3 years ago

Manipulation of nitrogen leaching from tea field soil using a Trichoderma viride biofertilizer

Sining Zhou, Xuliang Zhuang, Shengjun Xu, Shanghua Wu, Zhihui Bai, Guoqiang Zhuang, Cancan Jiang, Shuanglong Ma


With the increasing use of chemical fertilizers, negative environmental impacts have greatly increased as a result from agricultural fields. The fungus Trichoderma viride used as a biofertilizer can efficiently reduce nitrous oxide (N2O) emissions from subtropical tea fields in southern China. In this paper, it was further found that T. viride biofertilizer could alleviate nitrogen (N) leaching in tea fields. Gross N leaching was 1.51 kg ha−1 year−1 with no external fertilizer input, but when 225 kg N ha−1 year−1was applied, it increased to 12.38 kg ha−1 year−1 using T. viride biofertilizer but 53.46 kg ha−1 year−1 using urea. Stepwise linear regression analysis identified the factors responsible for N leaching to be soil nitrate concentration and soil interflow, simulated here using the water balance simulation model (WaSiM-ETH). Finally, mass-scale production of T. viride biofertilizer from waste reutilization using sweet potato starch wastewater and rice straw was found to be cost-effective and feasible. These procedures could be considered a best management practice to reduce N leaching from tea fields in subtropical areas of central China and to reduce pollution from other agricultural waste products.

Publisher URL: https://link.springer.com/article/10.1007/s11356-017-0355-x

DOI: 10.1007/s11356-017-0355-x

You might also like
Never Miss Important Research

Researcher is an app designed by academics, for academics. Create a personalised feed in two minutes.
Choose from over 15,000 academics journals covering ten research areas then let Researcher deliver you papers tailored to your interests each day.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.