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Economics of Nitrogen Use in Crop Production
(North Dakota State University, 1979)
Nitrogen Status of North Dakota Soils
(North Dakota State University, 1979)
Cover, table of contents
(1979)
Nitrogen: A Limiting Factor in Sunflower Production on Non-fallow Soils
(North Dakota State University, 1979)
Nitrogen in Our Lakes and Rivers
(North Dakota State University, 1979)
The Use of Anhydrous Ammonia in North Dakota
(North Dakota State University, 1979)
The Role of Nitrogen Fertilization in the Management of Grasslands in North Dakota
(North Dakota State University, 1979)
Nitrogen in Animal Production
(North Dakota State University, 1979)
Commercial Fertilizer Use, Especially Nitrogen, in North Dakota
(North Dakota State University, 1979)
Role of Microorganisms in Nitrogen Cycling in North Dakota Soils
(North Dakota State University, 1979)