| 摘要 |
The growth of plants is promoted using a water-soluble cationic polymer obtained by polymerization of a quarternary ammonium compound of the following formula (I) alone or together with other vinyl monomers, <IMAGE> (I) wherein R1 is hydrogen or methyl, R2 and R3 are each a lower alkyl, R4 is a lower alkyl, allyl, a hydroxy(lower)-alkyl, benzyl or -CH2COO(CH2)mCH3 group (in which m is 0 or 1), X is a halogen or methylsulfate and Y is -O(CH2)n-, -NH-(CH2)n- (in which n is 1 to 4) or <IMAGE> |
