A mixed culture, N 1~N 6, which is able to treat wastewater of oil field efficiently, was screened and identified as the mixture of six strains of bacterium.

An Analytical Review on the Performance of Cultivar Mixture of Triticeae Crops;

The dynamical studies on biomass, quality and interspecific competition of oat (Avena sativa) and vetch(Vicia sativa) in both monoculture and mixture was conducted on the border of crop and ranch regions in north China.

The dynamical studies on biomass, qualities and interspecific competition of rye (Secale cereale) and vetch (Vicia sativa) in both monoculture and mixture were conducted on the border of crop and rang regions in north China.

The biomass changes of annual mixture pastures of Sorghum sudanense plus Phaseolus angularis and Sorghum sudanense plus Phaseolus calcartus were examined in this study.