PASTE AGENT FOR NURSING CULTURE SOIL, NURSING CULTURE SOIL AND METHOD FOR PRODUCING NURSING CULTURE SOIL, AND SOLIDIFICATION OF NURSING CULTURE SOIL

摘要

PROBLEM TO BE SOLVED: To obtain a paste agent for a nursing culture soil capable of stably forming soil-attached seedlings having elasticity in its root pot part, excellent in getting-out property from a nursing pot and having little mechanical resistance on mechanized transplanting by forming of a specific polymer whose acidic groups is the salt of a divalent cation in a specific part. SOLUTION: This paste agent is composed of a polymer having an anionic degree of 0 and =70 mol%, and =30 mol% of the acidic group of the polymer is the salt of a divalent cation. Here, the acidic group of the polymer is preferably at lest one kind selected from carboxyl group and its salts, and sulfonic acid group and its salts, and further the divalent cation is preferably calcium ion.