条件筛选
-
Key technical points for moving and hardening cotton seedling nutritional blocks
Moving and hardening the blocks is an important measure in the management of seedbeds for cotton nutritional block seedling raising. Its main benefits are: first, it can break off the tip of the cotton seedling's main root so that the upper part grows slowly, stimulate lateral root development, make the plant short with thick stems and many lateral roots, and improve cotton seedling quality; second, after the blocks are moved, air circulates around the roots and water dissipates quickly, which not only can enhance root activity...