40 EXPERIMENT STATION RECORD. 



Cotton culture, R. J. Redding {Georgia Sta. Bui. 52, p. 32). — A continuation of 

 previously reported work (E. S. R., 12, p. 137). Frequent and heavy rains interfered 

 to some extent with the results. In 1900 21 varieties of cotton were tested. Prize, 

 Schley, Moss, Improved, Russell Big Boll, and Lee Improved, mentioned in the order 

 of the value of total products, outranked the rest of the varieties in profitable returns. 

 As in the preceding year the largest percentage of lint — 39 per cent— was produced by 

 Moss Improved. Corput Find and Griffin Improved were the earliest varieties and 

 the least profitable. As a rule the late varieties gave better results than the early 

 ones. Each variety is briefly described, and directions for selecting a variety and 

 selecting seeds in the field are given. 



The results obtained in a composite seed test were equally significant with those 

 obtained in 1898 and 1899, and confirm the conclusion previously drawn that if the 

 seed3 of 2 equally productive varieties, one an early and the other a late cotton, be 

 mixed, the yield will be greater than that of either variety planted alone. 



The results of distance experiments show that cotton planted 4 ft. by Ij ft., one 

 plant in a place, gave a l^etter yield than when planted 4 ft. by 3 ft., two plants in a 

 place, and that for the years 1899 and 1900, on the soils covered by the experiments, 

 planting 12 in. apart in rows 4 ft. apart gave better results than 16, 20, or 24 in. 

 between plants in the row. 



Dividing the fertilizer application gave results confirming the conclusion drawn 

 from previous experiments, namely, that commercial fertilizers should be applied 

 not less than 1 week before planting, but that nitrate of soda may sometimes be 

 profitably applied a month or more after planting. Applying commercial fertilizer 

 in the bedding furrow was found preferable to broadcasting the application. A gen- 

 eral fertilizer test did not give definite results, l)ut the author thinks they tend to 

 the conclusion that a formula consisting of 3.33 parts of i)hosphoric acid, 1 part of 

 potash, and 0.93 part of nitrogen, all in available form, is best suited to middle 

 Georgia ui)land.s in high condition. 



Culture tests ■with, several varieties of lupines, vetches and peas for green 

 manuring, O. Pirscn {Orgaan. Ver. Oudleer. Eijks. Landbuuimchool, 13 {18901), No. 

 151, PI). 20-33). — The results for 1897 and 1898 are reported in tabular form and dis- 

 cussed. In 1897 blue lupines produced the largest amount of dry matter of nitrogen. 

 In 1898 the amount of dry matter and nitrogen produced by blue lupines was greater 

 than the amount yielded by yellow and white lupines, but smaller than in the case 

 of vetch and peas. The roots of lupines were richer in nitrogen than the roots of 

 vetches and peas. 



The culture of colza and lupines, Scuribaux (7>(tZ. Soc. Nat. Agr. France, 61 

 {1901), No. 1, jjp. 41-44)- — An article presenting a paper by Wagner, professor at the 

 Agricultural School at Ettelbri'ick, Luxenilwurg, on the utility of the culture of 

 colza ami lupines on the value of green manure and the advantage ot i>lowing shallo"w 

 when turning under organic manures. 



Experiments with varieties of oats to determine the value of seed exchange, 

 F. F. Bruijning, Jr. ( Verzamel. Verdag. Rijk (kiinlmdieerde rroefvelden., etc., 1899-19U0. 

 Department Bmnenlund.sche Zaken, Netherlands, pp. 549-586; also published as a 

 Separate, Wagen'mgen, 1900, pp. 37). — The question of the use of seeds raised under 

 different conditions from those under which the crop is to be grown has usually been 

 approached from the quantitative standpoint. In the present work variation's in 

 quality were studied. A portion of the seed first imported was reserved as a type 

 and the quality of each year's product compared with the standard thus established. 



The experiments were carried on in 1899 with five standard varieties of oats in use 

 in the Netherlands. The seeds of these varieties were distributed to 16 farmers wOio 

 planted them in the regular course of their farm rotation, without special prepara- 

 tion. Details as to the nature of the soil, fertilizers, weather, cultural conditions, 

 growth, etc., are tabulated as are also data as to the purity, weight of the grain, per- 

 centage of straw to grain, etc. 



