COMPOSITION CONTAINING PLANT

摘要

PROBLEM TO BE SOLVED: To obtain a composition capable of continuously growing phytoplanktons by making the composition include at least a water-absorbable nonionic polymer, water and a plant capable of growing in the presence of water and light. SOLUTION: This plant-containing composition comprises at least a plant capable of growing in the presence of water and light, a water-absorbable nonionic polymer and water. The water-soluble nonionic polymer is preferably an N-vinylcarboxylic acid amide polymer derived from monomers containing >=50 wt.% of an N-vinyl carboxylic acid amide of the general formula: CH2 = CHNR<1> COR<2> (R<1> and R<2> are each independently H or a lower alkyl group, or R<1> and R<2> together form a C3 H6 group). The N-vinyl carboxylic acid amide- based polymer is preferably a crosslinked polymer.