DOI：10.31220/agriRxiv.2021.00101

Implications of soil nitrogen enhancement on the yield performance of soybean ( Glycine max ) in cadmium-polluted soil.

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  Abstract: Abstract The growth, development and yield of important crop plants like soybean ( Glycine max ) are constantly under threat by continuous inputs of cadmium in the biosphere as a result of various industrial activities. This study investigated the level to which, addition of nitrogen fertilization can enhance plant survival, growth and yield development in a cadmium-polluted. Three accessions of Glycine max (TGm1, TGm2 and TGm3) were sown in a 12 mg/kg-cadmium polluted, which was thereafter amended with urea (FU), ammonia (FA), and ammonium nitrate (FN) singly and in combinations of equal proportions. A non-fertilized Cd-polluted soil and a general control constituted the negative and positive controls. Results showed that although N application did not enhance yield dispositions of soybean in Cd polluted soil, significant impact on vegetative development was noteworthy. Compared to yield of control plants, cadmium pollution imposed a 26.1% reduction in per plant yield in TGm-1, compared 1.71% in TGm-3. Generally, addition of nitrogenous fertilizer further suppressed crop yield by as much as 80% in plants sown in cadmium-polluted soil. However, application of ammonia fertilizer to TGm-2 improved its yield performances in the cadmium-polluted soil.

  Key words: cadmium; polluted soil; glycine max; yield; tgm; soybea

  提交时间：2021-01-01

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• 序号	提交日期	编号	操作
  1	2021-01-01	10.31220/agriRxiv.2021.00101V1	下载

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