Author(s):

Mahendra Kaushik, Saurabh Jha, BS Parihar and PK Sinha

Abstract: The present investigation was carried out at the Instructional Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during kharif season of 2010. The experiment was conducted in soil locally known as kanhar belongs to order Vertisols. Higher grain and straw yield (38.79 and55.25 q ha-1) and total NPK uptake by rice (58.94,10.83and 103.78 kg ha-1 respectively) with the rice genotype MTU-1010 (V3) and higher fertility level as compared to the grain and straw yield of 33.71and 47.76 q ha-1 total NPK uptake 58.16, 10.76 and 103 kg ha-1 respectively with the medium fertility level and rice genotype R-RF-69 (V1).The yield and nutrient uptake by rice were lower with the lower fertility level and IR 84899- B183. On the other hand, the available status of NPK, micro nutrients and PH, EC and OC in soil at crop harvest were not influenced by rice genotypes and fertility levels. Soil test based major available nutrients were found to be higher with higher rate of application of N, P and K fertilizers, whereas micronutrients availability showed the reverse trend.

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