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Chinese Journal of Applied Ecology ›› 2001, Vol. ›› Issue (5): 731-734.

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Effects of rice straw mulch and water-retaining agent on soil properties and crop yield

SUN Jin, XU Yangchun, SHEN Qirong, WAN G Yibing   

  1. College of Natural Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095
  • Received:2001-01-04 Revised:2001-05-18

Abstract: A field experiment was carried out to study the effect of water retaining agent and straw mulch on crop yield and soil properties on sandy soil with serous seas onal drought in Donghai County,Jiangshu Province.Water retaining agent was used at four levels of 1,2,3 and 6g穔g-1 soil,respectively,and the application rate of rice straw was 1500,3000,4500 and 6000kg穐m-2,respectively.Resul ts showed that two approaches could stimulate the growth of wheat and increase wheat yield by 10% and 12.5%,respectively.Water retaining agent and rice straw m u lching could also prevent the evaporation of soil water,and thus improve the wat er content,bulk density,temperature and available nutrients content of the soil.

Key words: Water retaining agent, Rice straw mulch, Soil water, Wheat yield

CLC Number: