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Show or in midsummer after the grain is removed), 1 year. The secret is to! have four years of other crops and i then one year of beets. j Since dirt from beet dumps is the the most common source of new in-1 Testation, it should not be returned to ! farming lands or dumped on roads whence wheels and brake blocks may carry it to the fields. Copies of this publication (Bulletin (Bulle-tin 196) may be obtained without .charge by addressing: Publication I Division, Experiment Station, Logan, j Utah. man, Graduate Student in the Department De-partment of Agronomy. Much of the data of the survey have been secured secur-ed from the Amalgamated Sugar j Company. A complete survey of the nematode in the sugar-beet growing districts has been given. Except for crop rotations, all common com-mon agronomic practices that nor- jmally increase yields were found of r.o avail. One year of other crops between two beet crops on btavily infested in-fested land was of no measurable benefit. Two years of other crops gave some increase in yield, three I years considerable, and four years almost entirely restored the yields. Beets can be grown with saf ety only one year at a time after four years of other crops on heavily infested land. About 20 per cent of heavily infested land can be grown successfully success-fully in beets. The following rotation is recommended: recom-mended: Alfalfa, 3 to 5 years; silage corn ov potatoes, 1 year; sugar-bests (with mar.uv), 1 year; small grain, 1 year; potatoes (with manure) on coin, 1 year; and grain (with alfalfa seeded in the spring with the grain BULLETIN ON NEMATODE CONTROL JUST ISSUED The Utah Agricultural Kxp:-ri".-p-it Station has just i.-sucd a l.u'lrtin entitled "Field Studios of Sugar h?;-t Nematode." This bul'etin has been I written by George Stewart, Agronomist Agron-omist of the Station, and A. II. Batc- |