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Використання комбінованих знарядь у системі підготовки ґрунту до сівби дозволяє зменшити енергетичні і трудові витрати на одиницю вирощеної продукції при збереженні родючості ґрунту з максимальним економічним ефектом. При підготовці ґрунту до сівби є важливим створення дрібногрудочкової структури ґрунту з використанням простих машин та знарядь. Мета досліджень – підвищення якості структурного стану ґрунту під час підготовки до сівби з використанням найпростіших і високопродуктивних знарядь і машин, зменшення питомих енергетичних витрат на підготовку ґрунту до сівби сільськогосподарських культур. Застосування комбінації робочих органів для розпушення ґрунту в одній машині дозволяє інтенсифікувати процес кришіння ґрунту і розширити діапазон використання машини чи знаряддя для підготовки ґрунту до сівби сільськогосподарських культур. Одним із шляхів розв’язання проблеми якісної підготовки ґрунту до сівби сільськогосподарських культур є застосування високопродуктивних комбінованих багатоопераційних агрегатів, які за один прохід забезпечують розпушення, вирівнювання поверхні ґрунту та його необхідне ущільнення. Такі агрегати запобігають переущільненню ґрунту, характерному для традиційного обробітку, а завдяки формуванню добре розпушеного поверхневого шару зменшують випаровування вологи. Порівняльний аналіз агротехнічних показників роботи борони-культиватора, виконаний на основі польових випробувань, дав змогу встановити, що підвищення коефіцієнта якості розпушування ґрунту на 14...17%, коефіцієнта якості кришіння на 10...17,6% порівняно із серійними боронами розширює функціональні можливості використання борони-культиватора з експериментальними гнутоштабовими зубами для обробітку ґрунту. Впровадження в практику використання борін з гнутоштабовими зубами уможливлює підвищення якості обробітку ґрунту, збільшення продуктивності праці та скорочення енергетичних затрат.

To assess the operational energy requirement (OER) and tillage performance index (TPI) of four different active tillage treatments and identification of the best efficient tillage practice among them to achieve an alternative to the conventional practice T1 (1 × Cultivator + 2 × Offset disc harrow), which involves only purely passive type of tillage tools. The active tillage treatments considered were as follows: T2 (1 × Combined offset disc harrow), T3 (1 × Cultivator + 1 × Single rotor type rotavator), T4 (1 × Double rotor type rotavator), and T5 (1 × Power harrow). Each implement in the respective treatment was operated at their best suitable forward speed and rotor rpm. Compared to the conventional practice T1, the amount of fuel saved per hectare in tillage practices, T2, T4, and T5, was 49.8%, 17.9%, and 20.3%, respectively. However, tillage treatment T3 was found to consume 6.9% more fuel. Compared to T1, the amount of time saved by T2, T3, T4, and T5 tillage practices was found to be 61.1%, 9.54%, 40.6%, and 44.6%, respectively. The maximum OER of 1445.32 MJ ha−1 was observed in T3 followed by 1360.40, 1105.86, 1085.86, and 681.36 MJ ha−1 in T1, T4, T5, and T2, respectively. Further, compared to T1, the TPI for tillage treatments, T2 and T4, was found to be higher by 74.07% and 133.33%, respectively. However, the TPI for tillage treatment T3 was found to be lower by 88.88%. Active tillage implements helped in time and fuel-saving in seedbed preparation. The maximum percentage of operational energy was consumed in the form of fuel energy. The front active and rear passive configuration of combined offset disc harrow was found to be the most effective among all the tested active tillage implements in terms of both operational energy and tillage performance criteria.

Field experiments were conducted to investigate the effects of residue and tillage on growth and yield of melon. Tillage treatments included conventional tillage (using a moldboard plough and two passes with a disk harrow), minimum tillage (one pass with a disk harrow), and no tillage (NT). Residue treatments included the application of 0%, 30% and 60% residue. Yield and yield components were obtained for all treatments. Tillage significantly affected yield and its components (P ≤ 0.05). The maximum FWPP (2.678 kg), NFPP (6.799), D (18.49 cm), L (45.93 cm), S (12.51%) and RUE (2.470) and yield (16.17 t/ha) were recorded in the conventional tillage treatment. Also, maximum FWPP (2.192 kg), NFPP (5.353), D (16.66 cm), L (39.52 cm) and yield (12.83 t/ha) were observed in the 30% residue treatment. In terms of the interaction effects, maximum FWPP (2.850 kg), NFPP (6.790), D (20.71 cm), L (53.53 cm) and yield (17.09 t/ha) were obtained in the conventional tillage + 30% residue treatment. Therefore, the use of a moldboard plough followed by two passes with a disk harrow, in concert with 30% residue treatment, were maximizing the yield Almost all growth indicators had the optimum values in the conservation tillage treatments.

Tillage involves a lot of energy expenditure, generally in terms of fuel consumed by the tractor. The fuel consumption for the different tillage practices needs to be quantified and this paper presents quantification for the same. The experiment was carried out at the fields of two different soil types viz. sandy loam (S1) and silty loam (S2). Six tillage practices, designated as P1, P2, P3, P4, P5 and P6, were undertaken in the present study. The six practices were one pass of harrow-cultivator-planker combination (P1), two passes of harrow-cultivator-planker combinations (P2), one pass of rotavator (P3), two passes of rotavator (P4), one pass of spading tillage machine (P5) and two passes of spading tillage machine (P6). Different implements have their own, i.e. different recommended speeds and depths of operation. For experimental study, two different depth of cut ranges, designated as D1 & D2 and two forward velocity ranges, designated as V1 & V2, suitable to every implement, were selected. The conventional tillage practices consumed more fuel and time as compared to multi-powered tillage tools practices but were found to move considerable volume of soil and shows lower rate of fuel consumption per unit of soil moved than other practices, whereas, rotavator and spading machine takes lesser time and fuel for tillage operation.

O uso da mecanização agrícola permitiu a realização de práticas de cultivo mais eficientes nas lavouras. Objetivou-se avaliar a qualidade da operação de preparo do solo com grade aradora em três velocidades de deslocamento utilizando o Controle Estatístico de Processos (CEP). As velocidades utilizadas foram 3, 4 e 5 km h-1. O trator utilizado foi da marca New Holland, modelo 7630, com potência de 80 kW (108 cv) no motor, acoplado a grade aradora. Foram avaliadas a capacidade de campo operacional e o rendimento de campo efetivo como indicadores de qualidade da operação de preparo do solo. A capacidade de campo operacional obteve processo estável em todas as velocidades. Já o rendimento de campo efetivo obteve instabilidade de processo quando trabalhado com 3 km h-1. A aplicação do Controle Estatístico de Processo na operação preparo do solo permitiu identificação de pontos instáveis no rendimento de campo efetivo para a velocidade de 3 km h-1. A existência de variabilidade no rendimento de campo efetivo não compromete a estabilidade da operação de preparo do solo com grade aradora nas três velocidades. A capacidade de campo operacional e o rendimento de campo efetivo apresentam menor variabilidade na velocidade de 3 km h-1.

Tillage is one of the most important operations in the preparation of land for growing crops. Among secondary tillage implements, power harrows, which have a series of PTO-driven rotors which rotate about their vertical axis, are widely adopted in soil-working operations. Typically, this kind of implement is highly energy consuming, due to the heavy mechanical loads required to pull the harrow and the PTO (Power Take-Off) torque needed to drive the rotors. This paper reports the results of extensive in-field experimentation in which the relationship between the operating conditions of a tractor - power harrow system and the mechanical loads (i.e. PTO torque and draught) were investigated in two different test site fields. The test parameters consisted of: nominal tractor speed (3, 6, 9 and 12 km h−1), nominal working depth (6, 9 and 15 cm) and rotor speed (285 and 411 rpm) at a PTO speed of 1000 rpm. The data was statistically analysed by means of a linear mixed effect model to assess the differences in the tractor - harrow system performances measured under different working conditions. The presented results show which operating conditions can be favourable regarding energy and fuel consumption as this information may be very useful to farmers to reduce costs. Moreover, the measured mechanical loads concerning PTO torque and draught may also be beneficial for manufacturers to improve the design of these kinds of implements.

The spring-tine harrow is gaining popularity for mechanical weeding. However, its weeding performance and mechanism have not been well understood. A spring-tine harrow was first tested in a controlled indoor soil bin at four different travel speeds (4, 6, 8, and 10 km h−1) with three different spring-loading settings (low, medium, and high). Then the harrow was tested in a wheat (Triticum aestivum L.) field at the same spring-loading settings at three different weeding timings (early, middle, and late) in 2019 and 2020. Soil cutting forces (draft and vertical), soil displacements (forward and lateral), soil working depth, weed control efficacy, weed density, and crop damage were measured. The results showed that the spring-loading setting had a more dominant effect on working depth and soil cutting forces than the speed. The soil displacements were more dependent on the speed compared with the spring-loading setting. Treatment effects on weeding performance indicators in the field were similar across years. Adjusting the spring-loading setting from low to high improved the weeding efficacy from 44.9% to 73.9% in 2019 and from 51.6% to 78.1% in 2020. Consequently, the final weed density was minimized at the high loading setting, with the reduction in 2020 being significant. The middle weeding timing caused the least crop damage, while reducing the final weed density by approximately one-third compared with the control (without mechanical weeding), which was the most desired outcome among the three timings tested.

The investigation was carried out during 2014–2016 in the land of General Toshevo, the South Dobrudzha region of Bulgaria on slightly leached chernozem soil type. The effect of the types of soil tillage for sunflower given bellow was followed: ploughing at 24–26 cm, chisel-plough at 24–26 cm, disking with disk harrow at 10–20 cm and direct sowing (no-tillage) on the bulk density, the moisture content and the temperature of soil. The additional soil tilths of the areas subjected to ploughing, chisel-ploughing and disking with disc harrow included double spring pre-sowing cultivation with harrowing. To destroy the emerging weeds in the variant with direct sowing, a total herbicide was applied. The investigated physical parameters of soil were followed during three main stages of sunflower development: emergence, flowering and technical maturity. The bulk density of soil was determined by soil samples taken from the 0–10, 10–20 and 20–30 cm layers. The soil temperature was read at 800, 1200 and 1600 h to depth 2, 5, 10, 15, 20 and 25 cm with classical soil thermometer. For evaluation of the results dispersion and regression analyses were used. In the slightly leached chernozem soil type, the conventional ploughing leads to lower bulk density in the cultivated soil profile. Under minimal tillage, slight increase of bulk density of the layer underlying the cultivated one was observed over time. The bulk density under tillage without turning of the soil layer and no-tillage was changed and formed primarily under the influence of physical and climatic factors, and under minimal tillage – under the cultivated layer. Under all investigated types of soil tillage, bulk density increased down the soil profile. Replacing ploughing with tillage without turning of the soil layer, minimal and no-tillage lead to decrease of soil temperature. The most significant differences were observed in the 0–10 layer, which, on its part, conditioned accumulation and transfer of thermal energy along the soil profile. The soil temperature decreased with the reduction of the number and depth of the soil tillage operations. The temperature amplitudes between the surface layer and the underlying soil horizons in the areas with ploughing, chisel ploughing minimal and no-tillage were lower. The results concerning the values of the investigated physical properties of soil under different types of soil tillage were statistically significant at different levels of P.

The invasion of Lehmann lovegrass (Eragrostis lehmanniana Nees) in rangelands of Chihuahua, Mexico, has resulted in a need for revegetation to recover lost forage productivity. Thus, new knowledge on generating alternatives to improve these invaded grasslands is of great importance. This study evaluated seedbeds prepared with unconventional tillage implements and seeded with a grass mixture to reduce the plant density of E. lehmanniana while increasing the productivity of an invaded semiarid grassland of Chihuahua. The unconventional tillage implements were: a Rangeland Harrow, which was used to prepare the Striped Harrowing and Full Harrowing seedbeds; Rangeland Rehabilitator, which was used to prepare the Deep-Stingray Subsoiler seedbed; and a Tandem-type Aerator Roller, which was used to prepare the Double-Digging Aeration seedbed. An area without tillage was left as a control. The seed mixture was composed of blue grama [Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths var. Hachita] (25%); sideoats grama [Bouteloua curtipendula (Michx.) Torr. ‘6107 Kansas’] (25%); green sprangletop [Leptochloa dubia (Kunth) Nees var. Van Horn] (5%); weeping lovegrass [Eragrostis curvula (Schrad.) Nees var. Ermelo] (40%), and Columbus grass [Sorghum almum Parodi] (5%). The experiment was conducted across 4 yr, and the evaluation started at the second year. Plant density and dry matter (DM) production were evaluated per species. In the control plot, the plant density of E. lehmanniana increased approximately 180% from the 2nd to the 4th year (18 to 50 plants m−2). The use of unconventional tillage implements for seedbed preparation and the inclusion of E. curvula in the seed mixture decreased E. lehmanniana density in more than 50% of plots and increased DM production in around 100% of plots. Considering the whole experimental period, in all the prepared seedbed treatments, E. curvula had the highest establishment and DM production of all the seeded species. The native species B. gracilis, B. curtipendula, and L. dubia had poor establishment in all the prepared seedbeds.

Goal. To assess the technical implementation and production efficiency of bridge mechanization for the track system of agriculture in the technological processes of tillage and application of technological materials (on the example of an agricultural tool with a developed design). Methods. Experimental studies were performed according to both conventional and developed methods using a modern strain gauge and control measuring equipment with the analog-to-digital conversion of signals from information sensors. Results. According to the results of experimental studies of the bridge agricultural unit as a part of agricultural tools for surface tillage, high adaptability to the implementation of technological processes for tillage has been proved. Comparative graphs are built of normalized correlation functions and normalized spectral densities of profiles of irregularities of traces of a constant technological track and profiles of irregularities of agrophones after the passage of a toothed harrow, as well as a S-shaped spring ripper, and also a rotary harrow. Based on them, it is established that the work of agricultural tools for surface tillage has a good effect on the nature of the non-uniformity of oscillations of their traction resistance. Conclusions. The main generator of the formation of irregularities of the longitudinal profile of the soil traces of the constant technological track is the parameters of the soil hooks of the tires of the wheels of the bridge agricultural unit. The oscillations of the irregularities of the profiles of the treated agrophones by the bridge agricultural unit with attached agricultural tools (S-shaped spring ripper and rotary harrow) are smoother as a result of the movement of the agricultural unit along the compacted traces of a constant technological track. The quality of tillage with units based on bridge agricultural unit is approximately the same as in similar traditional machine-tractor units. But the specific energy consumption per 1 ha of the cultivated area with new units is lower by 40%.

Made available in DSpace on 2020-12-12T02:47:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 Sugarcane production system requires intense agricultural mechanization to prepare the soil and there are enormous questions about which soil preparation should be adopted in order to improve field productivity. Thus, this work aimed to verify the energy optimization in sugarcane soil preparation for increasing productivity. The experiment was carried out with a banded experimental design, with six replications, consisting of two soil tillage systems, one system used was conventional tillage and the other, deep preparation in band. Conventional tillage was carried out with a heavy harrow and subsoiler, while deep preparation was performed in band with “penta” equipment. In both soil tillage systems, the planting was carried out mechanically. Variables were measured: hourly fuel consumption (L h−1), area fuel consumption (L ha−1), operational yield (h ha−1), biometric parameters and crop productivity. The highest hourly fuel consumption occurred in conventional tillage. The different soil tillage systems did not influence mechanized planting. The highest productivity was obtained in the deep band preparation. Agronomy Department Cassilândia University Unit Mato Grosso do Sul State University—UEMS, 306 Road, Km 6 Crop Production and Breeding Department College of Agricultural Sciences UNESP—São Paulo State University, Av. Universitária, 3780 Rural Engineering and Agricultural Mechanization Department College of Agricultural Sciences UNESP—São Paulo State University, Av. Universitária, 3780 Crop Production and Breeding Department College of Agricultural Sciences UNESP—São Paulo State University, Av. Universitária, 3780 Rural Engineering and Agricultural Mechanization Department College of Agricultural Sciences UNESP—São Paulo State University, Av. Universitária, 3780

A utilização da mecanização agrícola tornou mais eficiente as práticas agrícolas, destacando-se o trator que permitiu a realização de práticas de cultivo mais eficientes. Portanto, objetivou-se determinar o comprimento de talhão que obtenha eficiência de campo de 90% na operação de preparo do solo com grade média em função da velocidade de deslocamento e do comprimento do talhão. O experimento foi realizado em delineamento inteiramente casualizado, em esquema fatorial 8x3, com seis repetições, totalizando 96 observações. O primeiro fator foram oito comprimentos de talhões (30, 60, 90, 120, 150, 180, 210 e 240 m). O segundo foram três velocidades de deslocamento (3,0; 4,1 e 4,7 km h-1). Com os dados de rendimento de campo efetivo foi gerado uma curva de resposta para seleção do comprimento de talhão que proporcione rendimento de campo efetivo de 90%. No fator velocidade de deslocamento a maior capacidade de campo operacional ocorreu com 4,7 km h-1. Para o fator comprimento do talhão a maior capacidade de campo operacional e rendimento de campo efetivo foi observada com 240 m. O rendimento de campo efetivo de 90% é alcançado com comprimento de talhão de 120 metros. A capacidade de campo máxima ocorreu com a velocidade de 4,7 km h-1 (0, 93 ha h-1) com o comprimento de talhão de 214 m.

The article discusses the sustainability dynamics in the longitude-vertical plane one trailed harrow section designed for fallow treatment. Deviation this dynamical system from the horizontal plane have accepted as the main estimated parameter. Theoretical studies have allowed received such as results. The fewer the distance between row tines of zigzag harrow section, the fewer its deviation amplitude and phase from the equilibrium state. When the attachment point coordinate of the harrow dragbars is increased from 0 to 0.2 m, its angle and time deviation from the equilibrium state is half as many that it is the desired result. When the harrow section has rational design parameters, its turn angle in the longitude-vertical plane does not exceed -3o, and time its output to the equilibrium state does not exceed 16 s. On soils with light grading, which have a low value of the vertical movement resistance coefficient of the harrow tines, time its output to the equilibrium state is reduced from 16 to 0.7 s.

Before any late-season weed control operations are planned to manage herbicide-resistant weeds, it is essential to evaluate the plants’ maturity and shattering potential. Our goal was to assess the seed-shattering phenology of common ragweed (Ambrosia artemisiifolia L.) using pollination bags as seed traps. A secondary goal was to evaluate the efficiency of these traps. Trials were conducted from 2014 to 2017 at two locations in eastern Canada (Saint-Jean-sur-Richelieu, QC, and Harrow, ON). At each location, three adjacent fields were seeded with spring wheat (Triticum aestivum L.), soybean [Glycine max (L.) Merr.], or corn (Zea mays L.). Each field was divided into four replicate blocks that included two treatment plots with 5 weeds m−2 planted on the same date as the crop or when crop plants had two leaves (early or late emergence). To evaluate shattering in time, the experiment included up to 12 weekly collection dates (subplots). In each subplot, weeds were individually bagged at flowering (using mesh bags) until collection, when the number and viability of shattered and retained seeds per plant was recorded. Weather data as well as crop and weed stages were recorded. The effect of the pollen bags on seed retrieval and viability was evaluated by installing open and closed bags in corn and uncropped (bare) plots at a single location. Ambrosia artemisiifolia seed biomass was equivalent or higher in closed bags, and seed viability was equivalent or slightly reduced. No seeds were produced before harvest in spring wheat, as dispersal started in September. The percentage of seeds retained on the plant decreased linearly (1 site-year) or followed a logistic equation (4 site-years) with day of year or growing degree days. Dispersal in time was similar between early- and late-emerging weeds and similar in both corn and soybean. On average, more than 50% of A. artemisiifolia seeds were dispersed before harvest in corn and soybean.

The following items are specified in the article: installation angle with regard of horizon of the enhanced compactor of harrow leveller for the purpose of increasing the work quality and efficiency in land areas harrowing and decreasing the energy-material consumption; length of the working surface and comparison to be forwarded to it, i.e., the results of multi-factor experiments to determine the optimal values of its vertical load corresponding to a coverage width of one meter, which provides the required level of work quality with low energy consumption. Multifactorial trials were implemented based on Hartley-4 plan. In this case the following items are obtained: mean square deviation of unevenness heights of processed land surface as evaluation criteria; degree of soil crumbling, i.e. amount of soil fractions having dimensions less than 25 mm; density of soil at 0-10 cm layer and comparative resistance of traction of the harrow leveller. The information and data obtained in the course of trials was developed based on the "Planexp" programme at the Experiments and Testing Department of the Institute. In this case the following criteria were used: Cochran's test criteria for evaluating the uniformity of dispersion; Student's criteria for evaluation the value of regression coefficients; Fisher criteria for evaluation the adequateness of regression models. The results of trial were developed based on the above specified programme, thus regression equations adequately formulating the evaluation criteria were obtained. They are the average square deviation of the height of the unevenness of the field surface treated for the unit operating speeds of 6.0-8.0 km/h which is less than 2.0 cm, the degree of soil compaction is greater than 80%, the density of the soil in the 0-10 cm layer is 1.1- In the range of 1.2 g/cm3 and the conditions under which the specific resistance of the harrow leveller has a minimum value, the following optimal values of the improved harrow-leveller compactor parameters were determined: installation angle of the compactor relative to the horizon 29-32 , working surface length 31-32 cm and the vertical load applied to it is 2.4-2.6 kN/m.

Knowledge gaps have been identified for legumes cultivation in Luxembourg, especially in terms of weed control, where soybean production is still at its initial stages. The study tests different mechanical weed control methods in organic soybean cultivation on-farm. The impacts of different weeding techniques are observed from an ecological point of view, in terms of species number and diversity. The cultivation trials, one-factorial exact trials with four replicates, were conducted on two organic farms in 2018 and 2019. Five different treatments were tested: harrow, interrow cultivator with duck foot shares, interrow cultivator and finger weeder, combination of harrow, interrow cultivator and finger weeder and an intercropping soybean-camelina combined with harrow. For each, the number of weed species, as well as their identification, has been assessed three times: before weed control, after weed control and at the flowering of soybean. Calculated Shannon indexes have quantified the diversity of weeds. Forty-nine weed species have been counted in total, for all sites. Calculated Shannon indexes were common values for organic fields. Weed control has a negative impact on weed diversity. Low abundant species were more likely to disappear, while few species, one to four, keep being more dominant. The use of the interrow cultivator, in combination with the harrow (as blind harrowing) and the finger weeder, tends to lower the most the number of species and the diversity of weeds. Further ecological research is necessary to better determine the interactions between weeds and soybean.

Review of: A Companion to African Cinema, Kenneth Harrow and Carmela Garritano (eds) (2019) Hoboken, NJ: John Wiley & Sons, 515 pp., ISBN 978-1-11910-005-8, ePDF $172.99, ISBN: 978-1-119-10031-7, h/bk $215

Received: August 1st, 2022 ; Accepted: September 8th, 2022 ; Published: September 9th, 2022 ; Correspondence: jyri.olt@emu.ee A new design of the harrow with screw-type operating tools is presented in the paper. It describes the theoretical and experimental investigations carried out for the purpose of optimising the design and process parameters of the harrow with screw-type operating tools. Such optimisation will provide for improving the soil fertility, when burying chaff and other plant residues as organic fertilisers into the soil during its tillage. On the basis of the results obtained in the comprehensive experimental investigations, new regression relations have been generated. These relations provide for determining the proportion of the field surface, where the after harvesting residues have been completely buried in the soil with the harrow with screw-type operating tools. It has been established that the dominant effect on the relative amount of the field surface area S with completely worked-in plant residues is produced by the soil tillage depth h, then follows the factor of the screw-type operating device battery approach angle β. The pitch distance Т of the screw-type operating device has the smallest effect. The results of the completed research prove that increasing the pitch distance Т of the screw-type operating tool from 0.18 m to 0.26 m results in the decrease in the area S of the field surface with the plant residues buried in the soil by 1.4%. An increase in the approach angle β from 20° to 40° results in the increase in the field surface area S with the plant residues completely worked into the soil by 5.6%. Increasing the soil tillage depth from 0.08 m to 0.12 m results in the increase in the above-mentioned surface S by 7.1%. The simultaneous action of the factors of the tillage depth h and the approach angle β results in the percentage of the surface S rising from 72% to 82%.

Relevance. One of the important elements of adaptive sunflower cultivation technology is the system of pre-sowing tillage, which is aimed at the maximum destruction of seedlings and seedlings of weeds, preserving the accumulated reserve of soil moisture and creating optimal conditions for seed germination. The aim of the research is to study the elements of adaptive technologies of sunflower cultivation (methods of crop care) to increase its productivity and provide vegetable oil producers with high-quality raw materials.Methods. According to the morphological features of the genetic horizons of the profile and agrochemical indicators of the arable soil layer of the experimental plots, they are characteristic of the 1st dry-steppe zone of Western Kazakhstan. The area of plots for sunflower cultivation is 90m2, the repetition is three times, the location of plots is randomized. The experiments used a hybrid of sunflower Avangard. Seeding rate recommended for the dry-steppe zone of the West Kazakhstan region. During the research, nitrogen and phosphorous mineral fertilizers were used in the recommended doses for the region.Results. As a result of research on methods of crop care in the conditions of the 1st dry-steppe zone of the West Kazakhstan region, it was found that to control weeds on sunflower crops, it is advisable to harrow the soil with pre-sowing cultivation and use the herbicide roundup 5 days before sowing with a rate of 2 l/ha (option 2), where high structural indicators were noted and the highest seed yield was obtained