National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The experiment consisting of five subsoiling treatments (S0 to S4) viz., no subsoiling (S0), subsoiling at 1.5 m distance (S1), subsoiling at 2.0 m distance (S2), cross subsoiling at 1.5 m x 1.5 m (S3) and cross subsoiling at 2.0 m x 2.0 m (S4) and two preparatory tillage practices, i.e., 2 and 4 harrowing was laid in split plot design with four replications. Various subsoiling practices did not show any significant effect on nitrogen, phosphorus and potassium content (%) in sugarcane leaf blade, leaf sheath and stalk at harvest during both the years of experimentation and pooled result. Variations in nitrogen, phosphorus and potassium uptake in canes were significant due to various subsoiling practices in both the years and combined analysis. The crop grown with cross subsoiling at 1.5 m distance removed significantly more nitrogen (244.0, 246.2 and 245.1 kg ha-1, respectively), phosphorus (116.8, 116.1 and 116.4 kg ha-1, respectively) and potassium (388.1, 390.3 and 389.2 kg ha-1, respectively) than remaining treatments but at par with cross subsoiling at 2.0 m distance and subsoiling at 1.5 m distance in both the years (2016 and 2017) and in combined analysis, respectively. The differences in nitrogen, phosphorus and potassium content (%) and uptake by canes due to different preparatory tillage operations were non-significant. However, the maximum nitrogen, phosphorus and potassium removal by canes was with four harrowing, whereas the minimum with two harrowing in first year, second year and pooled analysis.
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