F1KLI> CROPS. 981 



The autlior rci-nniniciKls plantiiii; llic Kf^yptian varieties and (ioori^ia long 

 staple so (in. Iiy r.o cin.. and the Mississippi at soniewiiat smaller distances. 

 These directions aic appliralile only t<> nonirrigatod lands. It is pointed out 

 tliat where irrigation is practicable the yields are largely increased. 



Leguminous crops for green manuring, ('. V. ririoK {( . S. Dcjil. A</r., 

 Fanners' JiiiL :i7S, pp. 27, I'kjx. I'l). — This bulletin discusses the use of green 

 manures, the principal leguminous crops used for this purpose, how these crops 

 get nitrogen from tlie ail', and in general tiieir adaptation to soil improvement. 

 l)escrii)tions are given of !• different croi)s largely grown as green manures. 



The Colorado potato industry, E. R. Bennett {Colorado Sta. Bid. 111. pp. 

 23. pus. J-'i). — This bulletin dc^scribes the potato industry of Colorado, which is 

 largely contined to the Greeley, Carlmndale, San Luis Valley, and Divide dis- 

 tricts. In the (Jreeley and Carbondale districts the most popular variety is the 

 Improv(>d reachblow, also known as the Red or White McC'lure. Other varie- 

 ties largely grown there are the I'earl, White Beauty, Carman No. 1, and Chal- 

 lenge. Monroe County Prize, Rural New Yorker No. 2, Pearl, and Champion 

 ai-e commonly grown in the San Luis Valley district. The Divide district is 

 the oidy place in the State of any extent where potatoes are grown without 

 irrigation. A specialty is made here of seed potato growing, and as much of 

 this seed is used in the Greeley district the same varieties are planted. 



The methods of potato culture are described for each district and notes are 

 given on diseases, insect pests, harvesting, marketing, seed selection, and the 

 cost of growing. 



Observations made on the amount of water used by the crop when grown on 

 jilfalfa land and old potato land are reported. On the old alfalfa land 13.76 in. 

 of water was supplied by irrigation and 8.75 in. by rainfall, giving a total of 

 22..")! in. as the total water used on the crop. On the old potato land 4.41 in. 

 less water was supplied by irrigation, which is attributed to the difference in 

 the physical condition of the soil in the 2 fields. The crop on the potato land 

 rii)ened earlier and gave a smaller yield than that grown on the alfalfa ground. 



Report on trials of varieties of potatoes, 1906, D. A. Gilchrist {County 

 yorthiiiuJ).. lUJ. Com.. Bui. (K pp. 88-90). — At Cockle Park, Satisfaction ranked 

 first in avt'rag(> yield among varieties grown for .S years, and Dalhousie Seed- 

 ling gave the best'results in a list of varieties tested for only 2 years. Among 

 the varieties tested at Dunbar, Factor, Dalmeny Acme, and Dalmeny Argon 

 gave the best yields. In an experiment with tubers from different districts and 

 countries the seed from Ireland and from Scotland produced the best crops. 



With regard to winter and spring planting, it is shown that the heaviest 

 crops were secured by planting early in March at Newcastle and early in April 

 at Cockle Park. When the potatoes were not planted until May the results 

 were much l(>ss satisfactory than from winter planting. 



Potatoes for seed purposes {Dcpt. Afjr. (Did Trch. Iiistr. Ireland Jour.. 7 

 (1907), No. 2, pp. 2'il, 2Ji2). — Notes are given on the size of seed potatoes and 

 the cutting and sprouting of the same, together with a summary of results of 

 exiteriments on the sprouting of late potatoes from 1008 to lOOd, inclusive. 

 These experiments were cooperative and the yearly average gain in yield, due 

 to s]irouting before i)lanting, ranged from 1 ton 13 cwt. to 2 tons 1.3 cwt. per acre. 



Experiments with varieties of sugar cane, ,L P. n'ALBUQUERQiiE and .T. R. 

 P.ovKM. Ufpt. Afir. Worl: Htirhiido.^. Imp. Dcpt. Af/r. Wc.s-f Indies, 1903-1905, pt. 

 S, pp. 67). — The results of work with seedling and other varieties of canes, car- 

 ried on at 2 central stations and 13 other estates situated in typical localities, 

 are rejiorted for the season 1003-lOOr). 



On the 1.^) estates. 12 in the black soil and 3 in the red soil regions. R 1.''>20 

 r.-niked lii-st with 7. lnj llis. of sucrose per acre, with B 208 coming next with 



