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Soil and Plant Responses to the Application of Ascophyllum nodosum Extract to No-Till Wheat (Triticum aestivum L.)

Sen, Avijit, Srivastava, V. K., Singh, Ram K., Singh, A. P., Raha, P., Ghosh, A. K., De, N., Rakshit, A., Meena, R. N., Kumar, Ashok, Prakash, Om, Ghosh, M. K., Manea, Marwan, Upadhyay, P. K.
Communications in soil science and plant analysis 2015 v.46 no.1 pp. 123-136
Ascophyllum nodosum, Triticum aestivum, carbon, field experimentation, macroalgae, nitrogen, no-tillage, paddies, plant response, protein content, soil, sowing, straw, wheat, India
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 cm ³ 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.