Organic farming.

Cultivating an ecological conscience = essays from a farmer philosopher / by: (書目-語言資料,印刷品)

Managing and breeding wheat for organic systems = enhancing competitiveness against weeds / by: (書目-語言資料,印刷品)

Soil organic matter and its role in crop production by: (書目-語言資料,印刷品)

Managing energy, nutrients, and pests in organic field crops by: (書目-語言資料,印刷品)

Organic farming for sustainable agriculture by: (書目-語言資料,印刷品)

The coexistence of genetically modified, organic and conventional foods = government policies and market practices / by: (書目-語言資料,印刷品)

Organic farming = new advances towards sustainable agricultural systems / by: (書目-語言資料,印刷品)