[Nitrous Oxide Production in Response to Oxygen in a Solar Greenhouse Vegetable Soil].

To explore the sources of peak nitrous oxide (NO) flushes in solar greenhouse vegetable field, an experiment was conducted with two conventional vegetable soils under different initial volume fractions of oxygen (O) (0%, 1%, 3%, 5%, and 10%). A robotized incubation system was employed to analyze the gas kinetics[O, NO, nitric oxide (NO), nitrogen (N), and carbon dioxide (CO)] every 6 or 8 h and calculate the NO/(NO+NO+N) index. Sodium chlorate (NaClO) was used to inhibit the oxidation of NO to further explore the relationship between NO and nitrite (NO).

[Occurrence, Distribution and Ecological Risk of Aantibiotics in Surface Water of the Gonghu Bay, Taihu Lake].

In order to assess the contamination degree and ecological risk of antibiotics in Gonghu Bay, Taihu Lake, the contamination characteristics of four kinds of antibiotics (tetracycline, quinolones, sulfonamides and macrolides) in surface water of the Gonghu Bay were analyzed using high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS). The results showed that 13 of the 16 target antibiotics were detected in the Gonghu Bay. The mass concentrations of the 13 antibiotics ranged 0.

Combining maxRatio analysis with real-time PCR and its potential application for the prediction of Meloidogyne incognita in field samples.

Diagnosing and quantifying plant-parasitic nematodes is critical for efficient nematode management. Several studies have been performed intending to demonstrate nematode quantification via real-time quantitative PCR. However, most of the studies used dilution of DNA templates to make standard curves, while few studies used samples with different nematode numbers to make the standard curve, resulting in a high standard error.