166 



THE AGRICULTURAL NEWS. 



May 2-2, 1915. 



COTTON. 



WEST INDIAN COTTON. 

 The report of Messrs. Henry W. Frost & Co., on 

 Sea Island cotton in the Southern States, for the week 

 ended May 1, is as follows: — 



There continues a demand for the Planters' .[..plots 

 remaining in stork, but at prices 1<\ to 2c. below the views ..i 

 the Factors, who are inclined to be firm in consequence ol the 

 recent advance in Savannah for Georgias and Florida*; 

 consequently we have no sales to report. 



A lot of 118 bales repacked cotton, reclaimed from 

 a recent fire, was sold at about 2-'«-. 



The supply of Pine to Fully Fine odd bags is very small 

 and firmly held at 24c. to -Joe 



We quote, viz: — 



Extra Fine 24c. to 'Joe. = 15d. to l->hd., c.i.f. 4 5 per cent. 

 Fine to Fully Fine 23c. to 24c. = Up. to L5rf. „ „ „ 

 Fine, oflF in colour :!0c. = 13d. c.i.f. 



This report shows that the total exports of Sea 

 Island cotton from the United States to Liverpool, 

 and Manchester, up to May 1,1915, were 103 and 

 1,651 bales, respectively. 



The Cotton Worm. -According to a note in the 

 Journal of Economic Entomology, the past season witnessed 

 an outbreak of the cotton worm (Alabama argillacea) which 

 was the most severe experienced in the cotton belt for many 

 years. In parts of Arkansas and Mississippi all the given 

 portions of the cotton plants we re destroyed in October. 

 Ordinarily this outbreak would have attracted more attention, 

 but the peculiar conditions which prevailed in regard to the 

 marketing of the crop were such that the insect's injury 

 was not generally considered important. 



Cotton-seed Oil in Butter.— An interesting article 

 appears in X<u,iy (April 8, 1915) entitled Modern Substi- 

 tutes t..i Butter. \lan\ tropical products arc 1 utilized, particu- 



d oil, co. it oil ami palm kernel oil. as well 



as theSheaand Suari nut oils. These form common con 

 stituents of margarine. In the utilization of edible vegetable 

 oils like the above, as substitutes for animal fats found in 

 milk, everything depends upon skilful refining, and it is 



,i thai as the knowledge of refining ro increa 



the development of the industry will be still greater. 



INDIAN CORN. 



One oi the conclusions arrived at in Bulletin No. 168 ol 

 the University of Illinois Agricultural Experiment Station, 



l d ,i with the study ol the developnn growing 



that daily rations o d corn, bl 1 meal, and an 



ample amount of calcium phosphate, containing respectively 



0-70 and 09 I He Of digestible protein, and yielding respective 



is 1-28 and !"_".• therms ol ruetabolizable energy per 1001b. 

 livewei rafficient for the not l rition of young, 



growing pigs. 



FEEDING AND MANURIAL VALUE 

 OF MAIZE. 



The following paper was lead by 1 >r. H. A. 



Tempany on April 9, 1915, al a gi neral meeting of the 



Antigua Agricultural Society: — 



In view of the considerable interest now being aroused 

 in Antigua and other West Indian islands in the cultivation 

 of maize, the following notes concerning the feeding value 

 and manurial requirements of the crops may be apropos at 



the present time, and at tin- same time may also serve 



a useful purpose by affording clear and definite information 



on certain point-, which have hitherto been locally the 

 subject ot a considerable amount ol vague speculation. 



In the firsl instance, to deal with the manurial require- 

 ments of the crop. Determinations performed in the Govern- 

 ment Laboratorj here have shown on analysis the following 

 contents of manurial material for the grain itself:— 



On water free material, nitrogen L96, phosphoric acid 

 0-89, potash 0-31. 



In relation to the cob similar determinations showed the 

 following results: — 



On water free material, nitrogen 0"43, phosphoric acid 

 0-22, potash 029. 



The relationship borne by the weight of corn to the 

 weight of cob has ..Is., been studied both in the Laboratory 

 and in the Government Granary: ol course this varies 

 considerably with different varieties, but with the average 

 run of corn encountered in Antigua at the present time, the 



n value ot.su per cent, can 1 think be assumed with 

 safety [n South Africa, Mr. Burtt Haw gives 82-13 per cent, 

 as mean value for this figure with a range of from 7388 per 

 cent, to 86"83 per cent. 



In order to arrive at the actual amount of manurial 

 material removed in a <rop of maize, it is further necessary to 

 know the average amounts of moisture contained in field-dried 

 grain and cob. As the means of a large number of di 

 initiations we have found that Antigua field-dried com 

 contains, on the average, 16*6 per cent, of moisture, while the 

 air-dry cobs show 9'5 percent. 



From these data we can calculate the amount of manurial 



material removed in crops of com of various dn 



Under West In. liar, conditions there does not appear to be 



any reason to doubt that average crops of shelled grain at the 

 : |u bushels per acre at least may be looked for. 

 From the above values it follows that in a crop of tl 

 dimensions the following amounts of manurial material are 



removed-. 



1 .rain. Cobs. Total cobs 



and grain. 

 Nitrogen 36-65 lb. 219 to. 38-84 H>. 



Phosphoric acid 1(>-6I .. 11-., I 7 7 (> „ 



Potash 5-80 .. I -is ,. 7-28 „ 



This in terms of manures in ordinary use is appiox- 

 imately equivalent to 2 cwt. of sulphate of ammonia, I cwt. of 

 basic slag, and 1 I to. of sulphate of potash, and contains 

 approximately the same amount ol manurial matei 



21 tons of good p.-n manure. 



It must not be forgotten, however, thai in addition to 

 the grain and cobs, the corn stalks or stover are also 



ible for the removal of manurial material from fields 

 ing com. 



