Book of Extended summaries ISDA
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Book of Extended summaries ISDA

Book of Extended summaries ISDA Book of Extended summaries ISDA

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International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad management practices like weeding and pest and disease control measures were followed, andthe data on crop yield was analyzed considering farmers as replications using one way ANOVA with randomized blocks on Bluestat. Results The soils are slightly acidic to strongly alkaline (pH 6.04 to 8.68) in reaction, whereas the electrical conductivity (EC) of selected villages of Southern Telangana Zone remains within safe limit with no salinity hazard (200 kg available nitrogen ha -1 . The available phosphorus (P 2O 5) ranged from 28.11 to 89.03kg ha -1 with a mean value of 55.56 kg ha -1 , which indicating medium to high availability of phosphorus at farmers field. Important rabi crops (rice, maize, ragi, groundnut, sesamum, green-gram, black-gram, jonna, bajra and castor) of Nagarkurnooldistrict showed significant response to SSNM compared to blanket application of recommended fertilizers, soil test crop response (STCR) equation and farmers practice in all the locations. The seed yield (q acre -1 ) increased in all crops tested though by different levels. Target yield based site specific nutrient management approach registered highest yields (q acre -1 ) viz.,21.83in rice, 31.66inragi, 35.09inmaize, 12.06in groundnut, 2.31in seamum, 3.57ingreengram, 5.35inblackgram, 6.39in bajra, 17.24in sorghum and 20.83in castor.Further, the results revealed that the percent yield increased as 35.67 in rice, 28.80 in ragi, 34.24 in maize, 33.70 in groundnut, 27.62 in sesamum, 23.14 in green gram, 21.32 in black gram, 23.60 in bajra, 26.76 in jonna, 29.54 in castor cropsover farmers practice due to more precise application of fertilizers in the study area. Initial soil values and yields of different crops Treatment pH EC (dSm -1 ) OC (%) Ava. N (kg ha -1 ) Ava. P2O5 (kg ha -1 ) Ava. K2O (kg ha -1 ) Yield (q acre -1 ) Rice in Naganool FP 8.40 0.31 0.48 125.09 42.17 594.05 16.09 RDF 8.16 0.36 0.42 150.18 51.54 654.53 18.31 STCR 8.28 0.41 0.36 150.53 65.60 676.03 20.06 SSNM-4 8.31 0.30 0.48 112.90 46.86 611.52 21.83 Ragi in Kummera FP 6.04 0.11 0.42 117.81 51.54 600.77 24.58 RDF 6.61 0.10 0.35 112.54 60.91 571.20 29.02 STCR 6.84 0.15 0.39 87.81 56.23 555.07 30.11 SSNM-4 8.20 0.23 0.42 112.90 46.86 576.58 31.66 % Increase 35.67 28.80 Maize in Palem FP 8.62 0.26 0.42 188.16 60.91 691.58 26.14 454 | Page Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming, INM, soil-microorganisms-plant interactions

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad RDF 8.58 0.24 0.30 100.35 51.54 626.30 30.43 STCR 8.68 0.30 0.45 188.16 51.54 659.90 33.32 SSNM-4 8.49 0.24 0.36 100.35 42.17 657.22 35.09 Groundnut in Kummera FP 8.54 0.25 0.36 100.35 60.91 573.89 9.02 RDF 8.59 0.19 0.39 171.79 51.54 696.19 10.14 STCR 8.41 0.24 0.48 125.44 60.91 614.21 11.13 SSNM-4 8.54 0.26 0.42 175.62 51.54 571.20 12.06 Sesamum in Kummera FP 8.30 0.39 0.39 193.79 65.60 637.82 1.81 RDF 8.28 0.42 0.36 150.53 46.86 654.53 2.04 STCR 8.22 0.21 0.42 107.81 56.23 620.93 2.10 SSNM-4 8.38 0.38 0.42 137.98 74.97 649.15 2.31 Green gram in Tummalasuru FP 8.02 0.13 0.27 102.72 56.23 628.99 2.90 RDF 8.28 0.12 0.36 150.53 37.49 631.68 3.12 STCR 8.05 0.14 0.42 137.98 74.97 511.78 3.29 SSNM-2 7.72 0.13 0.39 137.98 28.11 676.54 3.57 Black gramTummenapet Stage FP 7.96 0.28 0.30 112.90 89.03 513.66 4.41 RDF 8.22 0.24 0.27 125.44 42.17 629.94 4.83 STCR 7.93 0.20 0.39 105.26 28.11 619.58 5.02 SSNM-4 8.17 0.20 0.27 190.70 28.11 478.18 5.35 Bajra in Lingasanipalle FP 7.62 0.13 0.36 112.90 37.49 658.56 5.17 RDF 8.23 0.15 0.42 125.09 70.29 529.79 5.82 STCR 8.20 0.12 0.36 112.90 74.97 598.08 6.01 SSNM-4 7.78 0.07 0.30 100.35 74.97 638.62 6.39 Sorghum in Itholu FP 8.22 0.24 0.30 125.44 79.66 531.94 13.60 RDF 7.37 0.09 0.43 125.09 89.03 693.50 15.12 STCR 7.59 0.07 0.36 150.18 37.49 569.86 16.78 SSNM-4 7.66 0.21 0.36 112.72 70.29 662.59 17.24 Castor in Itholu FP 7.93 0.21 0.31 121.96 53.80 517.06 16.08 RDF 8.13 0.15 0.40 135.14 39.85 487.49 18.61 STCR 7.62 0.12 0.37 112.64 63.71 471.36 19.57 SSNM-4 8.27 0.23 0.39 183.04 37.46 492.87 20.83 References 33.70 27.62 23.14 21.32 23.60 26.76 29.54 Chivenge, P., Zingore, S., Ezui, K. S., Njoroge, S., Bunquin, M. A., Dobermann, A. and Saito, K. 2022. Progress in research on site-specific nutrient management for smallholder farmers in sub-Saharan Africa. Field Crops Res., 281. https://doi.org/10.1016/j.fcr.2022.108503. Singh, S. P., Dutta, S., Jha, S., Prasad, S.S., Chaudhary, S.K., Manna, M.C., Majumdar, K., Srivastava, P., Brahmanand, P. S., Singh, K. M. et al.,2022. Indigenous Nutrient Supplying Capacity of Young Alluvial Calcareous Soils Favours the Sustainable Productivity of Hybrid Rice and Maize Crops. Sustainability, 14, 11585. https://doi.org/ 10.3390/su141811585. Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming, INM, soil-microorganisms-plant interactions 455 | Page

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &<br />

Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad<br />

management practices like weeding and pest and disease control measures were followed,<br />

andthe data on crop yield was analyzed considering farmers as replications using one way<br />

ANOVA with randomized blocks on Bluestat.<br />

Results<br />

The soils are slightly acidic to strongly alkaline (pH 6.04 to 8.68) in reaction, whereas the<br />

electrical conductivity (EC) <strong>of</strong> selected villages <strong>of</strong> Southern Telangana Zone remains within<br />

safe limit with no salinity hazard (200 kg available nitrogen ha -1 . The available phosphorus (P 2O 5) ranged from 28.11 to<br />

89.03kg ha -1 with a mean value <strong>of</strong> 55.56 kg ha -1 , which indicating medium to high<br />

availability <strong>of</strong> phosphorus at farmers field. Important rabi crops (rice, maize, ragi, groundnut,<br />

sesamum, green-gram, black-gram, jonna, bajra and castor) <strong>of</strong> Nagarkurnooldistrict showed<br />

significant response to SSNM compared to blanket application <strong>of</strong> recommended fertilizers,<br />

soil test crop response (STCR) equation and farmers practice in all the locations. The seed<br />

yield (q acre -1 ) increased in all crops tested though by different levels. Target yield based site<br />

specific nutrient management approach registered highest yields (q acre -1 ) viz.,21.83in rice,<br />

31.66inragi, 35.09inmaize, 12.06in groundnut, 2.31in seamum, 3.57ingreengram,<br />

5.35inblackgram, 6.39in bajra, 17.24in sorghum and 20.83in castor.Further, the results<br />

revealed that the percent yield increased as 35.67 in rice, 28.80 in ragi, 34.24 in maize, 33.70<br />

in groundnut, 27.62 in sesamum, 23.14 in green gram, 21.32 in black gram, 23.60 in bajra,<br />

26.76 in jonna, 29.54 in castor cropsover farmers practice due to more precise application <strong>of</strong><br />

fertilizers in the study area.<br />

Initial soil values and yields <strong>of</strong> different crops<br />

Treatment<br />

pH<br />

EC<br />

(dSm -1 )<br />

OC (%) Ava. N (kg ha -1 ) Ava. P2O5 (kg ha -1 ) Ava. K2O (kg ha -1 )<br />

Yield<br />

(q acre -1 )<br />

Rice in Naganool<br />

FP 8.40 0.31 0.48 125.09 42.17 594.05 16.09<br />

RDF 8.16 0.36 0.42 150.18 51.54 654.53 18.31<br />

STCR 8.28 0.41 0.36 150.53 65.60 676.03 20.06<br />

SSNM-4 8.31 0.30 0.48 112.90 46.86 611.52 21.83<br />

Ragi in Kummera<br />

FP 6.04 0.11 0.42 117.81 51.54 600.77 24.58<br />

RDF 6.61 0.10 0.35 112.54 60.91 571.20 29.02<br />

STCR 6.84 0.15 0.39 87.81 56.23 555.07 30.11<br />

SSNM-4 8.20 0.23 0.42 112.90 46.86 576.58 31.66<br />

%<br />

Increase<br />

35.67<br />

28.80<br />

Maize in Palem<br />

FP 8.62 0.26 0.42 188.16 60.91 691.58 26.14<br />

454 | Page Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming, INM,<br />

soil-microorganisms-plant interactions

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