Nutrient absorption and yield of wheat (Triticum aestivum) as influenced by N, P and K fertilization

Polara, J.V.; Gundalia, J.D.

Advances in Plant Sciences 18(1): 213-219


ISSN/ISBN: 0970-3586
Accession: 004251806

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Fields experiments were conducted with wheat cv. GW-496 during the winter seasons of 1995-96 and 1996-97 on medium black calcareous soils in Junagadh, Gujarat, India, involving application of 7 levels of N (0, 30, 60, 90, 120, 150 and 180 kg N/ha, along with 60 kg each of P and K), 5 levels of P (0, 20, 40, 60 and 80 kg/ha, along with 120 kg N and 60 kg K/ha) and 5 levels of K (0, 20, 40, 60 and 80 kg/ha, along with 120 kg N and 60 kg P/ha). The highest grain (4613 kg/ha) and straw (5020 kg/ha) yields were obtained when N was applied at 120 kg, along with 60 kg P and 60 kg K/ha. Application of N significantly increased the N concentrations in grain and straw, P concentration in grain and K in straw, while application of P and K failed to increased the N, P and K concentrations in grain and straw. Application of N and P significantly increased the N, P and K uptake by grain and straw, whereas K uptake by straw and total K uptake significantly increased with application of 60 kg K/ha.