BOOKS - PROFESSIONS AND CRAFTS - Правила, инструкции и методические указания по пчело...
US $5.68
736181
736181
Правила, инструкции и методические указания по пчеловодству
Author: Коллектив авторов
Year: 1974
Format: PDF/DJVU
File size: 9 MB
Language: RU
Year: 1974
Format: PDF/DJVU
File size: 9 MB
Language: RU
In the general system of agriculture of the republic, beekeeping is an integral part of crop production, its "pollination workshop." However, as a result of non-compliance with the basic requirements for caring for bees and keeping them in apiaries, there are still a large number of weak bee colonies, which does not allow the full use of bees in pollinating gardens, sunflower crops, vegetable and melons and other insect-pollinated crops, as well as increase the productivity of beekeeping.