WEED DYNAMICS, MORPHO-PHYSIOLOGICAL INDICES AND YIELD OF SUGARCANE (Saccharum officinarum L.) AS INFLUENCED BY FERTILIZER LEVELS AND WEED MANAGEMENT

M.J. ZINZALA¹*, D.D. PATEL², T.U. PATEL³, H.M. PATEL⁴, M.J. BALDANIYA^5
1Department of Agronomy, N.M. College of Agriculture, Navsari Agricultural University, Navsari, Gujarat, 396 450, India
²Department of Agronomy, College of Agriculture, Navsari Agricultural University, Bharuch, Gujarat, 392 012, India
³Department of Agronomy, College of Agriculture, Navsari Agricultural University, Bharuch, Gujarat, 392 012, India
⁴Department of Soil science and Agril. Chemistry, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, 396 450, Gujarat, India
⁵ICAR-Krishi Vigyan Kendra, Gir Somnath, 362 715, India, India
* Corresponding Author : zinzalamanish99@gmail.com

Received : 15-07-2019     Accepted : 27-07-2019     Published : 30-07-2019
Volume : 11     Issue : 7       Pages : 1680 - 1685
Int J Microbiol Res 11.7 (2019):1680-1685

Keywords : Weed, Growth analysis, Quality, Nutrient content & uptake, Cane yield
Academic Editor : Ankit Kantibhai Chaudhari, Dr Latifah Omar, Sanhita Ghosh, Anindita Roy, Sparjanbabu D.S.
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Agronomy, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396 450, Gujarat, India
Author Contribution : All authors equally contributed

Effect of different fertilizer levels and weed management in sugarcane was laid out during the year 2016–17 and 2017–18 at Navsari Agricultural University, Navsari. Results revealed that the highest cane yield was obtained with treatment F3 (125 % RDF) and it was remained at par with treatment F2 (100 % RDF).While sugarcane equivalent yield, LAI, AGR, RGR and NAR was observed highest under the treatment F3 (125 % RDF) followed by treatment (F2). The dose of 125% RDF was found economically sounder, as it generated the highest benefit: cost ratio of 2.42. While, the lowest gross B: C ratio of 1.79 was obtained under F1 (75 % RDF) treatment. All the yield attributes and yield were found higher under the treatment W2. Consequently, treatment W2 proved efficient in controlling the weed population, lowest nutrient uptake and dry-matter production at all the growth stages, as evident by the highest weed control efficiency. Treatment W2 (Three HW at 30, 60 & 90 DAP + Two IC at 45 & 90 DAP) was recorded significantly the highest cane yield of 113.7 t/ha and it was remained at par with treatment W6. While, the lowest cane yield of 78.4 t/ha were noted under weedy check (W1). The highest B:C ratio (2.68) were obtained with the treatment W5 (Pendimethalin 1.0 kg/ha as pre-emergence + gram as an intercrop) followed by treatment W2 and W6. While, the lowest B:C ratio (1.75) was obtained under W1 (Weedy check) treatment.

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