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Indian Journal of Agronomy
Year : 2001, Volume : 46, Issue : 1
First page : ( 112) Last page : ( 117)
Print ISSN : 0537-197X. Online ISSN : 0974-4460.

Effect of integrated nutrient management on growth and yield of wheat (Triticum aestivum)

Nehra Ajit S., Hooda I.S., Singh K.P.

Department of Agronomy, Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125004

Received:  June,  2000.

Abstract

A field experiment was conducted during winter season of 1997–98 and 1998–99 on sandy-loam soil of Hisar, Haryana. The experiment consisting of 6 organic manures in main plots and 5 fertilizer levels in subplots was laid out in split-plot design with 3 replications. Application of organic manures irrespective of source and rate increased the dry-matter accumulation, leaf-area index, effective tiller number, grains/ear, grain and straw yields, photosynthetic pigments (chlorophyll ‘a’, ‘b’ and carotenoids) and photosynthesis of wheat (Triticum aestivum L. emend. Frori & Paol.) significantly over no organic manure during both years. Maximum values of all the attributes were observed with vermicompost at 15 tonnes/ha which was significantly superior to the rest of the organic manure treatments. Increasing dose of nitrogen improved all the above-mentioned parameters of wheat. Maximum values were recorded with the recommended dose of 120 kg N + 60 kg P2O5 + 60 kg K2O/ha. However, nitrogen at 120 and 90 kg/ha + Azotobacter were statistically at par with recommended dose of NPK. Inoculation of wheat seeds with Azotobacter chroococcum strain HT-56 also improved growth, yield, photosynthetic pigments and photosynthesis of wheat during both the years.

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Keywords

Integrated nutrient management, Wheat, Vermicompost, Inoculation, Azotobacter, Photosynthesis.

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