Title: Effect of plant growth on the distribution and forms of soil nutrients in the rhizosphere
Abstract:Abstract The effect of plant growth on the distribution and forms of soil nutrients in the rhizosphere was studied by growing plants in rhizoboxes. An experiment was carried out in a growth chamber fo...Abstract The effect of plant growth on the distribution and forms of soil nutrients in the rhizosphere was studied by growing plants in rhizoboxes. An experiment was carried out in a growth chamber for 17 d with three treatments, i.e. maize (Zea mays L.), kidney bean (Phaseolus vulgaris L.), and no plants. After the experiment, soil samples were collected up to about 50 mm from the central compartment (C. C.) in which roots were allowed to grow, and analyzed for the soluble, exchangeable, and total amounts of nutrients. Plant samples were also analyzed for their nutrient contents. The pattern of nutrient distribution in the rhizosphere varied among the types and forms of elements. In both maize and kidney bean, the concentrations of soluble P, K, and N decreased significantly at the C.C., up to 4 mm and up to 10 mm from the C.C., respectively. The magnitude of their depletion reflected their rate of diffusion in soil. The concentration of exchangeable K decreased significantly up to 2 mm from theC.C., whe...Read More
Publication Year: 2012
Publication Date: 2012-01-04
Language: en
Type: article
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Cited By Count: 27
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Title: $Effect of plant growth on the distribution and forms of soil nutrients in the rhizosphere
Abstract: Abstract The effect of plant growth on the distribution and forms of soil nutrients in the rhizosphere was studied by growing plants in rhizoboxes. An experiment was carried out in a growth chamber for 17 d with three treatments, i.e. maize (Zea mays L.), kidney bean (Phaseolus vulgaris L.), and no plants. After the experiment, soil samples were collected up to about 50 mm from the central compartment (C. C.) in which roots were allowed to grow, and analyzed for the soluble, exchangeable, and total amounts of nutrients. Plant samples were also analyzed for their nutrient contents. The pattern of nutrient distribution in the rhizosphere varied among the types and forms of elements. In both maize and kidney bean, the concentrations of soluble P, K, and N decreased significantly at the C.C., up to 4 mm and up to 10 mm from the C.C., respectively. The magnitude of their depletion reflected their rate of diffusion in soil. The concentration of exchangeable K decreased significantly up to 2 mm from theC.C., whe...