Reliable and up-to-date data on every soil segment of the land areas cultivated for the contemporary land utilization is of vital significance.
Currently, the efficient planning and control over the agricultural activities is hardly possible without any reliable and updated information on the yield and agricultural soil types, whereas implementation of drones in the field of land management and in agriculture, on the whole, is one of the most perspective directions, since unlike the artificial sattelites, they provide more precise and guided images for the given location.
The aim of the research is to produce the digital field model and NDVI map for the crops by applying Parrot Disco-Pro AG drone kit.

The article considers the issue related to the disclosure of the reasons for the abrupt reduction of resistance force factors in case of plants stems vibro-cutting in dense medium through theory-based investigations.
The computation scheme of the liquid motion in the vicinity of vibro-blade has been recommended, which enabled to derive differential equation of the motion resulted under the impact of interaction forces between the vibro-blade and environment.
It has been proved, that the liquid in the vibro-blade vicinity is subjected to rapid damped oscillation, due to which the environmental resistance forces and the energy consumption rates are reduced in about 20 times against the same indices recorded in case of vibrationless cutting.

The study of the shoe lining in the drum brake mechanism is of paramount importance to evaluate its wear regularity. Thereto, the computational scheme of the drum brake-shoe mechanism has been designed, the calculation formulae of tangential and radial components of the external points displacement in the lining have been analyzed, by means of which their numerical values have been determined, the diagram of the radial displacements has been designed and compared with descriptors of the wear change along the friction lining, according to which they alter with similar regularities.

This study aims to assess the economic feasibility of biogas production from the biomass of Miscanthus Giganteus. Three scenarios have been applied based on its productivity and stand’s life. The breakeven prices per tonne for each scenario were calculated and sensitivity analysis was conducted with respect to various factors. Afterward, the cost per gigajoule was calculated and compared to Natural Gas. The cost per gigajoule of Miscanthus ranges from 920-3033 AMD based on the sensitivity results, hence it can be quite cheap alternative depending on the yield, discount rates and rhizome costs.

This article studies the financial feasibility of a medium-scale business model operating in dry fruit processing sector, which can also provide an economic insight for those who want to transform the substantial fruit processing into a well-performing business enterprise. To evaluate how viable the business is, the main capital budgeting techniques have been applied. The financial model shows that the business is profitable with positive net present value, profitability index equal to 1.20, payback period of 4.3 years and internal rate of return (IRR) greater than the weighted average cost of capital.

The life cycle of Colletotrichum lindemuthianum fungus, susceptibility of Armenian bean varieties to anthracnose disease, as well as its development dynamics have been investigated in conditions of Lor community in Aremenia.
Preventive measures have reduced the winter stock of pathogen infection and intensity of the disease development, while double application of Quadris and Revus Top fungicides during the vegetation period suppressed the development of anthracnose by 86.3-88.6 % and 91.6-92.4 %, respectively, as compared to the recorded indices in the control variant.
Thus, the recommended fungicides can be used alternately to combat bean anthracnose.

The disturbance of equilibrium in agroecological systems of Voghjaberd community and their productivity decrease are mainly due to the strong landslides occurred in that area and to the erodibility of land resources. In the mentioned community 500 ha land area is highly prone to landslides, while 200 and 380 ha land areas are averagely and slightly susceptible to landslides respectively. About 69 % of the agricultural lands are strongly and averagely eroded.
Thus, in the landslide areas it is necessary to establish anti-landslide forest strips, while to mitigate erosion in the steep slopes it is necessary to implement perennial plant sowing and fertilization with organic fertilizers in the arable lands and rangelands.

The aim of the research was to identify the most efficient cluster level and crop harvesting period (day) for tomato seed production, as well as to find out which seed breeding options will ensure higher quality indicators. The study objects were mid-early ripening tomato variety “Anahit 351” and mid-ripening varieties “Lia” and “Eraz”.
Experimental results showed that tomato seeds taken from the fruit of second cluster after 10 days of ripening have provided highest seed weight, high germinability and germination energy meanwhile ensuring high productivity.

Hailstorm causes huge damages to the orchards and vineyards in the Republic of Armenia. Particularly the yield, annual and perennial shoots, as well as the fruiting organs are badly damaged.
A fertilizer has been synthesized and applied by our research group, by means of which the artificially simulated injuries on the shoots or those caused by the hailstorm are recovered with noticeable intensity.
According to the experimental data the artificially simulated wounds on the shoots of “Victoria” plum tree have been well recovered, the index of which makes 35-45 % in the control variant, while in the variant where Complexon-3 has been twice administered it has amounted to 95-99 % with slight differences.