FIELD: polymer materials.
SUBSTANCE: invention provides biodegradable anionic polymers including recurring polymeric subunits preferably formed from dicarboxylic monomers such as maleic anhydride, itaconic anhydride, and cytraconic anhydride. Polymer synthetic is accomplished via free radical polymerization. Polymers can form complexes with ions and/or are appropriate to be mixed with fertilizers or seeds to produce agriculture-acceptable compositions. Preferred industry products can be placed into leaves or introduced into ground in the vicinity of growing plants.
EFFECT: improved assimilation of nutrients by plants.
122 cl, 2 dwg, 3 tbl, 20 ex
