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Mineral nitrogen status of soil, leaf nitrogen content and grain yield of rice variety 'Jaya' as affected by water and nitrogen fertilizer management

Pillai, K.G.; De, R.

Field Crops Research 2(2): 125-133

1979


ISSN/ISBN: 0378-4290
DOI: 10.1016/0378-4290(79)90015-7
Accession: 000699873

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Field experiments were carried out over 2 consecutive wet seasons to study the dynamics of mineral N content (NH4-N + NO3-N) of the soil and the leaf N content of rice Jaya as affected by different rates and dates of N application under continuous shallow submergence and alternate submergence systems. The apparent recovery of added N by the crop and grain yield responses were studied. The NH4-N content and mineral N content of the soil was consistently higher under continuous shallow submergence. N uptake and recovery of added N by the crop, leaf N content at panicle initiation and flowering stage, and N yield were higher under continuous submergence than under alternate submergence.

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