[Energy processes modelling in weed tissues and weed control]
2000
Sirvydas, A. | Cesna, J. (Lithuanian Univ. of Agriculture, Noreikiskes (Lithuania))
Physical methods are applied in weed control in ecological agriculture. Applying method of thermal weed control high temperature stream is created in the plant media. Economizing heat energy it is purposeful to change the method of weed control. It is suggested that only plant stem was effected with a ring of 50-10 mm width. For this purpose a special equipment must be created. Its principal scheme is presented in Fig. 1. Energy balance of plant stem is created for the gas and water steam media. The model of thermal injury process of a plant stem is described mathematically. The method of calculation of temperature regimen of a plant stem is discussed.
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