金钱松播种育苗技术OA

This article summarized the sowing and seedling cultivation techniques for Pseudolarix amabilis through aspects such as mother tree selection,seed treatment,nursery site preparation,and seedling management.In terms of tree selection,it is advisable to choose single plants with a tree age of 20 to 30 years and robust growth;the seed collection period is preferably from early October to early November.After the seed scales naturally split,the seeds are separated through mechanical rubbing.Short-term and long-term storage methods respectively adopt outdoor cellar storage and low-temperature dry storage techniques,and strict quality control of the seeds is carried out.Select a plot that faces the wind from the south and is flat,with convenient drainage and irrigation.The soil should preferably be slightly acidic sandy loam or light loam,and the soil layer thickness should be more than 50 cm.The seeds should be pre-treated using the gradient temperature control method.The sowing should be precisely controlled with the sowing amount and depth to promote uniform emergence of seedlings.During the seedling stage,management focuses on timely water and fertilizer regulation,integrated prevention of diseases and pests,and reasonable shading measures.This article provides a reference for the sowing and seedling cultivation of Pseudolarix amabilis.