Fig. 6From: Development of hydrogel based on Carboxymethyl cellulose/poly(4-vinylpyridine) for controlled releasing of fertilizersEffect of acidic (pH 2 and 4), neutral (pH 7) and saline (pH 8 and 10) swelling media on swelling behavior (SR %) by hydrogel CMC/P4VP within 24Â h of swellingBack to article page