REPORT OF TEE DIRECTOR 



37 



SESSIONAL PAPER No. 16 



EXPERIMENTS WITH FERTILIZERS ON ROOTS : VLOTS OF MANGELS AND TURNIPS 



^TH ACRE EACH. 



! Fertilizers applied each year from 

 ' 1889 to 189S or 1899. No fertiliztrs 

 used since. Clover sown in 1900 

 in jjlace of the roots and ])loughcd 

 inider in May, 1901, before the 

 roots were sown. 



o 



AvEKAGE Yield 



KOK 



Twelve Ye.\ks. 



INlanpels, 



Weif^ht 



of Roots. 



Per Acre. 



Barn-yard manure (mixed horse and 

 cow manure) well rotted, 20 tons 

 per acre each year from 1889 to 

 1S9S inclusive. No manure has 

 been ap])lied since then 



Barn-yard manure (mixed horse and 

 cow manure) fresh, 20 tons per 

 acre each year from 1889 to 1898 

 inclusive. No manure has been 

 applied since then 



L^'nmanured from the beginuingr 



4 Mineral phosphate, untreated, finely 

 ground, 1,000 lbs. per acre, used 

 each year from 1889 to 1897, in- 

 clusive. In 1898 and 1899 a similar 

 weight of the Thomas ' phosphate 

 was used. No fertilizers have been 

 applied since then 



Mineral phosphate, unti'eated, finely 

 ground, 1,000 lbs., nitrate of soda, 

 250 lbs. wood ashes, unleached, 

 1,000 lbs. per acre, used each year 

 from 1889 to 1897 inclusive. In 

 1898 and 1899, 500 lbs. of the Tho 

 mas' phosphate was used in place 

 of the mineral phosphate. No fer- 

 tilizers have been apph'ed since then. 



Barn-yard manure, partly rotted and 

 actively fermentmg, 6 tons per 

 acre ; mineral phosphate untreated, 

 finely ground, 1,000 lbs. per acre, 

 composted together, intimately 

 mixed and allowed to heat for 

 several days before using, applied 

 each year from 1889 to 1897 inclu- 

 sive. In 1898 1,000 lbs. of Thomas' 

 phosphate was used in place of 

 tlie mineral phosphate. No fertili- 

 zers have been applied since then. . 



Mineral phosphate, untreated, finely 

 ground, 1,000 lbs.; sulphate of 

 jKjtash, 200 lbs. in 1889 and 1890 

 (substituted by muriate of potash, 

 250 lbs. in 1891 and subsequent 

 years) ; nitrate of soda, 200 lbs. per 

 acre, used each year from 1889 to 

 1897 inclusive. In 1898 and 1899 

 1,000 lbs. of the Thomas' phosphate 

 was used in place of the mineral 

 phosphate. No fertilizers have 



been applied since then 



Mineral superphosphate, No. 1, 500 

 lbs.; sulphate of potash, 200 lbs. in 

 1889 and 1890 (substituted by mur 

 iate of potash, 2o0 lbs. in 1891 and 

 subsequent years) ; nitrate of soda, 

 200 lbs. per acre, used each year 

 from 1889 to 18S!9 inclusive. No 

 fertilizers have bAen applied since 

 then 



Tons. lbs. 



22 1,089 



Turnijjs, 



Weight 



of Roots. 



Per Acre. 



Tons. lbs. 



15 1,194 



21 1,041 15 1,522 



8 1,75G 7 859 



8 835 7 1,837 



14 



G17 



10 77 



18 2G4 



11 



380 



13th Reason, 1902. 

 Vakietjes. 



West Half 

 Plot. 



Mangels, 



Mammoth 



Long Red: 



Weight 



of Roots. 



Per Acre. 



Tons. lbs. 



23 1,400 



19 1,800 

 11 520 



13 480 



19 840 



East Half 

 Plot. 



Turnips, 

 Purple 



Top 



Swede : 



Weight 



of Roots. 



Per Acre. 



Tons. lbs. 



16 920 



15 1,520 

 7 920 



8 7C0 



Average Yield 



FOR 



Thirteen Years. 



Mangels, 



Weight 



of Roots. 



Per Acre. 



Tons. lbs. 



22 1,207 



21 

 9 



792 

 122 



Turnips, 



Weight 



of Roots. 



Per Acre. 



Tons. lbs. 



15 1,327 



15 1,522 

 7 804 



8 1,577 



9 400 14 1,403 



13 308 IG 1,520 10 1,G40 



9 1.2.32 



IG 1,640 



8 600 



1,908 



9 1,943 



18 53 12 1,949 



11 1,252 



9 1,030 



13 1,G49 12 396 17 280 7 280 14 159, 11 1,018 



