Implications of organic management on yield, tuber quality and soil health in yams in the humid tropics

摘要: Global consciousness of food safety, health and environmental issues has stimulated interest in alternative agricultural systems like organic farming. Since information on farming tuber crops is meagre, a field experiment was conducted split plot design over five-year period at Central Tuber Crops Research Institute, India. The aims were to evaluate the impact organic, conventional traditional production yield, proximate composition mineral content tubers soil physico-chemical biological properties three species Dioscorea (white yam: D. rotundata, greater alata lesser esculenta). assigned main plots subplots. Organic (20.34 t ha -1 ) produced significantly higher yield practice (18.64 by 9%. All responded well management, which lowered bulk density particle slightly improved water holding capacity (by 15%) soil. quality with Ca (72.67 mg 100g ), dry matter, crude protein, K Mg contents. showed available K, 34% pH, 0.46 unit matter 14%. dehydrogenase enzyme activity (1.174 µg TPF formed g h population bacteria, fungi P solubilizers promoted 14%, 23%, 17% 22% respectively. Thus found be an eco-friendly management strategy yams for sustainable besides maintaining health. Technology involving farmyard manure, green manuring, neem cake, biofertilizers ash standardized.