Economic efficiency of land reclamation and challenges to its development: Evidence from the Republic of Tatarstan

Khismatullin, Marsel; Хисматуллин, Марс; Raheem, Ullah

doi:10.24891/re.20.12.2335

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Ключевые слова: подпружиненны й лемех, комки почвы , движение частицы почвы , почвенный пласт, колебания, энергия колебаний. [9,10,11]. Более полного понимания протекающих при этом процессов можно достичь при использовании методов математического моделирования [12,13,14].…”

Section: Doi удк 631171unclassified

Study of the Interaction of a Spring-Loaded Ploughshare With Soil Layer Particle Based on the Solution of the Lagrange Equation of the Second Type

Yudaev,

Abramov,

Ivankina

et al. 2023

Vestnik of Kazan State Agrarian University

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Potato harvesting is an important process in crop growing technology. When implementing it, it is not necessary to completely crumble the surface layer of the soil, but only to break up its clods, which is achieved by introducing a spring into the design of the ploughshare. During translational movement, a force arises directed in the opposite direction, which compresses the spring. When the force acting on the ploughshare decreases, it expands, and when it increases, it contracts. The resulting vibrations are transmitted to the soil clods and, with sufficient force, their destruction occurs. Vibrations of the share lead to a change in its kinetic energy. Instantaneous energy increases and decreases, while the average energy remains constant. More complete information about the interaction of the ploughshare with the surface layer can be obtained through mathematical modeling. The purpose of the study is to determine the compression coefficient of the spring. The simulation is based on solving Lagrange equations of the second type in the Cartesian coordinate system with initial and boundary conditions determined by the design of the ploughshare. When compiling a mathematical model, the following were taken into account: – the gravity of the ploughshare; – gravity of the soil layer; – the elastic force of the spring, which creates additional vibrations; – cutting force of the soil layer; – the friction force of the soil layer on the surface of the ploughshare, – the normal reaction of the supporting surface of the ploughshare and the angle of its entry into the surface layer. Modeling made it possible to determine changes in the instantaneous value of kinetic energy, which ranges from 0 to 3.6 J. The optimal amplitude of oscillation of the share during forward motion at a speed of 6 km/h was 0.02 m. The spring stiffness coefficient for loamy soils of the Ryazan region should be in the range of 2200…3000 N/m.

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Section: Doi удк 631171unclassified

Study of the Interaction of a Spring-Loaded Ploughshare With Soil Layer Particle Based on the Solution of the Lagrange Equation of the Second Type

Yudaev,

Abramov,

Ivankina

et al. 2023

Vestnik of Kazan State Agrarian University

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“…; коэффициент сцепления колес с почвой K scep -0,6; коэффициент сопротивления перекатыванию колес f perek -0,1. Для улучшения экологических аспектов [14,15,16], верхний предел скорости, исходя из используемых распылителей [17] Это влияет на длительность проведения работ, а значит и на потери урожайности зерновых культур от нарушения агротехнических сроков выполнения технологической операции [18,19,20]. 12-18.…”

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Study of the Optimal Parameters’ Stability of a Trailed Sprayer When Changing Working Conditions

Nurmiev,

Didmanidze,

Khafizov

et al. 2024

Vestnik of Kazan State Agrarian University

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Research was carried out to identify changes in energy costs and the stability of the optimal parameters of a trailed sprayer when changing the numerical values of factors affecting its operation, to determine the possibility of stable operation in various conditions. The work was carried out using the example of a trailed sprayer for a 4K4a tractor, type MTZ-82, with an engine power of 80 hp. (optimal working width – 32 m, speed – 10 km/h, wheel diameter – 2 m, tank volume – 5000 l, wheel profile width – 0.2 m, sprayer weight distribution coefficient on its support wheels – 0.83) at changing the following operating conditions of the unit: cultivated field area from 1 to 101 hectares, paddock length from 0.1 to 1.1 km, soil density from 1.1 to 1.7 g/cm3, tanker productivity from 100 to 700 l/min , grain yield from 15 to 70 c/ha, seasonal volume of work per unit from 100 to 3600 ha, application rate of preparations from 50 to 330 l/ha, number of weeds per unit field area from 10 to 460 pcs/ m2. With an increase in the numerical values of the first four of the listed factors that determine the operating conditions of the sprayer, the total energy costs decreased by 200...2800 MJ/ha, an increase in the values of the indicators of the other four factors of the system led to an increase in the total energy costs by 300...5300 MJ/ha. At the same time, the optimal parameters of the sprayer remained unchanged regardless of the variation in the factors under consideration.

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Growth of aridity and development of integrated land reclamation in the Republic of Tatarstan

Khismatullin

Хисматуллин

Klychova

et al. 2023

RETP

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Subject. The article addresses problems of organization of efficient and stable agricultural production in conditions of climate aridity in the Volga region. Objectives. The aim is to review the current state of the land reclamation industry in the Republic of Tatarstan, to elaborate recommendations for its further development. Methods. The study employs methods of comparison, systematization, and generalization of data. Results. We investigated the dynamics of agrometeorological data for 2006–2020 in the Republic of Tatarstan and revealed a trend towards an increase in climate aridity in the Volga region. The assessment of economic efficiency of irrigated agriculture enabled to state that potato yield increases by four times due to irrigation. Watering perennial crops helps provide the livestock industry with a reliable feed base. Conclusions. Despite the high economic efficiency of agricultural land reclamation, the number of agricultural producers introducing it into production activities remains low due to the high cost of restoration, construction and operation of land reclamation facilities, scarce technical and financial resources at agricultural enterprises.

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Economic efficiency of land reclamation and challenges to its development: Evidence from the Republic of Tatarstan

Cited by 3 publications

References 12 publications

Study of the Interaction of a Spring-Loaded Ploughshare With Soil Layer Particle Based on the Solution of the Lagrange Equation of the Second Type

Study of the Interaction of a Spring-Loaded Ploughshare With Soil Layer Particle Based on the Solution of the Lagrange Equation of the Second Type

Study of the Optimal Parameters’ Stability of a Trailed Sprayer When Changing Working Conditions

Growth of aridity and development of integrated land reclamation in the Republic of Tatarstan

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