Preliminary Study on Optimized Conditions for Dry-cultivated Rice Seedling Planting

摘要

cqvip:The effects of soil moisture content,pot seedling buried depth,and pot seedling height on the survival rate and growth of dry planted seedlings were researched by field experiment. The results showed that the seedling survival rate and growth were enhanced with the increase of soil moisture content after pot seedling transplanting,but there was no significant difference in the survival rate and growth of seedlings with 85% and 100% of soil moisture content. Pot seedling buried depth was one of the important factors affecting the survival rate,and when the pot seedlings were buried 2 cm deep,the seedlings showed high survival rate and excellent growth. Under the same condition of soil moisture content and buried depth,seedlings with pot seedling height of 15 cm had the best survival rate and growth. Therefore,the optimized conditions for dry-cultivated rice seedling planting were soil moisture content of 85%,pot seedling buried depth of 2 cm,and pot seedling height of 15 cm.