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Effect of irrigation and nitrogen on growth, yield, nitrogen uptake and water-use efficiency of french bean (Phaseolus vulgaris)

Ravi Nandan; Prasad, U.K.

Indian Journal of Agricultural Sciences 68(2): 75-80

1998


ISSN/ISBN: 0019-5022
Accession: 003109252

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A field experiment was conducted on French beans (Phaseolus vulgaris) with 6 levels of irrigation and 3 levels of nitrogen during the winter season of 1991-93 in Bihar, India. Leaf-area index and dry-matter production were maximum at 3 irrigations, 0.8 IW:CPE (IW, Irrigation water; CPE, cumulative pan evaporation) ratio and 120 kg N/ha. Grain yield and net returns were highest with 0.8 IW:CPE ratio, 3 irrigations and 120 kg N/ha. Water-use efficiency was maximum with 1 irrigation. Soil-moisture depletion was higher from 0-60 cm layer with 2-3 irrigations, whereas relative depletion in the lower soil profile (60-90 cm) was more with 1 irrigation. Total N uptake increased significantly with increase in the levels of irrigation and nitrogen.

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