Mineralisable nitrogen in relation to soil nitrogen forms and soil properties

Mohapatra, S.P.; Khan, S.K.

Oryza 20(4): 227-232


Accession: 001410293

Download citation:  

Article/Abstract emailed within 1 workday
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

The contribution of organic nitrogen forms to mineralized nitrogen and the relation of the latter to soil properties in 21 lowland rice soils of India with a wide pH range were studied. Amino acids formed the major constituents of soil organic nitrogen. The mineralisable nitrogen released from soil organic nitrogen formed 0.45% to 4.6% of the total N contents. Amino acid-N and hydrolysable ammonium-N fractions were correlated with the mineralisable nitrogen under waterlogged conditions. Mineralisable nitrogen was also positively correlated with organic carbon and C/N ratio and negatively correlated with soil pH.