Our research aimed to create a novel lactose-free sour milk product. This would be attractive for local producers and give new possibilities for the development of the dairy industry. The new product consists of two ingredients: yogurt and ricotta. Lactose-free yogurt technology has been developed for the first component production.Yogurt with 3 different curds has been produced and subjected to physicochemical and organoleptic testing. Bacterial culture consisting of Lactobacillus delbrueckii subsp. Bulgaricus and Streptococcus thermophilus were added in quantities of 100 units per 250 liters milk. The dose of lactase enzyme has been determined to decrease lactose content to 0.01 %:0.48 ml/l Ha-Lactase 5200 NLU. Technological parameters have been developed to ensure higher yield and faster protein separation for ricotta production. Three samples with different proportions (yogurt/ricotta) have been produced to obtain a product with a pleasant taste, aroma, and homogeneity for consumers. As a result of the organoleptic examination of the obtained samples, the optimal ratio has been defined as 90:10. Buckthorn puree was used as a natural additive. The food recipe has been developed, energy value and cost value have been calculated, and the titratable acidity of the food has been investigated.

It has been established that there is a need for regular inclusion of soil plowing in the process of minimum tillage. The need for regular inclusion of soil plowing in the process of minimum tillage has been established. A technological scheme for a combined machine has been developed, and a combined front plough for smooth plowing capable of performing both basic and surface soil tillage in a single pass has been proposed. Several geometric, operational, and technological parameters of the proposed plow working body have been determined. The feasibility of using a combined front plough for smooth plowing has been confirmed.

In 2021, the procedure for cadastral assessment approximated to market value of real estate for real estate taxation (adopted in 2019) came into force in the Republic of Armenia, whereby a new methodology for cadastral assessment of other land fund categories of the RA was determined. The procedure does not apply to agricultural lands, which to this day are assessed and taxed according to the methodology and values that were determined in 1997. In this article, we have addressed some points of the current methodology, which, in our opinion, require revision or additional argumentation.

The article presents the results of two-year investigations related to the effect of different soil cultivation methods, application times of equal doses of mineral and organic fertilizers and bio-humus with bentonite application against their background on the dynamics of macronutrients accumulation and their removal/output through the crop yield. Considering the changes in the winter wheat growth, development, and yield capacity under the effect of different soil tillage methods, as well as the applied fertilizers and bentonite in rainfed conditions, and also the nutrition characteristics, to get high and sustainable yield the cultivation of winter wheat should be implemented only through loosening method, while fertilization should be implemented by introducing natural rock bentonite into the soil either on the background of mineral fertilizers (N60P60K60) or bio humus (3.5 t/հa) in autumn, as a result of which the soil air, nutrition and humidity regimes improve, favorable conditions are created for the regular growth and development of the plant and 48.8-52 c/ha grain and 89-96 c/ha straw yield is ensured.

The main goal of the research was to study greenhouse tomato hybrids under hydroponic greenhouse conditions and to enhance the agro economic properties of tomato hybrids, offering farmers the hybrid that ensures high efficiency of tomato cultivation under hydroponic greenhouse conditions. During the vegetation period, phenological observations, biometric measurements, and crop counting were performed. Producing and selling vegetables in the local market is the primary activity of greenhouses and tomatoes occupy a significant place in vegetable production. In recent years, various varieties and hybrids have been imported into Armenia, most without testing. Tomato cultivation in greenhouses occupies a leading place in Armenia. The greenhouse tomato hybrids Merlis, Plumola, and Endeavor were researched.

Over the recent 20 years, for the first time, the disease of swine perfringens has been studied in the Aragatsotn region of RA and related epidemiological analysis has been conducted. To identify A, C, and D serological types of Cl. Perfringens and special diagnostic sera produced by the Kursk biofactory were used. It has been found that the main serological infection type of swine perfringens is C and sometimes A and D subtypes. In the pig breeding farms of the mentioned region about 6887 heads of swine (aging from 3 days to 1 year old) were registered. Per the research results, about 45 out of 72 communities were recognized as insecure/vulnerable. As to the above-stated animal number, it should be mentioned, that 1722 heads of swine fell down, whereas 5510 were considered bacteria carriers. Thus, as a result of epidemiological analysis, the morbidity (bacteria carrying rate), mortality, insecurity/vulnerability, and focality coefficients (indicators) have made 0.80 (80 %), 0.25 (25 %), 0.63 (63 %), and 122 animals, respectively.

Potato peeling machines do not provide the necessary technological quality of the tuber cleaning process. The shovel separation system operating in heavy ground conditions must be equipped with a dynamic shredder of tubers. The driving mechanism of grinding and pipelining, operating on a dynamic principle, is located in front of the goiter of the potato peeling machine and covers the entire profile of the tuber. The ground chips cut from the tuber should be thrown into the aisle to reduce the amount of soil in the tuber-soil mass, the most purified tuber mass from the soil should be fed into the filter elevator. The analysis of the calculated value of the angle of installation of the knife shows that the optimal position of the knife in the range of rotation angles of the rotor depends only on the kinematic parameter. When justifying the parameters of a large-sized conveyor, determining the optimal value of the angle of installation of the knife is necessary, but still insufficient condition. A sufficient condition requires justification of the second parameter of the knife installation to ensure the simultaneous fulfillment of two conditions: cutting chips with an inclined slide and its ejection into the interline space. The installation condition of the knife is provided by sliding cutting, taking into account that it is necessary that the Earth chips be dumped into the aisle after cutting from the tuberous soil, to reduce the amount of soil in the tuberous-soil mass, a more purified tuberous mass from the soil is fed into the filter elevator.

The ratio of stem fruit, skin, pulp, juice, and seeds is determined by mechanical analysis. A grapevine›s ratio between these components is crucial for winemaking, both in terms of yield and quality. This work aims to determine the mechanical composition of the local, less common varieties, Voskehat and Chilar. The weight of the bunch and berries, the number of berries in the bunch, as well as the weight of the seeds and the skin of the ridges are determined. The structure of the bunch, the composition of the berries, and the indicator of the composition of the bunch were calculated: For Chilar grape varieties, this indicator was higher at 1.8, while for Voskehat grape varieties, it was 1.4. Higher juice yields mean higher efficiency of wine production and lower wine costs for technical varieties.

Seven different types of grain grinders were tested under production conditions. Grain grinders with vertical and horizontal cutting organs were selected for investment in mass and feed production. Their technical, economic parameters, and operational reliability were investigated. Based on the statistical evaluation of the operational reliability of grain grinders, the average statistical values of their readiness factor were calculated, which was Kp=0.8 for UHM-2.2, and 0.51 for HHUM-2.2. Meanwhile, it is established that the readiness factor of the machines and equipment used in animal husbandry and feed production should be no less than 0.94. All defects of nodes and machine parts were identified, also scientific and practical recommendations were made to eliminate and improve operational reliability. It has been established that in the case of identifying defects arising during the long-term operation of these grain grinders, eliminating them with appropriate methods, and finally improving their structure and function, it is possible to successfully organize their mass production and implementation in agriculture, particularly feed production.

Organic agriculture plays a vital role in promoting environmental sustainability and safeguarding public health by minimizing the use of synthetic chemicals and preserving soil fertility. Biofertilizers, as integral components of organic farming practices, offer a natural and eco-friendly alternative to conventional fertilizers. By harnessing the power of beneficial microorganisms, biofertilizers enrich the soil with essential nutrients, improve soil structure, and enhance plant growth. The Republic›s organic agricultural sector is witnessing a steady expansion, emerging as one of agriculture’s swiftest-growing domains. Biological fertilizers, widely employed in organic farming, are currently experiencing significant demand among farmers. The study scrutinized the impact of the indigenous Armenian biofertilizer “Green Mix” on the bio-morphological and biochemical parameters of bell pepper varieties Loshtak, and Hayk. The findings underscored the substantial benefits of the “Green Mix” biofertilizer, evidencing enhanced growth and development processes alongside improved quality metrics of fruits and seeds. Notably, applying “Green Mix” resulted in heightened yield, subsequently bolstering profitability levels. This research highlights the pivotal role of innovative biofertilizers in augmenting agricultural productivity while fostering sustainability practices. As organic farming continues gaining traction, such localized solutions promise to advance agricultural practices in the Republic of Armenia.