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Effect of nitrogen levels on yield, root biomass distribution, nitrogen recovery by forage grasses and changes in soil properties of acid Inceptisol

Indian Agricultural Research Journals

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Title Effect of nitrogen levels on yield, root biomass distribution, nitrogen recovery by forage grasses and changes in soil properties of acid Inceptisol
 
Creator SINGH, K A
 
Subject nitrogen, root biomass, forage grasses, soil properties, Inceptisol
 
Description An experiment was conducted for 5 years to study the effect of fertilizer N on the productivity of 3 forage grassesand changes in the soil properties of an acid InceptiSol at an altitude of 1 250 m in Sikkim. Dallis grass (Paspalumdilatatum Poiret) and 'BN 82048' hybrid pearlmillet [Pennisetum glaucum (L.) R. Br.emend Stuntz] x napier grass (P.purpureum Schum) gave highest dry-matter at 150 kgN/ha and para grass [Brachiaria mutica (Forsska) Stapf] at 50 kgN/ha over 5 years but the response to Ndecreased with the age of the grasses. With increase in N level dry-matter producedproduced /kg of N increased but the crude protein cOntein and N recovery decreased except former 2 parameters in paragrass. Maximum root biomass was at 50 kg N/ha. With application of N, root distribution in 0-20 cm soil depth increasedwith corresponding decrease in 20--6O cm soil depth. Soil pH, organic carbon, available phosphorus and potassiumincreased and exchangeable aluminium, calcium and magnesium cations decreased over 5 years. N application tended todecrease soil pH, organic carbon, available phosphorus and exchangeable calcium and magnesium cations and increasedexchangeable aluminium
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-02-01
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/26942
 
Source The Indian Journal of Agricultural Sciences; Vol 69, No 8 (1999)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/26942/12246
 
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