High-quality Grain Research Articles

Genetic Variability, Character Association and Path Analysis for Yield and Yield Components in Foxtail Millet [Setaria italica (L.) P. Beauv.] Accessions under Multi Environments in Foothills of Nagaland

Background: Foxtail millet cultivation inIndia’s North Eastern Hill regionholds promise due to its adaptation to diverse environments and high-quality grain. The objective of this study was to assess the amount of variability present among the genotypes, association of traits and find out foxtail millet genotypes that produce high yield in diverse environments. Methods: The investigation was carried out during July 2022 to May 2023 in four different dates of sowing. Two environments maintained under rainfed condition and the remaining two environments are maintained under irrigated condition. The experiment was conducted in randomized complete block design with three replications in all environments. Result: Analysis of variance revealed statistically significant differences (at 5%) among the 30 genotypes for all yield variables under evaluation. Genotype ‘G1’ exhibited superior performance for both yield and yield-related traits. The present study revealed considerable genetic variation among the yield traits, with all traits demonstrating high heritability except for harvest index.Traits such as fodder yield per plant, panicle length, biological yield, flag leaf width, peduncle length, panicle width and grain yield per plant show high heritability coupled with high genetic advance. A strong correlation was observed between grain yield per plant and several traits including days to 50% flowering, days to maturity, plant height, panicle length, flag leaf length, peduncle length, biological yield and fodder yield per plant. This correlation was consistent at both the genotypic and phenotypic levels. Biological yield exhibited the strongest direct influence on grain yield per plant, followed by harvest index, flag leaf width and number of base tillers on genotypic and phenotypic levels.

453 Fluxes of greenhouse gases from pastures and methane emissions from beef cattle in Australia

Abstract The carbon footprint of beef cattle production may need to consider both the fluxes of greenhouse gases (GHG) of pasture ecosystems and cattle enteric emissions because these are the largest contributors to the carbon balance. The objective of the present study was to measure the fluxes of greenhouse gases from pastures and enteric methane (CH4) emissions from cattle throughout long periods of time under commercial conditions. The fluxes of CH4, carbon dioxide (CO2), and nitrous oxide (N2O) were measured throughout a period of 3 yr in multiple pasture types ranging from native to sown, and from temperate to summer pastures in New South Wales, Australia. A set of 8 dynamic chambers that automatically close for 10 min every 1.5 h were used for this purpose. The chambers measured the change in the concentration of GHG to allow for the estimation of emissions (positive flux) or sinks (negative flux). All data was then summarized to estimate daily fluxes and the global warming potential (CO2e) was calculated multiplying CH4 by 28 and N2O by 265. The final dataset contained 2,709 d of measurements across the 8 chambers. The GreenFeed system was used to measure CH4 production from cattle under varying conditions fed various diets throughout the same period. Cattle categories included weaners, heifers and steers, bulls and cows under both grazing or pen conditions. Cattle were fed a variety of diets ranging from low quality forages to high quality forages, grain supplementation, and grain-based diets. Data were averaged across many days for each animal and the final dataset contained 1,014 measurements. The CO2 flux from pastures ranged from -855 (uptake) to +339 kg CO2ּ ha-1ּ d-1 with a mean of -10.4 ± 2.19 kg CO2ּ ha-1ּ d-1. The minimum, mean and maximum CH4 fluxes were -192 (uptake), 0.015 ± 0.488, 434 g CH4 ּha-1ּ d-1, respectively, whereas NO2 values -146 (uptake), 17.1 ± 1.23, 1,293 g N2O ּ ha-1ּ d-1, respectively. These fluxes resulted in a GWP ranging from -855 (uptake), -5.83 ± 2.222, 445 kg CO2e ּha-1ּ d-1suggesting that pastures were on average a net sink of GHG throughout the present study. The CH4 production from cattle ranged from 43.6 to 404.6, with an average CH4 production of 192 ± 90.3 g CH4ּ animal-1ּ d-1, which is equivalent to 5.37 kg CO2eqּ animal-1ּ d-1. These results suggest that a hectare of livestock pastures offsets more than the CH4 produced by the average beef cattle in the present study. The fluxes of GHG from vegetation may need to be considered when estimating the contribution of livestock production to global warming.

The Effect of Tillage Systems and Weed Control Methods on Grain Yield and Gluten Protein Compositional and Content-Related Changes in Hybrid Bread Wheat

The use of simplified tillage systems and weed control methods using reduced herbicide doses in wheat production technology is one of the basic requirements of sustainable agriculture in terms of obtaining high-quality grain of this species. The aim of three-year field studies was to determine the yield and quality characteristics of hybrid wheat grain depending on two tillage systems (CT and RT) and four weed control methods: mechanical (M) and mechanical–chemical, using recommended herbicide doses (MH100) and doses reduced by 25 and 50% (MH75, MH50). A comparable grain yield, number of grains per spike, weight of one thousand wheat grains, and amount of gluten and ω gliadin subunits (GLI) were obtained in the RT and CT systems. The CT system increased protein content (by 15.2 g kg−1) and the increase in the sum of gluten protein fractions was higher for glutenins (GLU) and their LMW and HMW subunits (from 20.9 to 29.8%). The application of the method with the recommended herbicide dose (MH100), compared to M and MH50, resulted in an increase in grain yield by 0.89 and 1.04 t ha−1, respectively, as well as in the sum of GLI (by 8.4 and 12.3%) and GLU (by 13.7 and 25.3%). The application of the herbicide dose reduced by 25% (MH75) compared to the recommended dose (MH100), especially in the RT system, did not cause a significant decrease in protein content and the amount of GLI and GLU, while reducing grain yield (by 0.26 t ha−1) and the amount of gluten (by 3.1%).

Current Status and Countermeasures of High Quality Grain Industry in Hua County

Current Status and Countermeasures of High Quality Grain Industry in Hua County

On-farm evaluation of a crop forecast-based approach for season-specific nitrogen application in winter wheat

Inadequate nitrogen (N)-fertilisation practices, that fail to consider seasonally variable weather conditions and their impacts on crop yield potential and N-requirements, cause reduced crop N-use efficiency. As a result, both the ecological and economic sustainability of crop production systems are put at risk. The aim of this study was to develop a season-specific crop forecasting approach that allows for a targeted application of N in winter wheat while maintaining farm revenue compared to empirical N-fertilisation practices. The crop forecasts of this study were generated using the process-based crop model SSM in combination with state-of-the-art seasonal ensemble weather forecasts (SEAS5) for the case study region of Eastern Austria. Results from three winter wheat on-farm experiments showed a significant reduction in applied N when implementing a crop forecast-based N-application approach (-43.33 kgN ha-1, -23.42%) compared to empirical N-application approaches, without compromising revenue from high-quality grain sales. The benefit of this reduced N-application approach was quantified through the economic return to applied N (ERAN). While maintaining revenue, the lower amounts of applied N led to significant benefits of + 30.22% (+ 2.20 € kgN-1) in ERAN.

Influence of sowing dates and fertilisation on yield and quality of winter wheat grain

New wheat varieties exhibit a high adaptive potential for productivity. The question of improving cultivation technologies, specifically sowing dates, optimised fertilisation systems, and micronutrient application, remains relevant to fully realise the genetic potential of these varieties under specific soil and climatic conditions. The aim of this study was to determine the influence of sowing dates, fertilisation, and foliar application of micronutrients on the yield and quality parameters of winter wheat grown in the Western Forest-Steppe zone. A field experiment was conducted on grey forest surface-gleyed soils during 2021-2023. The study evaluated the yield formation parameters and quality indicators of the winter wheat varieties Estafeta myronivska, Dovira odeska, and Akhim under sowing dates of 20 September, 5 October, and 20 October. It was determined that the yield and grain quality of the studied wheat varieties varied under the influence of sowing dates, fertilisation, and foliar micronutrient application. Sowing winter wheat on 5 October resulted in the highest yields over the years of the study: on average, 5.29 t/ha for the Estafeta myronivska, 4.78 t/ha for Dovira odeska, and 5.05 t/ha for Akhim. The highest productivity (5.83 t/ ha) was achieved by sowing Estafeta myronivska with N120P90K90 fertilisation and foliar application of the Aidamin complex. Across all wheat varieties, protein content, gluten content, and vitreousness increased from the earliest to the latest sowing dates. The findings of this study can be applied to enhance the productivity of winter wheat agroecosystems and produce high-quality grain under production conditions

Evolution of the spatiotemporal pattern of China's grain production in the past 20 years and its driving mechanism.

Food security is a goal and means of global sustainable development, and an important component of China's national security. Based on grain production data from 2000 to 2020, 31 provinces (cities, autonomous regions) in China were used as research units to analyze the spatiotemporal differences and driving forces of grain production in China using a combination of local correlation index, center of gravity transfer model, and geographic detector. The results as follows, ① During the research period, China's total grain production showed a decrease followed by an increase, and the yield per unit area of grain showed an increasing trend. Corn has become the "largest staple food" in China; ② During the research period, the focus of China's grain production continued to shift northward, with Heilongjiang, Henan and Shandong provinces becoming the main grain production areas, with Henan being the province where China's grain production center was located. Among the factors affecting grain yield, the effective irrigation area (0.971) has the strongest explanatory power. Finally, countermeasures and suggestions were proposed from five aspects, stabilizing grain production, reducing grain inventory pressure, implementing regional grain security responsibilities, improving grain circulation efficiency, promoting high-quality grain engineering construction, adjusting grain production structure, strictly implementing farmland protection responsibilities, scientifically applying pesticides, fertilizers and other production materials, emphasizing agricultural infrastructure construction and stabilizing the number of agricultural labor force.

Improving the technology of spelled cultivation in the central part of the North Caucasus conditions

The purpose of the study. The main goal of the research was the optimization of technological methods for the cultivation of promising spelled varieties in the conditions of the Central part of the North Caucasus. Spelled is a grain crop with high quality indicators. Research methods for studying spelled varieties were carried out in 2020–2022 on the experimental field of the Kabardino-Balkaria Republic at the University of Kabardino-Balkaria State Agrarian University named after V.M. Kokov, the nitrogen content in the soil was 0.12%, phosphorus 0.10% in a 30 cm soil layer, respectively. The scientific novelty of the research is represented by the fact that for the first time for the mountainous zone of the Central part of the North Caucasus, recommendations were given on the cultivation of promising spelled varieties, as well as cultivation technologies for high productivity. As a result, the harvest of spelled increased by 20%. This variety differs from the standard variety in high productivity parameters, as well as well-developed spikelets. For example, for wheat, the mass of 1000 seeds are taken into account, and for spelled, the total mass of spikelets, that is, five hundred spikelets contain a thousand grains. According to the morphological features, spelled bushes well and gives a good harvest during the harvesting process. This feature shows the high productivity of the plant, the weight in five hundred spikelets’ is 40 grams. To eliminate possible adverse effects when sowing spelled grain, it was decided to compare varieties for the selection of the most productive ones that form high-quality grain, as well as to the cultivation technology and the environment, as well as to compare the Yantara variety with the control. In the course of the experiments, regardless of precipitation and weather conditions, spelled formed a high yield, which, of course, is an important factor in yield. Thus, the work performed corresponds to the subject of the research work carried out in the field, as well as laboratory experiments, observation and analysis of the studies carried out corresponds to that set out in the article.

DESIGN FEATURES OF GRAIN HARVESTING COMBINEERS CASE IH "AXIAL-FLOW" SERIES

Harvesting grain is a very important production process that must be carried out as quickly as possible to obtain high-quality grain. Here it is important that the equipment is adjusted to the structure of the plants, and the plants, in turn, are prepared for machine harvesting. When creating grain harvesting equipment, various factors are taken into account: agrobiological properties and the structure of plant organs, stand height and density, lowness, strength, humidity, size and weight of fruits, weight ratio of grain to non-grain part, stage of maturity and others. Currently, harvesting of grain crops is carried out by direct or separate combining. Direct involves performing several operations: cutting plants, threshing plant mass, separating grain from straw, cleaning grain from various impurities, as well as harvesting grain and non-grain part of the crop. It is important that the harvester performs these processes at the same time in the stage of full maturity of the grain. This harvesting method is suitable for bread mass that is not clogged and has ripened evenly. As for separate combining, here mowing of plants and their threshing are carried out separately. Providing the enterprise with high-performance harvesters and the level of their use significantly affect the gross harvest of agricultural crops. In case of violation of the calendar terms for harvesting grain crops by more than 10–12 days, grain losses can reach 25–30%. In order for such a situation not to arise, agricultural enterprises must have the required number of harvesters of the necessary capacity, which could ensure, in the optimal time, harvesting of agricultural crops. In order to give preference to one or another combine harvester model, you need to know not only its price, but also individual technical and economic characteristics and the cost of threshing a ton of harvest. Because this indicator reflects the cost of the harvester, operating costs, its productivity, reliability and cost of spare parts. Innovation is only accelerating. Over the past 20 years, the average productivity of self-propelled grain harvesters has increased almost four to five times. The level of computerization of mechanized operating technologies also increased. The demand for products of the grain sub-complex is only growing. Ukraine is dominated by a diverse fleet of industrial grain harvesters of foreign production, purchased both new and used, the use of these grain transport systems is expedient and relevant. The question of choosing a modern high-performance grain harvester and the question of its effective use remain relevant.

Genetic Evaluation for Stability of Grain Yield and Yield Components in Foxtail Millet Using GGE Biplot in Foothills of Nagaland

Aims: Foxtail millet cultivation in India's North Eastern Hill region holds promise due to its adaptation to diverse environments and high-quality grain. Studying G x E interaction in this region will guide breeding programs to develop foxtail millet varieties adapted to local conditions. The objective of this study was to find out foxtail millet genotypes that produce high yield in diverse environments and to identify ideal mega-environments using GGE Biplot stability model analysis. Methods: The investigation was carried out during July 2022 to May 2023 for four different dates of sowing with twenty-five days interval. Two environments maintained under rained condition and the remaining two environments are maintained under irrigated condition. The experiment was conducted in randomized complete block design with three replications in all environments. Results: Analysis of variance revealed statistically significant differences (at 5%) among the 30 genotypes for all yield variables under evaluated. Genotype ‘G1’ exhibited superior performance for both yield and yield-related traits.In this study, four GGE biplots of GY, one is Discriminativeness and representativeness in GGE biplots revealed E4 is identified as the most representative environment. At the same time, E3 also stands out for its strong discriminative capacity. Another one is Which Own Where" biplots revealed that G19 and G27 displayed superior and stable performance in E1. Similarly, G25 and G1 excelled in E2, E3, and E4. while mean vs stability biplots revealed that G1 is stable and performs well. Conclusion: Genotypes, namely G1, G22, G25, and G21, exhibited stable and reliable performance across different conditions.

GRAIN AND GRAIN STRUCTURE

High-quality grain cultivation, complete organization of conditions for its collection and storage, break-even liquidation of grain harvest create prerequisites for the growth of the economy of processing enterprises.

ECONOMIC EFFICIENCY OF GROWING NEW DOMESTIC VARIETIES OF WINTER WHEAT AT DIFFERENT SOWING PERIODS IN THE WESTERN FOREST STEPPE OF UKRAINE

Purpose. To study and evaluate the impact of sowing dates of modern varieties of winter wheat on productivity, grain quality, production profitability in the agrobiological system of cultivation in the Western Forest Steppe zone. Methodology of research. Field: observation of the growth and development of plants during the growing season, yield formation; laboratory: determination of grain quality indicators; mathematical and statistical: dispersion analysis; calculation-comparative: determination of productivity, economic assessment of the researched elements of technology. Findings. Effective technological elements of the agrobiological system of growing grain ear crops have been developed in relation to the terms of sowing winter wheat in the conditions of the Western Forest Steppe of Ukraine. It is substantiated that in the conditions of climate change and in these soil and climatic conditions, winter wheat shows high indicators for late sowing, the best dates for sowing winter wheat are September 25 and October 5. A trend of growth in grain quality indicators for late sowing was noted. The content of gluten and protein in winter wheat grains, on average for 2021–2023, taking into account the data for all varieties, was the highest for its sowing in the latest dates (October 15 and 25) and amounted to 20.1% and 20.8% for gluten and 11.4; 11.7% for protein. It has been proven that the sowing of winter wheat in the period from September 25 to October 5 ensured the highest yield of quality grain 6.70–7.10 t/ha, conditionally net profit – 11900– 12384 UAH/ha, profitability level – 54,6–56,7%. Originality. The technological elements of ensuring the sustainability of winter wheat grain production with valuable economic characteristics have been developed, which contributes to increasing its competitiveness and profitability based on the use of the biological potential of new varieties in the conditions of the Western Forest Steppe. Practical value. The implementation of effective technological elements of the agrobiological system of growing grain ear crops in the conditions of the Western Forest Steppe will contribute to the growth of high-quality grain yield of new varieties of winter wheat, which will ensure a decrease in the cost of production and an increase in its profitability. Key words: grain ear crops, variety, sowing period, productivity, quality, competitiveness, profitability.

Effect of Cultivation Methods on Structural Elements and Grain Yield of Winter Wheat

The main part of human food is wheat, and the main task facing agriculture is to obtain high-quality grain from a single field in the current conditions. Yield varies depending on the variety, soil and climatic conditions and the cultivation used. Taking these into account, our research studied the structural elements and yield of winter wheat against the background of predecessors, soil cultivation and nutritional conditions in dry rainfed conditions, and the 3-year average result is also given in the article. For the first time in the region, optimal nutritional conditions and soil cultivation were studied by minimizing soil cultivation based on its predecessor and replacing some mineral fertilizers with organic fertilizers in order to obtain both high and quality grain products through efficient use of land. The studies were conducted in a 3-factor (2×3×3) field experiment in a short-rotation cropping turnover (peas, wheat, wheat) located in the Jalilabad Regional Experimental Station in the dry rainfed conditions of South Mugan. The object of research is the fertile 95 durum wheat varieties. Structural analysis of the yields was carried out on samples of sheaves taken from 1 m2(4×0.83×2×0.15 m) in two rows of 83 cm in 4 different replicate locations. After the shave samples were taken, the yield of the grain was determined according to the cultivation options by harvesting directly in each field with a combine. From the 3-year average results of the study for 2019-2021, it was found that the structural indicators of the variety and grain yield were dynamic depending on the cultivation option. However, the highest results were obtained after the pea predecessor against the background of N60P60+10 tons of manure applied with a heavy disc harrow at a depth of 10-12 cm in the twice disc option.

Genomic resources for a historical collection of cultivated two-row European spring barley genotypes

Barley genomic resources are increasing rapidly, with the publication of a barley pangenome as one of the latest developments. Two-row spring barley cultivars are intensely studied as they are the source of high-quality grain for malting and distilling. Here we provide data from a European two-row spring barley population containing 209 different genotypes registered for the UK market between 1830 to 2014. The dataset encompasses RNA-sequencing data from six different tissues across a range of barley developmental stages, phenotypic datasets from two consecutive years of field-grown trials in the United Kingdom, Germany and the USA; and whole genome shotgun sequencing from all cultivars, which was used to complement the RNA-sequencing data for variant calling. The outcomes are a filtered SNP marker file, a phenotypic database and a large gene expression dataset providing a comprehensive resource which allows for downstream analyses like genome wide association studies or expression associations.

BRS A504 CL: a new herbicide resistant upland cultivar with high quality grain

BRS A504 CL: a new herbicide resistant upland cultivar with high quality grain

The influence of agrometeorological factors on the yield of grain crops in the forest-steppe of the Omsk region

In the arid agricultural landscapes of Western Siberia, the productivity of leading grain crops is determined by adaptive agrotechnology, the use of intensification tools and hydrothermal conditions. The relatively low (up to 1.40-1.70 t/ha) and unstable yield of grain crops is mainly due to the limited use of fertilizers (up to 20 kg/ha), the aridity of the climate. Long-term studies have established that in the southern forest-steppe agricultural landscapes, precipitation of all periods of the year, except for spring, has an impact on grain productivity. Autumn moisture reserves determine the yield of spring wheat after its corn predecessor by 51% in general, up to 21% for steam, and only 13% for barley. The conjugacy of spring soil moisture is higher on wheat, on flat-cutting processing than on plowing, on intensive agrotechnology. The most significant combination of spring moisture reserves and summer precipitation (June-1st decade of July). The dependence of wheat yield after steam reaches a high conjugacy (r=0.77-0.84), after corn – from medium to strong (up to 59-71%). The correlation of yield with the temperature regime during the growing season is negative. The conjugacy with the value of GTK is more pronounced after the corn precursor – 46%, steam – up to 30%, barley only 8%, the greatest dependence was revealed with the Coefficient of dryness. The predicted yield level of high–quality grain with complex chemicalization and soil protection treatment with average long-term hydrothermal parameters on wheat after the corn precursor reaches 2.8 t/ha with a probability of up to 76%, and 3.4 t/ha for steam. To optimize the water regime, it is necessary to use additional moisture-accumulating agricultural techniques.

The effect of planting scheme and time on chickpea grain production in drought conditions

The article presents the influence of sowing dates and schemes on grain yield structure and yield of Lazzat and Malhotra varieties of chickpeas in drought-condition farming. Abundant and high-quality grain harvest from chickpeas directly depends on the correct determination of the optimal planting period and schemes. The purpose of the study was to determine the effect of planting periods and schemes on the structure and productivity of chickpea varieties in the conditions of typical gray soils of the lowland-hilly region. In the research, the indicators of grain yield structure and yield of pea varieties were observed in Lazzat and Malhotra varieties when planted in early spring 20.02 in the 60x15x1 scheme, that is, the elements of the grain yield structure, the number of pods and grains per plant, were found to be higher compared to the control option 60x6x1 scheme. In the article, the impact of planting periods and schemes of Lazzat and Malhotra varieties of chickpeas included in the State Register of Agricultural Crops on the grain yield structure and productivity was studied and recommendations were made based on the experimental results. Keywords: soil, chickpea, Lazzat, Malhotra, variety, seed, legume, grain, yield, structure, productivity, planting time, planting scheme, plain-hilly region.

The effect of sowing dates and seed rates on field germination of new varieties of wheat

The article presents the effect of sowing dates and seed rates on the field gemination of seeds of new varieties of durum wheat Javahir, Mingchinor, Langar, Yoqut-2014 in drought conditions. The complete harvest of winter durum wheat and its wintering, storage until harvest, and ultimately, obtaining an abundant and high-quality grain harvest from the crop directly depend on the correct determination of the optimal sowing period and norms. The purpose of the study was to determine the effect of sowing dates and seed rates on the field germination of new durum wheat in the conditions of typical gray soils of the drought conditions of Kashkadarya region. In research, the highest germination of durum wheat seeds was observed when planted on October 21, that is, the fertility of seeds compared to when planted on October 1 (control) was 2.9 in accordance with Javokhir, Mingchinor, Langar, Yoqut-2014 varieties; 2.7; 3.2; increased by 3.3%. A decrease in field fertility of all durum wheat cultivars was observed with late sowing. This indicator is 5.8 in the Jawakhir variety compared to the one planted on October 21 in the first ten days of December; 6.1 in Mingchinor; 6.3 at anchor; Ruby decreased by 6.4% in 2014. In the Mingchinor variety, 2.1% delay in planting dates from October 21 and 6.6% decrease in seed germination in field conditions were found. In the article, the impact of planting dates and standards of durum wheat varieties Javahir, Mingchinor, Langar, Yoqut-2014 included in the State Register of Agricultural Crops on field germination was studied and recommendations were given based on the experimental results.

Analysis of the state of cultivation and harvesting of mung bean and agro-biological requirements for threshing and separating its grain

Mung bean is one of the most important leguminous crops, and due to the increased demand in the market and the low demand for water in its cultivation, the area of Moss cultivation is expanding in Uzbekistan. Today, the area where mung bean is grown is more than 300 thousand hectares. With the increase in the area where mung bean is grown, the demand for the equipment used in harvesting it is also increasing. This creates the need to develop and introduce new technical means for mung bean harvesting. If we take into account that high-quality grain is obtained when mung is first harvested, dried, and then threshed, farmers and farms in our republic can thresh the mung crop without excessive mechanical impact on the mass to be threshed without damaging it. It is recommended to use a device that receives. In this case, the completeness of crushing and separating the grain should be at least 99%, the purity of the grain should be at least 96%, and the damage and destruction of the grain should not be more than 2%. For this purpose, it is desirable that the device has a combination of crushing and separation devices.

Analysis of the state of mechanized sowing of rice in seedlings

This article presents a brief analysis of the state of rice cultivation, the main advantages and disadvantages of seedling rice planting, analyzes the prospects for rice cultivation and mechanization of this process in Uzbekistan. Measures are indicated to fully meet the needs of the population in this product and reduce imports in Uzbekistan by giving special attention to the placement of varieties adapted to soil and climatic conditions with high-quality grain and high yields, the development and implementation of highly efficient resource-saving agricultural technologies in their cultivation. The factors influencing the decline in the efficiency of rice growing for the Central Asian region are analyzed. The purpose of the use of technical means for planting rice in seedlings is substantiated. The technical characteristics are presented a comparative analysis of the technological process, the main design advantages and disadvantages of machines for planting rice is made. Data on the physical and mechanical properties of soils used for rice crops, as well as on the main varieties of rice grown in the region are presented. After analyzing the agro-technical requirements for sowing rice in seedlings, a technical solution that improves the technological process of transplanting machines of the PA-600D-R and RF-455 brands (Korea) is proposed. The results of research on the development of the design of a planting device with optimal parameters and the possibility of using it for planting rice in seedlings for the soil and climatic conditions of Uzbekistan are presented. A mathematical model of the machine is built and its optimal values have been determined. Using special programs such as Compass 3D, 3D Max, MS Word, MS Excel and a number of other programs, 3D and 2D models of parts of the rice planter planting device were prepared. The analysis and results of the studies carried out will allow using the obtained data in improving the design of the planting device. The use of a machine equipped with such devices when sowing rice in seedlings will significantly reduce the consumption of seeds, irrigation water, shorten the growing season, reduce crop weeds and, as a result, increase grain yield.