Direct and Residual Effect of Coal Ash, Organic Materials and Chemical Fertilizers... http://127.0.0.1/xmlui/handle/123456789/8696 2026-05-12T15:19:51Z 2026-05-12T15:19:51Z Direct and Residual Effect of Coal Ash, Organic Materials and Chemical Fertilizers on Crops and Soil Productivity in Rice Based Cropping System Rautaray, Sachin Kanta http://127.0.0.1/xmlui/handle/123456789/8697 2024-05-09T11:47:04Z 1999-12-01T00:00:00Z Direct and Residual Effect of Coal Ash, Organic Materials and Chemical Fertilizers on Crops and Soil Productivity in Rice Based Cropping System Rautaray, Sachin Kanta 1999-12-01T00:00:00Z