BOOKS - VEGETABLE GARDEN AND FARMING - Корма и кормление пчёл
US $8.49
458931
458931
Корма и кормление пчёл
Author: Г.Ф.Таранов
Year: 1986
Format: PDF
File size: 12.4 MB
Language: RU
Year: 1986
Format: PDF
File size: 12.4 MB
Language: RU
The book contains information about the main bee feeds (nectar, cedar, pollen, perg and their substitutes), their chemical composition and physiological action, about the possibilities of replacing honey with sugar and pollen with other substances absorbed by bees. Described are methods of providing bees with food at different times of the year, preparing and feeding them to bees.