Influence of fertilizer application on the yield and nutrient uptake in sorghum

Savithri, P. and Nagalakshmi, K. and Pajaniswamy, N. and Krishnamoorthy, K.K. (1977) Influence of fertilizer application on the yield and nutrient uptake in sorghum. Madras Agricultural Journal, 64 (5). pp. 335-337.

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In a field experiment, sorghum Co. 20 was grown on a red and a black Coimbatore soil under rain-fed conditions and was given 45 or 60 kg N/ha, 22.5 or 30 (where 60 kg N applied) kg P/ha and 0 or 22.5 kg K/ha, as (a) 100% as basal dressing, (b) 50% basal + 50% at tillering or (c) 50% basal + 50% at tillering as a foliar application. Grain and straw yield was higher in the red than the black soil. Grain yields increased with increasing N application in (a) and (c) but these increases were significant only for the red soil. Increased P application increased grain and straw yield in the red soil only. K application had no effect on yield in either soil. Application of 45 kg N + 22.5 kg P + 22.5 kg K/ha as (b) gave highest grain yields of 2.27 t/ha in the black soil and easiest means of application. In the red soil only N and K uptake increased with N application especially in (c)

Item Type: Article
Author Affiliation: Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India
Subjects: Crop Improvement > Genetics/Genomics
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 28 Jan 2013 09:14
Last Modified: 28 Jan 2013 09:14

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