Coating seeds with a certain seed coating developed in the Institute of Agricultural Sciences of the Lixiahe District of Jiangsu province is the key technology in cast-transplantation of no-plate dry-raised rice seedlings.

Effect of nitrogen application rate on morphological and physiological characters of rice dry seedbed seedlings;

Comparison studies of roots physiology activity between rice dry seedbed seedlings and wet seedbed seedlings;

Study on wilting reaction of dry nursery seedlings and physiological response to it;

This study was conducted to compare rice seedling quality in physiological and biochemical characteristics between dryland raised seedlings and wetland raised seedlings.

The results showed that dryland raised seedling was more favorable for growing vigorous seedlings,and had marked advantage to prolong the seedling age.

Application of growth promoting hormone and thrown planting technique in upland rice nursery can raise seedling emergence rate by 1 1～5 1% and seedling stand percent by 2 7%～8 5%, dwarf the plant, increase tillers and leaves, make root system flourishing, promote stem thick and enhance fresh weight.

Plantlets from upland rice nursery,when compared with seedlings from water-saturated rice nursery,were better in that their roots grew faster and the weight of roots increased quicker than that of shoots.