A B C D E F G H I J-K L M N O P Q-R S T U V W-Y
close this section of the libraryNitrates.(2)
View the documentNitrates in the upper Santa Ana River Basin in relation to groundwater pollution / R.S. Ayers, R.L. Branson, editors. Berkeley, Calif. : Agricultural Experiment Station, 1973.
View the documentFactors affecting the accumulation of nitrate in soil, water, and plants / by Frank G. Viets, Jr. and Richard H. Hageman. Viets, Frank G. (Frank Garfield), 1916- 4n Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1971.