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International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad soil hardiness in the puddled rice fields, lack of short duration varieties that could facilitate timely sowing of rabi crops. To utilize residual moisture, pulse crops can be grown in rabi crops and they are need to be sown immediately after rice harvesting. But, now a days the pulse productivity in rice fallows is gradually decreasing due to poor germination of seeds, uneven moisture in the field, lack of improved varieties to withstand cold, Yellow Mosaic Virus, powdery mildew and water stress at flowering stage. Under such conditions most of the farmers are inclining towards growing of finger millet crop under zero tillage conditions Hence keeping in view the importance of zero tillage in conservation of soil health and with an aim to increase the production and productivity of finger millet, this experiment was conducted to standardize the fertilizer management technology of finger millet under zero tillage. Methodology The field experiment was conducted for three rabi seasons at Agricultural Research Station, Vizianagaram, Andhra Pradesh from, 2017 to 2019. The soil was sandy clay loam in texture, low in organic carbon, available nitrogen, high in available phosphorus and medium in available potassium. The experiment was laid down in Randomized complete block design with ten treatments replicated thrice. The treatments taken were: T1: 50% RDF, T2: 75% RDF, T3: 100% RDF, T4: 125% RDF, T5: 150% RDF, T6: T1+ 1% Multi KNO3 Foliar Spray, T7: T2+ 1% Multi KNO3 Foliar Spray, T8: T3+ 1% Multi KNO3 Foliar Spray, T9: T4+ 1% Multi KNO3 Foliar Spray, T10: T5+ 1% Multi KNO3 Foliar Spray. The Recommended dose of fertilizer (RDF) 60- 40-30 kg NPK/ha of finger millet in the North coastal zone of Andhra Pradesh. The initial soil samples final soil samples after harvest of the crop were collected, for analysis of pH, EC, available N, P2O5, K2O and available micronutrients viz., Zn, Fe, Cu and Mn as per the standard procedures. Results Different levels of NPK fertilizers, influenced the growth and yield of finger millet under zero tillage in rice fallows (Table). The number of productive tillers/plant (2.7) and ear head length (6.79 cm) were found significantly higher in 150% RDF+1% KNO3 foliar spray. However, it was on par with 125% RDF+1% KNO3 and 150% RDF. These results confirm that higher rate of fertilizers had a positive consequence on growth of fingermillet. (Sandhya Rani et al., 2017). Nutrient management in finger millet (variety, VR 847) in rice fallows under zero tillage showed that grain yield of finger millet was significantly higher (2830 kg/ha) in 150 % RDF NPK fertilizers over 100% RDF NPK fertilizers (2289 kg/ha) and was on par with 125% RDF NPK fertilizers (2602 kg/ha). Spraying of 1% KNO3 at flower initiation stage helped in further increase in grain yield. The yield increases due to spraying of 1% KNO3 was found to be 0.9 % 657 | Page Resource conservation and rainfed agriculture
International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad at 50% RDF, 2.1 at 75% RDF, 2.6 at 100% RDF, 2.6 at 125% RDF and 3.3 at 150% RDF fertilizers and this may be due to more and rapid flower initiation and early vigor that resulted in more no. of productive tillers, bigger size ear heads and long finger length of finger millet. Significant yield reduction was observed at lower levels of fertilizers. but earliness in maturity was observed in these lower levels of fertilized plots. Higher Benefit: Cost ratio (2.53) (Table) was observed with 150%RDF + spraying of 1% KNO3. These results are in conformity with Nigade et al., 2013 and Sandhya Rani, et al., 2017. The physicochemical properties of the soil (pH and E.C) (Table 2), and organic carbon was non significant with the application of different nutrient management practices. Post-harvest soil analysis showed that soil available nitrogen, phosphorus and potassium were significantly influenced by different nutrient management practices. The maximum soil available nitrogen, phosphorus and potassium after harvest of the crop was recorded with 150 % RDF + 1% KNO3 spray (270 and 76 kg/ha respectively) whereas soil available micronutrients showed no significant difference between the treatments. (Rurinda et al. 2014). References Nigade, R.D., and More, S.M., 2013. Performance of finger millet varieties to different levels of fertilizer on yield and soil properties in sub-montane zone of Maharashtra. Int. J. Agric. Sci. 9(1):256-259 Rurinda, J., Mapfumo, P., Van Wijk, M. T., Mtambanengwe, F., Rufino, M. C., Chikowo, R. and Giller, K. E. 2014. Comparative assessment of maize, finger millet and sorghum for household food security in the face of increasing climatic risk. European J of Agron. 55 (4):29–41. Sandhya Rani, Y. Triveni, U. Patro, T.S.S.K. and Anuradha, N. 2017. Effect of nutrient management on yield and quality of finger millet (Eleusine coracana (L.) Gaertn. Int J.of Chem Studies. 5(6):1211-1216 658 | Page Resource conservation and rainfed agriculture
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Extended Summaries 22-24 December,
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Resilience through land and water m
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International Conference on Reimagi
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Theme- 2 Ecosystem based approaches
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