Journal of Ecology and Rural Environment ›› 2011, Vol. 27 ›› Issue (5): 101-103.doi:

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Effect of Soil Amendments on Gronwth of Soybean in Coal Gangue Contaminated Soil

MA  Shou-Chen, Lü Peng , LI  Chun-Xi, GUO  Zeng-Chang, NIE  Xiao-Jun   

  1. Henan Polytechnic University
  • Received:2011-05-05 Online:2011-09-25 Published:2011-10-12
  • Contact: MA Shou-Chen Henan Polytechnic University E-mail:mashouchen@126.com

Abstract: In a pot experiment using coal gangue contaminated soil with fly ash and dairy manure dung,separately or in combination,as soil amendment,soybean was planted to study effects of the amendments on the growth,photosynthesis and yield of th plant.Four treatments were designed:CK(control),Treatment T1(fly ash),Treatment T2(dairy manure),T3(fly ash and dairy manure in combination).Results show that all 3 treatments improved soybean in plant height,leaf area and number of root nodules,but followed the order of T3>T2>T1 in effect at all the growth stages,and increased chlorophyll content and photosynthesis rate of the soybean at the flowering and seed-filling stages,more significantly in Treatment T3 than in Treatment T2 and Treatment T1.Besides they also significantly raised pod number perplant,100-grain weight,seed weight per plant and yield.The yield of the plant was in creased by 68.47% in Treatment T3,by 40.99% in Treatment T2 and by 30.63% in Treatment T1 over that in control.

Key words: soybean, coal gangue, fly ash, dairy manure, soil improvement

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