World nitrogen survey /

Nitrogen fertilization in the environment /
Published: (1995)

Diagnosis of the nitrogen status in crops /
Published: (1997)

Nitrogen in organic wastes applied to soils /
Published: (1989)

Soil and fertilizer nitrogen : review study with particular reference to plant nutrition and environmental protection /
Published: (1984)

Nitrogen in agricultural systems /
Published: (2008)

Fertilizer nitrogen, its chemistry and technology.
Published: (1964)

Effects of tillage and nitrogen fertilization on nitrogen losses from soils used for corn production /
Published: (1990)

Nitrogen in agricultural soils /
Published: (1982)

Nitrogen in agricultural soils /
Published: (1982)

Fertiliser project for Gujarat, capacity 96,000 tons of nitrogen per year.

Nitrogen fertilization timing effect on wheat production and nitrogen uptake efficiency /
by: Alcoz Sartori, Maria Mercedes, 1964-
Published: (1992)

Fertilizer nitrogen : facing the challenge of more expensive energy : proceedings of the British Sulphur Corporation's Fourth International Conference on Fertilizer Technology, London, 19-21 January 1981 /
Published: (1981)

Nitrogen fertilizer chemical processes /
by: Pratt, Christopher J.
Published: (1965)

Nitrogen fluxes in intensive grassland systems /
Published: (1986)

Nitrogen in higher plants /
Published: (1990)

Losses, plant uptake and utilisation of manure nitrogen during a production cycle /
by: Kirchmann, H. (Holger)
Published: (1985)

Nitrogen-15 in soil-plant studies ; proceedings.
Published: (1971)

Biological nitrogen fixation associated with rice production /
Published: (1996)

Progress in nitrogen cycling studies : proceedings of the 8th Nitrogen Workshop, held at the University of Ghent, 5-8 September 1994 /
Published: (1997)

Vegetable utilization of nitrogen from controlled release fertilizers /
by: Wiendenfeld, Robert Phillip
Published: (1979)

Liquid nitrogen fertilizers for direct application /
by: Adams, J. Richard (James Richard), 1898-
Published: (1961)

Increasing nitrogen efficiency for rice cultivation.
Published: (1980)

The role of nitrogen in grassland productivity : a review of information from temperate regions /
by: Whitehead, D. C. (David Charles)
Published: (1970)

CAN (calcium ammonium nitrate) : problems of its manufacturing, marketing, and use as nitrogen fertilizer /
by: Suleman, R. M. U.
Published: (1984)

Effect of nitrogen source and rate on irrigated grain sorghum /
by: Robertson, Wendell
Published: (1966)

Nitrogen fertilizers /
by: Korenʹkov, D. A. (Dmitriĭ Aleksandrovich)
Published: (1983)

Netherlands nitrogen technical bulletin.

Nitrogen and rice.
Published: (1979)

Nitrogen fertilizer recommendations for maize produced in the tropics : comparison of three computer-based models /
by: Osmond, Deanna Lynn
Published: (1991)

The manufacturing and marketing of nitrogen fertilizers in the United States /
by: Paul, Duane A., et al.
Published: (1977)

Availability of some nitrogenous and phosphatic materials /
by: Fraps, G. S. (George Stronach), 1876-
Published: (1922)

Nitrogen management in farming systems in humid and subhumid tropics /
Published: (1985)

A stress day concept to improve nitrogen fertilizer utilization : dryland grain sorghum in the Texas Blackland Prairie /
by: Kissel, D. E.
Published: (1975)

Nitrogen in the environment : sources, problems, and management /
Published: (2008)

Nitrogen in the environment : sources, problems, and management /
Published: (2001)

Nitrogen efficiency in agricultural soils : a Seminar on Nitrogen Efficiency in Agricultural Soils and the Efficient Use of Fertilizer Nitrogen, held in Edinburgh, 16-18 September 1987, as part of the EC Programme for the Coordination of Agricultural Research /
Published: (1988)