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A field experiment on study of nitrogen management through different sources on growth and yield of wheat (Triticum aestivum L.) was conducted during rabi season of 2016-17 at Agronomy Farm, B. A. College of agriculture, Anand Agricultural University, Anand on loamy sand soil. Nitrogen management on wheat var. GW 496 with ten treatments comprising of 100 % RDN, 75 % RDN along with 25 % N through FYM or vermicompost or 2% urea sprays at 30 and/or 40 and/or 50 DAS and 50 % RDN along with 50 % N through FYM or vermicompost or 2% urea sprays at 30 and/or 40 and/or 50 DAS into randomized block Design with four replications. Application of 75 % RDN + 2 % urea spray at 30, 40 and 50 DAS was found superior for growth and yield attributes viz; plant height at 60 DAS, number of spikelet spike-1, length of spike, number of grains spike-1, dry matter accumulation, test weight (48.78 g) and grain yield (6662 kg ha-1). However, treatment with 75% RDN + 25% N through VC recorded significantly higher plant height at harvest, number of total tillers, effective tillers and straw yield of wheat The highest net realization (Rs. 84643 ha-1) and BCR (3.95) were secured under treatment 75% RDN + 2% Urea spray at 30, 40 and 50 DAS. [ABSTRACT FROM AUTHOR]

A field experiment was conducted at College Agronomy Farm, B. A. College of Agriculture, Anand Agricultural University, Anand (Gujarat) to study real time nitrogen management through organic and inorganic sources during rabi season of the years 2013-14 and 2014-15 on loamy sand soil, low in organic carbon and available nitrogen, medium in available phosphorus and high in available potassium. Significantly higher growth parameters viz; periodical plant height, periodical dry matter accumulation and periodical number of tillers per metre row length were found with application of 60 kg N/ha in two equal splits at 52 and 66 DAS when LCC=4. Results further revealed that yield attribute viz; number of effective tillers per meter row length, length of spike, number of spikelets per spike, number of grains per spike and test weight was found significantly higher under the same treatment. Though appreciably higher grain (4111 kg/ha) and straw yield (5343 kg/ha) of wheat were observed under treatment with 60 kg N/ha application in two splits when LCC=4, it was found alike for 60 kg N/ha application in two splits at 25 and 45 DAS when LCC=5 and 40 kg N/ha application in two splits at 50 and 62 DAS when LCC=4. [ABSTRACT FROM AUTHOR]