论文信息 - Forms of nitrogen in waterlogged soils and their contribution to yield and nitrogen uptake by rice

Forms of nitrogen in waterlogged soils and their contribution to yield and nitrogen uptake by rice

The major portion of nitrogen nutrition of flooded rice is met through the mineralization of organic forms of N present in soil. This is true even when fertilizer nitrogen is added. The mineralization of organic matter under waterlogged conditions is governed mainly by the prevailing chemical and biological conditions. In recent years, attempts have been made to characterize the products of hydrolysis of soil organic nitrogen (Asami & Hara, 1970; Shinde, 1978; Subba Rao & Ghosh, 1981). Information on different fractions of nitrogen in waterlogged rice soils is scanty.

A. Sarkar | N. Sinha | S. Prasad

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[2] S. Pradhan,et al. A Soil Sampler for Collecting Wet Soil Samples from Different Depths of Flooded Soils , 1979 .

[3] D. K. Ballal,et al. Studies on Nitrogen Forms as Affected by Long-Term Manuring and Fertilization in Vertisols , 1978 .

[4] K. Sahrawat,et al. Note on the nitrification-inhibitors in the seeds, bark and leaves of Pongamia glabra Vent. , 1976 .