Abstract
A field study was carried out on a sandy loam soil at the KVK farm Janjgir Champa , Chhattisgarh to study the effect of enriched fly ash (FA) on rice and soil characteristics of inceptisol during kharif 2013-14 . The test crop was rice var. MTU-1010. The application of different treatment FA combinations increased paddy yield compared to 100% GRD. However the control treatment failed to produce the yield in degraded land. Among the treatments, the 75% GRD +60t FAha -1 +5t FYMha-1 gave highest paddy yield (42.6 q ha-1) than all other treatments. The straw yield was not significantly influenced by FA treatments, but the beneficial effect of enriched fly ash on higher rice straw yield was observed. Application of 75% GRD + fly ash@ 60 t ha -1 + FYM @ 5 t ha-1 recorded the highest soil available phosphorus, potassium and zinc compared to other treatments and soilavailable N was highest in application of 75% GRD + fly ash@ 40 t ha -1 + FYM @ 5 t ha -1 . The soilavailable Cu,Mn and Fe content were not significantly influenced by different combination of FYM, FA and Fertilizers. The organic carbon storage on degraded land increased significantly with the application 75% GRD + fly ash@ 60 t ha -1 + FYM @ 5 t ha-1(6043.33 kg ha-1) than the 100% GRD and control .
Highlights
Coal is a predominant source of global energy; at present in India it is major source of electrical energy in thermal power plants, which produce 175 million tonnes per year fly ash, which would require about 40,000 hectares of land for the construction of ash ponds (Lal et al, 2012)
The soil belongs to sandy loam texture and the soil status was low in available nitrogen, phosphorus and high in potassium (Table 3)
FAha-1 + 5 t FYMha-1, which was at par with 75% general recommended dose (GRD)+ 40 t FAha-1+5t FYMha-1
Summary
Coal is a predominant source of global energy; at present in India it is major source of electrical energy in thermal power plants, which produce 175 million tonnes per year fly ash , which would require about 40,000 hectares of land for the construction of ash ponds (Lal et al, 2012). The effect of different treatments was evaluated in terms of soil available major and micro nutrients at crop harvest and the crop yield. 1 and Table 2, 3).The application of different treatment combinations except 75% GRD + 20t Fly ash ha-1 with and without FYM increased
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