm. tillage to a depth of 14-16 cm using a cultivator. With ordinary sowing, mung bean achieved a profitability of 48.1%, and soybeans 52.7%. When growing cotton next year against the background of row sowing of repeated crops of mung bean and soybeans with a plow to a depth of 30 cm after harvesting winter wheat, the yield from cotton sown after mung bean was 33.4 centners / ha, and after soybeans 34.2 centners / ha and the level of profitability increased by 39.5%.
The effect of organic fertilizer application in growing amarant (amaranthus) plant
Authors: Chorshanbiyev U Y , Allanov Kh K , Safaraliyev L H , Berdiboev E Y 
Published: March 2023

Abstract
The world’s population is increasing by an average of 80 million people per year, in 2025 there will be 8 billion people on the planet. The population of the Republic of Uzbekistan is increasing by 650-670 thousand people per year, it will reach 47 million by 2026. This research was aimed at developing a scientifically based system of organic fertilizers in the cultivation of ecologically clean high-grain crops from white and red amaranth varieties of the amaranth plant in the organic farming method. The results showed that According to the results of the phenological observation of the plants, the germination of white amaranth in the control (without fertilizer) option was 82.4%, and it was determined that it was 95.1% in the option of applying 5.0 tons of biohumus per hectare, and 90.9% in the option of applying 20.0 tons of organic fertilizer (manure) per hectare.
Study on the effect of cotton fiber temperature on cleaning effects
Authors: Utashov Z , Usmonkulov A , Djamolov R , Egamberdiyev F 
Published: March 2023

Abstract
This article presents the results of research on increasing the cleaning efficiency of cotton by heating. As a result, the cleaning efficiency decreased with increasing equipment productivity. However, in the IV-industrial variety with high moisture content of cotton, the temperature of the cotton fiber was 30 when the working productivity increased to 6000 kg/h. Cleaning efficiency at 32°S was found to have reached 45.3%, indicating that the air temperature was 110 which corresponds to 130°S.
Influence of the amount and fineness of grinding of ammonium sulfate on the properties of sulfate-containing urea
Authors: Saydullayev A , Namazov Sh , Mirsalimova S , Usanbaev N , Temirov U 
Published: March 2023

Abstract
The objective of this work is to determine the optimal technological mode for obtaining sulfated urea with a balanced content of nitrogen and sulfur by adding ammonium sulfate to the urea melt before granulation. The article presents the results of a study of the dependence of the properties of sulfated urea on the degree of grinding and on the amount of ammonium sulfate, expressed by the mass ratio of CO (NH2)2: (NH4)2SO4 = 100 : (2.5-50). Methods for obtaining, granulating and studying the properties of sulfated urea samples are presented. In fertilizers obtained with the addition of ammonium sulfate to the urea melt at the studied ratios, the strength of the granules increases from the initial 2,53 to 4,80 MPa, the gyroscopic point decreases from 58,4% to 52,3. It was also revealed that when ammonium sulfate is added to the urea melt, the density and viscosity of the melt increase with an increase in the amount of ammonium sulfate introduced. At 135 ° C, an increase in the addition of ammonium sulfate from 2,5 to 50,0 mass parts per 100 mass parts of urea leads to an increase in density from 1,162 to 1,412 g/cm3, viscosity from 2,56 to 7,91 cΠɜ. It was found that the smaller the particle size of ammonium sulfate, the higher the strength of the urea granules. With a decrease in the dispersion of ammonium sulfate particles from 0,25 to 0,04 mm, the strength of sulfated urea granules increases, the presence of ammonium sulfate in the composition of urea reduces the dissolution rate, which makes it possible to prolong their action, in addition, it lowers the pH of the product, which prevents the release of ammonia during storage and transportation sulfated urea.
Study on the effect of wheat yellow rust disease on grain yield
Authors: Gulmurodov R A 
Published: March 2023

Abstract
Wheat provides food for 40 percent of the world’s population. As of July 2022, 770.3 million tons of wheat grains were grown in the countries of the world. In recent years, as a result of climate change, rainfall in some countries is low or in some countries it is high, as a result of which various diseases appear, affecting wheat harvest as well as all agricultural crops. Wheat is affected by several fungal diseases and causes damage to the crop, among these diseases yellow rust kills a large part of the wheat crop. The article presents information on the effect of yellow rust disease on the crop and the effect of several fungicides against it.
Application of audio analysis in cultivated insect farms in Uzbekistan
Authors: Mikhaylov D M , Iskandarov Z S , Grudovich E V , Rakovec I R I , Shazhaev Sh , Emam H G I , Rybak A K 
Published: March 2023

Abstract
Despite the merits of setting up farms to grow cultivated insects, the dramatic climate change on the planet creates some barriers to the successful maintenance of such farms and their distribution. This article discusses a method for increasing the productivity of cultivated insect farms by introducing an audio and video analysis system using artificial intelligence technologies. The prospects for the introduction of systems on farms of cultivated insects are disclosed in order to minimize the effects of adverse environmental conditions on insects, as well as to reduce production costs by minimizing the use of manual labor on the farm. The results showed that the impact of external factors on individuals of crickets Acheta Domesticus directly affects their stridulation and makes it possible to identify and timely eliminate the impact of adverse environmental conditions. It must be answered that it is critically important in the analysis of cricket stridulations to take into account such factors as: the circadian rhythm and the time of mass eating of food by crickets in the morning.
Study on the process of producing sodium percarbonate
Authors: Erkaeva N , Kaipbergenov A , Erkaev A , Kucharov B 
Published: March 2023

Abstract
To increase the washing efficiency and more completely remove stained impurities, chemical bleaches are introduced into the composition of SD (synthetic detergents), the most common of which are peroxide salts - sodium peroxocarbonate (percarbonate) and sodium peroxoborate (perborate).The theoretical substantiation of the process of interaction of sodium carbonate and hydrogen peroxide in the three-component reciprocal system Na2CO3-H2O2-H2O by the visual-polythermal and isothermal method at 10 and 30°C is carried out. The formation of new compounds of the compositions: Na2CO3•1,5H2O2, Na2CO3•H2O•2H2O2 and Na2CO3•2H2O2 was established, for which the concentration limits of existence were determined. New compounds are identified by chemical and physico-chemical analysis methods.
Study on the effect of the green manure application on soil fertility
Authors: Kenjaev Yu , Davronova F P 
Published: March 2023

Abstract
The natural soil and climatic conditions of green manure crops are taken into account. It is important to choose the types suitable for growing them for different purposes (as a main, repeated crop, animal feed, mulching), to increase the yield and quality of green manure crops, to achieve high green biomass by using optimal seeding periods and rootstock thicknesses. One of the urgent tasks is to carry out research in the priority areas such as increasing the soil fertility and cotton yield by crushing the cultivated green biomass and spreading it evenly on the field, plowing it into the soil at different times and depths. In order to increase soil fertility, the use of pure bean and colza and their mixtures as green manure has increased. The percentage of macroaggregates in the driving layer before the first irrigation increased by 13.0–13.45% compared to the control, and by 16.55–17.4% before the last irrigation. As a result, the volume mass of the soil is reduced to 0.02-0.04 g/cm3, and the amount of nitrogen, phosphorus (P2O5) and exchangeable potassium (K2O) in the form of ammonium (N-NH4) and nitrate (N-NO3) in the soil is lower than in the control-green manure and caused a slight increase compared to the option.
Bioactive Compounds and Antioxidant Activity of Tropical Red Algae Gracilaria sp. from Bintan Island, Indonesia
Authors: Hidayati JR , Karlina I , Ningsih DPN , Wijaya A , Bahry MS 
Published: March 2023

AbstractMacroalgae that grow in the tropics are continuously exposed to ultraviolet radiation and sunlight. Macroalgae have self-defense to avoid damage caused by ultraviolet radiation by carrying out secondary metabolism and producing several bioactive compounds. The bioactive compounds produced have the potential to be utilized to inhibit free radicals that can cause degenerative diseases in humans. This research aims to identify bioactive compounds and determine the antioxidant activity, total phenolic compound, total flavonoid compound, and pigment content of red algaeGracilariasp. from Bintan island. This research has the novelty of the sampling location to be later developed into a sustainable resource in the pharmaceutical field.Gracilariasp. found in Bintan island was taken, dried in indirect sunlight, and macerated using universal solvent methanol. Phytochemical testing was conducted to determine the presence of flavonoids, steroids, triterpenoids, saponins, and tannins. Antioxidant activity was determined using DPPH as a free radical at the maximum wavelength of DPPH (515 nm) with an incubation time of 55 minutes. Total phenolic and flavonoid compounds were determined using standard solutions of gallic acid and quercetin, respectively. The results showed that the methanol extract ofGracilariasp. contains flavonoid and tannin compounds, has a chlorophyll-a content of 0.43 mg/g, a carotenoid content of 0.91 µmol/g, the total phenolic compound of 4.67 mg/GAE g, total flavonoid compound of 2.26 mg/QE g and has antioxidant activity with IC50value of 982.25 ppm. Utilization ofGracilariasp extract from Bintan waters as a pharmaceutical ingredient is expected to increase prospects and sustainable use in the pharmaceutical and health fields.
Optimization of Pb Adsorption from Seawater from Former Bauxite Mines Using Crab Shell Waste
Authors: Pardi Hilfi , Fitriyah Dina , Silitonga Friska Septiani , Edelwis Tri Widya , Fitri Annisa , Sari Martin Agustina 
Published: March 2023

AbstractCrab shell waste can cause pollution to the surrounding environment, but has the potential to be used as a biosorbent in the absorption of heavy metals, especially Pb because crab shells contain CaCO3 and chitin. Methods: Several variables that play a role in the biosorption process, among others: initial metal concentration, biosorbent mass, and contact time. Pb metal was determined by the Atomic Absorption Spectroscopy (AAS) method. Results: The results showed that the crab shell biosorbent contained Pb 0.019 mg/g. The concentration of Pb in the shell was used as a correction factor. Optimal result for parameter of initial concentration of Pb is 100 mg/L with efficiency percentage (99.11 ± 0.02)% and adsorption capacity (620.15 ± 0.3) ug/g. The optimal result of contact time is 120 minutes with efficiency percentage (91.22 ± 0.13)%. The optimal yield of biosorbent mass based on the percentage efficiency (98.01 ± 0.2)% is 2 grams. Conclusion: This study can show that crab shell waste can be used as an effective biosorbent for Pb metal adsorption. The results of the optimization of the best factors to be used in the biosorption process of Pb metal were the initial concentration of 100 mg/L, the mass of the biosorbent was 3 grams and the contact time was 110 minutes. The optimum conditions for Pb adsorption were successfully applied to seawater from the former bauxite mine.
Ecological Risk Assessment of Oil Spill in Seribu Islands Coastal Area (SICA)
Authors: Salim A 
Published: March 2023

Abstract
The Study of Ecological Risk Assessment (ERA) of oil spill in Seribu Islands Coastal Area (SICA) was done in Oil Company near Pertamina’s authorization mining territory. From the simulation of chance release model using fault tree analysis, the rate of chance release at 4.95 tons of particles of oil is acquired in an amount of 105.009 x 10
−7
. Supported by data on the oceanographic dynamics existing in the SICA which consist of climate, physical and chemistry characteristics are processed using Gnome Analysis was predicted. The final position of oil particle from oil company near Pertamina. From the simulation using Gnome for the locations of SICA at North of Jakarta, the endpoint of the spill for the simulation period is two months after the oil spill event in both. The results of the simulation of oil spills in part of SICA (East Karawang waters) where the location of the Pertamina Oil Refinery was leaked off the East Karawang coast showed the distribution of crude oil headed to the northwest and touched Bekasi Beach and Happy be achin the SICA in two months of observation. There are oceanographic dynamics and characteristics of oil spilled on 29 July 2019 in Karawang Waters provided information to coastal communities in both locations to give a negative perception of the impact of ecological risks. Nearly 85% of the Karawang coastal communities to the Thousand Islands border provide negative perspectives to the government, especially polluters, in this case Pertamina YYA-1 East Karawang.
Seabed morphology characterization for Indonesian cable-based tsunameter route in Cilacap Segment, Indonesia
Authors: Ardhyastuti S , Husein S , Muljawan D , Haryadi Y , Wiguna T , Febriawan H K , Putra A P , Tohari A , Marcino A R R I , Nugroho A B , Sudaryanto A 
Published: March 2023

Abstract
The Indonesian government has initiated a program for Ina Tsunami Early Warning System by the development of sea level monitoring systems including a Cable-Based Tsunameter. Seabed feature characterization is a critical part of the engineering design process as well as for the understanding of environmental impacts. This study aims to characterize the seabed morphology along the cable route plan at the Cilacap segment by analyzing the seafloor mapping and identifying of any existing hazards. A series of marine surveys for the data acquisition hydro-acoustic and geophysics was conducted by RV Baruna Jaya IV, in December 2020. The analysis and interpretation of seabed geomorphology were conducted using qualitative methods on four Blocks. Results indicate anthropogenic objects (debris, wreck, and scars), while the features of ripples, and pockmarks. Furthermore, sediment layers which are interpreted into four units from the top to bottom shows fine grained sediment towards the top. Finally, the hazard assessment denotes that there are three hazard categories (low, medium, and high), of which the highest category is located in the pockmark cluster (Block 4). The existing CBT cable route place is faced with geomorphological obstacles and environmental threats, so it’s recommended to change the route as far as 50meters.
Carrying capacity of mangrove environment for development of river cruise ecotourism in Pengudang, Bintan Island, Indonesia
Authors: Apdillah D , Wahyudin  , Razai T S , Chalet C , Suryanti A , Zulkarnaen Y , Azizah D 
Published: March 2023

Abstract
Mangrove ecotourism management requires information about the ability of the ecosystem to support the presence of tourists so that environmental damage due to human activities can be minimized. This study aims to analyze the suitability of Mangrove Ecotourism for River Cruise in Pengudang Village and recommend the carrying capacity of mangrove ecosystems for ecotourism. The study was conducted using a Geographic Information System approach, data was collected through a Criteria survey for ecotourism to explore rivers and analyzed using a weighting and assessment approach. The results showed that the Pengudang mangrove ecosystem was feasible to be developed for River Cruise ecotourism with a TSI value ranging from 64-75%. Cluster 3 has the largest TSI value of 75%. This is influenced by several parameters such as the density of mangroves and the diversity of mangrove species in the area which attracts visitors to conduct tourism and educational activities. The limiting parameters in River Cruise ecotourism activities in Pengudang are the width of the river and the depth of the river which can only be passed by boats under 5 GT. The carrying capacity or ability of the mangrove ecosystem to accommodate ecological tourism reaches a maximum of 106 people/day.
Target strength of seahorse (Hippocampus kuda) based on presence dorsal and ventral aspect of brood pouch: a experiment hydroacoustic using artificial neural network
Authors: Apdillah D , Jaya I , Manik H M , Hestirianoto T , Iqbal M , Agung M G , Mamun A 
Published: March 2023

Abstract
Hydroacoustic technology is a tool can be used to study the behavior of organisms. The target strength of an object is main key in hydroacoustic technology. The value of target strength is strongly influenced by level of hardness of object, in this case the seahorse has a different level of hardness between dorsal and ventral aspect. The unique of male seahorse that experiences pregnancy and keeps it’s baby in brood pouch until it hatches. This can be used as a difference between males and females based on value of target strength. Acoustic data recording using single beam scientific echosounder SIMRAD EK-15 and Sonar-4 processing software. The results showed that mean TS value of pregnant male seahorses (with brood pouch) was smaller than of female seahorses (without brood pouch), there were differences in structure composition and anatomy of the brood pouch which backscattering strength to decrease. The artificial neural network shows that there is a difference in response between seahorse (having a brood pouch/male) compared seahorse (without a brood pouch/female). The results showed that was a difference in dorsal aspect of 87.5% and ventral aspect of 98.6%. The results of this study can be used as key to distinguish sex of seahorses using the hydroacoustic method.
Biological aspects, exploitation rates, and spawning potential ratio of scalloped hammerhead shark (Sphyrna lewini Griffith & Smith, 1834) in Lampung Bay waters, Indonesia
Authors: Nugraha B , Samusamu A S , Puspasari R , Oktaviani D , Rachmawati R , Rachmawati P F , Sulaeman P S , Hartati S T , Wiadnyana N N 
Published: March 2023

Abstract
The scalloped hammerhead shark is an endangered species that is listed in CITES Appendix II. Information on the biological aspects, exploitation rate, and spawning potential ratio of scalloped hammerhead sharks are very limited, especially in Lampung Bay waters. These data were important to find solutions and the best management to sustain the scalloped hammerhead sharks in Indonesia, especially in Lampung Bay waters. The aim of this study is to investigate the biological aspects, exploitation rates, and spawning potential ratios of scalloped hammerhead sharks in Lampung water. Scalloped hammerhead shark samples were collected from the catch of bottom gillnet in Kalianda Fish Landing Place, Lampung Province. Enumerators collected biometric data (length and weight) of 332 scalloped hammerhead sharks from July to November 2020. Biological aspects include distribution of length, length-weight (L-W) relationships, length at first capture, and length at first maturity. The utilization rate was calculated using the exploitation rate (E) and the estimated SPR based on length data. The results show that the length of scalloped hammerhead sharks ranged from 37.5 to 173.0 cm FL. Most of the samples fish had not spawned yet or were immature (Lc
=47.1 cm FL; Lm
=89.4 cm FL). The growth pattern of scalloped hammerhead sharks was allometrically negative. Scalloped hammerhead sharks have natural mortality of 0.18/year, while fishing mortality was 1.08/year. The fishing status of scalloped hammerhead sharks in Lampung Bay was fully exploited (E=0.85), and the stocks were in a recruitment overfishing condition. These findings indicate that effective management is required to ensure the sustainability of scalloped hammerhead sharks in Lampung Bay waters, such as adjusting mesh size, fishing season, and avoiding capture in the nursery area.