Certain Effects Under Irrigation of Copper Compounds Upon Crops Robert Humphrey Forbes Published: 1916 Total Pages: 418 Get eBook
University of California Publications in Agricultural Sciences University of California, Berkeley Published: 1917 Total Pages: 680 Get eBook
Experiments on the Effects of Constituents of Solid Smelter Wastes on Barley Growth in Pot Cultures Charles Bernard Lipman Published: 1917 Total Pages: 110 Get eBook
Irrigation United States. Bureau of Agricultural Engineering Published: 1938 Total Pages: 636 Get eBook
