Practical materials for farmers: growing technologies, crop protection, crop nutrition, seeds and farm economics. 660 articles in 34 sections.
Depending on the variety, rootstock, age of the tree, and growing conditions, the crown of naturally growing trees may be broom-like, pyramidal (conical), inverted-conical, spherical, or spreading to…
It was applied long before people learned to fertilize plants with mineral nutrients and protect them from pests and diseases. The earliest references to pruning date back to…
ГОСУДАРСТВЕННЫЙ СТАНДАРТ УКРАИНЫ. СЕМЕНА СЕЛЬСКОХОЗЯЙСТВЕННЫХ КУЛЬТУР. СОРТОВЫЕ И ПОСЕВНЫЕ КАЧЕСТВА. Технические условия