[Effects of combined application of biochar with organic amendments on enzyme activity and microbial metabolic function of carbon sources in infertile red soil].

To improve carbon (C) sequestration and soil fertility of red soil, a two-year (2017 and 2018) field experiment was conducted to investigate the effects of two organic amendments (, corn straw and sheep manure) applied alone or combined with biochar on soil nutrient content, enzyme activities involved in C cycling, and microbial substrate utilization rate in infertile red soil. There were six treatments, including control (non-amendment), corn straw, sheep manure and across biochar treatments (without and with biochar amendment, respectively). The organic amendments and biochar were applied in 2017 and 2018.

[Effects of Nitrogen Fertilizer Management on CH and NO Emissions in Paddy Field].

Methane (CH) and nitrous oxide (NO) are two extremely important greenhouse gases in the atmosphere. Nitrogen fertilizer is an important factor affecting CH and NO emissions in rice fields. Rational application of nitrogen fertilizer can not only promote high yields of rice but also reduce greenhouse gas emissions.

[Effects of different fertilization regimes on soil fungal communities under Phyllostachys violascens stand].

In order to investigate the effect of fertilization on soil fungal community of Phyllostachys violascens stand, we characterized the abundance and community structure of soil fungi using the methods of terminal restriction fragment length polymorphism (T-RFLP) and real-time quantitative PCR. The experimental treatments included blank control (CK), chemical fertilizer (CF), organic manure (M), mixture of chemical fertilizer and organic manure (CFM) and mixture of chemical fertilizer and organic manure plus mulching (CFMM). The results showed that fungal community structure and diversity were markedly affected by different fertilization regimes.

[Effects of bamboo charcoal on the growth of Trifolium repens and soil bacterial community structure].

The effects of addition rates (0, 3% and 9%) and particle sizes (0.05, 0.05-1.