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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 |
A field experiment conducted during the Rabi season, 2016-17 at the Instructional Farm, Shaheed Gundadhoor College of Agriculture & Research Station, Kumhrawand, Jagdalpur District- Bastar (Chhattisgarh). The soil of experimental site was sandy loam; it was low in organic carbon (0.44%) and available nitrogen (235.15 kg ha-1) and medium in available phosphorus (13.10 kg ha-1) and potassium (291.33 kg ha-1) and acidic in reaction (6.2 pH). The experiment was laid out in spilt plot design with three crop residue management practices and four varieties of wheat. Three residue management practices viz. Residue burnt + tillage (T1), Residue incorporation (T2) and Residue retention (T3), were applied in main plot and four varieties viz. GW- 273 (V1), Lok- 1 (V2), Kanchan (V3) and Sujata (V4) in sub-plot and replicated 3 times. The results revealed that treatment residue retention recorded relatively higher plant height (16.90 cm) at 15 DAS, whereas treatment residue incorporation recorded relatively higher plant height (26.42 cm) at 30 DAS, (57.51 cm) at 45 DAS and (75.09 cm) at 60 DAS, (93.28 cm) at 75 DAS, (96.74 cm) at 90 DAS and (97.28 cm) at harvest. The varieties GW-273 recorded significantly higher plant height (17.66 cm) at 15 DAS and (26.81 cm) at 30 DAS, variety LOk-1 recorded significantly higher plant height (62.77 cm and 78.24 cm) at (45 and 60 DAS) respectively. Significantly higher plant height recorded of variety Sujata (113.04 cm) at 75 DAS, (113.51 cm) at 90 DAS and (114.06 cm) at harvest. Treatment residue retention recorded relatively higher number of tillers (427.92) at 15 DAS, whereas treatment residue incorporation recorded relatively higher number of tillers (693.75) at 30 DAS, (862.50) at 45 DAS, (618.75) at 60 DAS, (549.08) at 75 DAS, (545.67) at 90 DAS and (544.92) at harvest. The varieties Sujata recorded significantly higher number of tillers (749.44), (901.11) and (652.22) at 30, 45 and 60 DAS respectively, whereas variety Lok-1 recorded significantly higher number of tillers (577.22), (577.00) and (576.44) at 75 DAS, 90 DAS and at harvest respectively. The days to occurrence of crop growth stages more influenced due to varieties and less influenced due to crop residue management practices. Treatment residue incorporation recorded relatively higher grain yield (40.63 q ha-1), straw yield (32.92 q ha-1) and gross return (Rs. ha-1 64,541), whereas treatment residue retention recorded highest net return. (Rs. ha-1 39,308) and B: C ratio (Rs. 2.81). Varieties Lok-1 recorded significantly higher grain yield (43.36 q ha-1), harvest index (61.35%), gross return (Rs. ha-1 66,130), net return (Rs. ha-1 41,452) and B: C ratio (Rs. 2.68). Variety Sujata produces significantly higher straw yield (34.83 q ha-1).