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INFLUENCE OF TERMS OF GATHERING OF FRUITS OF THE APPLE-TREE ON STORAGE PERIOD
06.00.00 Agricultural sciences
Description
In article the review of results of studying of influence of harvest date of fruits on storage period of fruits of the zoned grades of Golden Delicious and Renet Simirenko apple-trees is given. As a result of this work, the efficiency of influence of harvest date of fruits on quality and duration of storage in usual atmosphere is proved
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Description
The effect of glue filling of internal voids of the surface tracheids and their relative position in the radial wood surfaces gluing on the strength of adhesive joints is theoretically considered. It is shown that for the maximum joint strength it is necessary that the amount of deposited adhesive provides filling of all cavities tracheids of wood surface and formation of the intermediate layer between the substrates
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Description
In the article it is offered to count the spatial sign with provision for mosaic-tiered structure of wood when estimating rising trees. It is noted that the diameter of stems has mediated (indirect) relationship with average distance to the nearest tree
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SOIL FERTILITY IN DEPENDENCE ON CROP CULTIVATION
06.00.00 Agricultural sciences
Description
Results of researches carried out in stationary multi factorial experience, plotted in 1991, were generalized in the article. Different influence of cultivated crops in crop rotation on agro physical properties of active fertile layer of old irrigated leached chernozem was determined on the base of material generalization. Positive role of alfalfa for improvement of agro Physical soil properties were revealed. Quantity of agronomically valuable aggregates and water proof of soil structure are increased because of it.
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Description
The results of research of principle for modulation of continuous laser ray with more than 1 MHz frequency are representing in this article. The evaluation of signal level, which is forming by the volume of heterogeneous systems by diagnosis for their parameters was made
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TURBULENCE THEORY AND ROUGHNESS DENSITY EFFECT MODEL
01.00.00 Physical-mathematical sciences
Description
The model of the turbulent boundary layer over a rough surface is presented. The model is based on the special type of transformation of the Navier-Stokes equation. The turbulent boundary layer in this model is considered as a flow above the rough surface gener-ated by the viscous sublayer (the dynamic roughness effect). The roughness density effect on the shift of the mean velocity logarithmic profile has been estimated in the case of 2D and 3D roughness elements
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06.00.00 Agricultural sciences
Description
This article presents the information about influence of way of soil processing on its density and formation of peas root system
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EFFICIENCY OF SELECTION ON HIGH TILLERING AT VARIOUS DENSITY OF PLANTING OF RICE PLANTS
06.00.00 Agricultural sciences
Description
In the article, the estimation of efficiency of selection on high tillering is given at various planting density. For the analysis used plants of variety Lampo with high tillering ability and varieties the Virazh and Ko-mandor - with weak tillering ability, and hybrid popu-lations F3 from their crossing, selected on traits high and low tillering from F2. Plants ¬ placed on plots in three variants: 2×15, 15×15, 30×30 cm. It is estab-lished that distinctions on tillering between “+” and “–” selection in following generation remain, though the value of given trait at hybrid plants decrease. Selection of highly tillering forms at usual density (2×15 cm) has shown high efficiency, because the tillering is caused by more influence of genetic factors, than environment in the given variant
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