The Rothamsted experiments on the growth of wheat, barley, and the mixed herbage of grass land Fream, William, 1854-1906 creator text book London H. Cox 1888 1888
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ENG Agricultural chemistry Agriculture Experimentation Rothamsted Experimental Station https://www.biodiversitylibrary.org/bibliography/31759 11465754 10.5962/bhl.title.31759 CPS