Abstract:

Three types of seaweed extract in maize seedling by Hydroponic culture trail, by measuring the corn root activity and nitrate reductase, draw the conclusion: three types of seaweed extract could all increase dry matter accumulation of maize, fermentation seaweed extract, ordinary seaweed extract treatment with contrast of differences were significant level, nitrate reductase activity in intermediate level fermentation seaweed extract in was the highest of 74.42 μg/(g?h), followed by ordinary seaweed extract in the treatment of 72.32 μg/(g?h). The amount of seaweed extract in the fermentation of root vigor highest 1.576 mg/(g?h), high level and intermediate level fermentation seaweed extract common root vigor of the seaweed extract take second place were 1.505 mg/(g?h), 1.503 mg/(g?h). the effect of sodium alginate was less than others.