Effect of rare earth on growth of soybean plants under hydroponics
1993
Bai Baozhang (Jilin Agricultural Univ., Changchun (China). Dept. of Agronomy)
The experiments showed that the optimum concentration of rare earth elements (5 and 10 ppm) can promote the growth of soybean plants, increase plant length and leaf area and stimulate the growth of root system and accumulation of dry matter. Besides, rare earth elements increased photosynthetic pigment content in chloroplast and leaf specific weight
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