Browsing by Author "Marwan Manea"

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Performance of baby corn (Zea mays) under different fertility levels and planting methods and its residual effect on sorghum (Sorghum bicolor)
(Indian Society of Agronomy, 2015) Marwan Manea; Avijit Sen; Ashok Kumar; Pravin Kumar Upadhyay; Yashwant Singh; Vinod Kumar Srivastava; Ram Kumar Singh
A field trial was conducted at Varanasi during 2010–11 and 2011–12, to study the effect of fertility levels and planting methods on growth, yield, nutrient uptake and economics of baby corn (Zea mays L.) and its residual biomass incorporation effect on sorghum [Sorghum bicolor (L.) Moench]. The experiment was carried out in a spiltplot design with 4 replications. The main plots were allocated with fertility levels F0 (no fertilizer as control), F1 (75, 19.64, 37.35, 20 and 5), F2 (150, 39.28, 74.71, 40 and 10) and F3 (225, 46.76, 112.06, 60 and 15) kg/ha of N, P, K, S and Zn and sub-plots with combinations of 2 planting methods (flat bed and raised bed) and 2 varieties viz; (‘Pro-Agro 4212’ and ‘Sweet Corn Sugar 75’). Application of 225, 46.76, 112.06, 60 and 15 kg/ha of N, P, K, S and Zn fertility level significantly increased plant growth, yield, yield attributes and nutrient removal over rest of the treatments. Overall, this particular fertility level registered 55.0% more yield (without husk) than control. Among the sub-plot treatments raised bed planting recorded the highest plant height, leaf-area Index, dry-matter production, nutrient removal and registered 12.5% more baby corn yield (without husk) than flat bed, while ‘Pro-Agro 4212’ also recorded the same and registered 18.8% more baby corn yield (without husk) than Sweet Corn ‘Sugar 75’. Further, 225, 46.76, 112.06, 60 and 15 kg/ha fertility levels applied to previous crop increased the sorghum grain yield by (33.3%) over the control. © 2015 Indian Society of Agronomy. All rights reserved.
Soil and Plant Responses to the Application of Ascophyllum nodosum Extract to No-Till Wheat (Triticum aestivum L.)
(Taylor and Francis Inc., 2015) Avijit Sen; V.K. Srivastava; Ram K. Singh; A.P. Singh; P. Raha; A.K. Ghosh; N. De; A. Rakshit; R.N. Meena; Ashok Kumar; Om Prakash; M.K. Ghosh; Marwan Manea; P.K. Upadhyay
A field trial consisting of four granule formulation doses and five liquid formulation sprays of a seaweed extract from Ascophyllum nodosum commercially known as Biovita, along with the recommended dose of nitrogen (N)–phosphorus (P)–potassium (K), was conducted during 2008 and 2009 in BHU, Varanasi, India, to evaluate its effect on wheat (var. HUW 468) under a no-tillage system. Among the granule doses, the 10 kg ha−1 basal application and the two liquid sprays of 500 cm3 ha−1 each at 25 and 50 days after sowing significantly improved the performance of wheat. On an average under these two treatments, the greatest grain and straw yields were observed were 3454.5, 3446.5 and 5187.5, 5220.0 kg ha−1, respectively. The greatest protein content was found when further high doses of extract were applied. A faster decomposition of the paddy residue was also observed as indicated by an earlier decline in carbon (C)/N ratio of the soil in the treated plots. © , Copyright © Taylor & Francis Group, LLC.