Plowing theory

• Autorzy: Szwaj S , Pukos A.

Warianty tytułu

EN

Teoria orki

• Języki publikacji: EN

Abstrakty

EN

Orka jest najbardziej skomplikowanym i energochłonnym zabiegiem uprawowym w rolnictwie. Jednym z jej głównych celów jest uzyskanie gęstości objętościowej gleby optymalnej dla wzrostu i rozwoju roślin. W pracy rozpatrzono problem orki w sposób teoretyczny i założono, że skiba podlega czterem programom obciążenia w trakcie orki. Dwa z tych obciążeń są odkształceniami polegającymi na zginaniu, a pozostałe dwa mogą być przedstawione jako obroty. Założono różne kształty odkładnic (koło, elipsa, hiperbola i parabola) i przedstawiono równania kinetyki działania pługa, odkształcenia ośrodka glebowego, tworzenia się skiby i jej ruchu po odkładnicy. Mogą one być wykorzystane do przewidywania efektów dynamicznych i zmian objętościowych prowadzących do przewidywania końcowej gęstości objętościowej. Rozważania teoretyczne zostały zilustrowane przy pomocy rysunków i danych eksperymentalnych.

PL

Plowing is the most complicated and energy consuming tillage process in agricultural soils. One of its main goals is to obtain a soil bulk density optimal for the growth of plants. The plowing problem has been considered theoretically in the present paper and it was assumed that the cold undergoes four loading processes during plowing. Two of them are bending deformations whereas the other two can be represented by rotations. Different moldboard shapes (circle,ellipse, parabola and hyperbola)are assumed and the moldboard shapes together with the plow bottom action,soil mass deformation, clod formation, and motion over the moldboard are introduced in the form of the kinetic equations. They can be used for the prediction of dynamical effects and volume changes resulting in the prediction of the final bulk density. Theoretical consideration have been illustrated using figures and experimental data.

Słowa kluczowe

EN

soil mechanics; tillage; mass deformation; plowing; soil mass; soil plowing; soil dynamics; agricultural soil

• Wydawca: -
• Czasopismo: Acta Agrophysica
• Rocznik: 2000
• Tom: 25
• Opis fizyczny: p.1-57,fig.

Twórcy

autor

Szwaj S

autor

Pukos A.

Bibliografia

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