The criteria for selecting high quality and strong seedlings from the jujube seedlings of strong seedlings are as follows: roots are intact, and branches and skins are not injured. The root seedlings must have a mother root (ie, abductor root) with a length of 20 cm and 4 to 6 fine roots with a diameter of 2 mm or more; The seedlings must have 6-8 lateral roots, seedling height 100cm or more, root neck diameter 1cm or more, mature shoots well, top buds full and full of growth, no major pests parasitic or attached to the whole plant; well-grafted seedlings with well-healed interfaces, grafting sites on the ground Above 20cm; seedling age 2 years or more.
Electronic Chemicals,Dicyandiamide Electronic Grade,Electronics Chemicals Industrial Grade,Standard Electronic Chemicals
Ningxia Darong Chemicals & Metallurgy Co., Ltd. , https://www.darong-cyanamide.com