[Effect of alumunium application on the soybean growth and formation of root nodules]
1995
Rumyati | Ellyzarti (Universitas Lampung, Bandar Lampung (Indonesia). Fakultas Matematika dan Ilmu Pengetahuan Alam)
Soybean seeds were inoculated with Rhizobium sp, then germinated. The seedling (about 15 cm in length), were transplanted into growth media of a modified Hoagland solution added with aluminum, whose concentrations were 0,5, 10, 20, 40 ppm. The treatments media were renewed every week. The results showed that the growth and formation of root nodules of soybeans were inhibited by aluminum. The plants growth and dry matter yield were lower with a higher concentrations of aluminum in the growing medium. The nutrient uptake (N, P, K, Ca, and Fe) were decreased by the increasing aluminum concentration in the growing medium. Although the nutrients uptake decreased with the increase in alumunium concentration in the growing medium, the nutrient deficiency symptoms were not shown by plants
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