746 EXPERIMENT STATION REf'ORD. 



.'(I kfj. (about 44.5 lbs.). The results show that the applicatiou of 10 kg. of 

 suli)hate of manganese per hectare had no effect on the yield, while the use of 

 r)0 kg. Increased the yield by 7 per cent. 



A similar test was conducted on plats which had received no nitrogenous 

 fertilizer and on others which had received 50,000 kg. of barnyard manure per 

 hectare (about 44.500 lbs. per acre) two years before. Regarding the check 

 test as 100, the yields of the plats without manure are represented by 104 

 where 10 kg. of sulphate of manganese was used and by 109 where 50 kg. 

 were applied, while on the plats treated with barnyard manure these figures 

 were, resiiectively. 105 and 111. From these results it is concluded that the 

 action of the manganese on the yield can not be attributed entirely to the 

 influence of this substance on the availability of the nitrogen of the soil. 



On a number of plats of sugar beets receiving a general application of 500 

 kg. each of superphosphate, nitrate of soda, and kainit per hectare (about 445 

 lbs. per acre), several being treated with 10 and 50 gm. of sulphate of manga- 

 nese i)er hectare, it was shown that this crop is not so favorably influenced by 

 the application of manganese as the potato. 



Plant food consumption of the beet during the first year of growth, and 

 its relation to the sugar content, K. AndrlIk and J. T'rban (Ztscfir. Ziiekerin- 

 (li(f<. Huh men. ,li {1!>0S), \o. 10, pp. 559-575). — Attention is called to the 

 fact that owing to the influence of soil, seed, fertilizing, and weather the potash 

 consumption of the beet may vary greatly. As determined by the authors the 

 minimum consumption amounted to 156.9 kg. for 400 quintals (about 3.92 lbs. 

 for 1,000 lbs.) of beets. As a rule the consumption is much higher. The 

 quantity of potash taken up by the plant was increased through fertilizing 

 with potash salts and barnyard manure. 



Potash consumption is influence<l by the amount of available potash present 

 in the soil. In dry weather the beet uses comi)aratively little potash, even if 

 heavily fertilized with the substance. Different kinds of seed, as well as the 

 same kind of seed grown on different soils and in different years, also affected 

 the potash consumption of the plant. 



A heavy consumption of potash indicates a large leaf growth rather than 

 an increased yield in beets and sugar. The authors found in the samples exam- 

 ined that the quantity of potash used in the production of 100 parts of sugar 

 in the beet ranged from 2.1 to 5.8 parts. It was further shown that the greater 

 percentage of potash is deposited in the leaves, the quantities found in the root 

 ranging from 32.1 to 41.5 per cent of the total used by the plant. It was ob- 

 served that where 400 quintals of beets used 156.9 kg. of potash, 100 parts of 

 sugar corresponded to 0.75 part of potash, where 177.5 kg. were used to 1.01 

 parts, and where the potash consumption rose to 303 kg. to 1.72 parts. Varia- 

 tions due to the kind of seed ranged from 0.2 to 0.7 part of potash used per 

 100 parts of sugar produced. 



Fertilizer experiments with seed beets {Centhl. Ztwlprindus., 16 {1908), 

 No. Jf9, pp. 1320, 1321). — The following fertilizer applications were made in 

 the experimental culture of seed beets: Well-rotted and pulverized chicken 

 manure and air-dry sugarhouse refuse 690 kg., sodium superphosphate 230 kg., 

 dry wood ashes 460 kg., and nitrate of soda 230 kg. per hectare. The increase 

 in yield per hectare for the different substances was as follows: Chicken ma- 

 nure on one plat 660 kg., on another plat 750 kg., sugarhouse refuse 270 kg., 

 sodium superphosphate 310 kg., dry wood ashes 470 kg., and nitrate of soda 

 55(( kg. These experiments were carried on in southwest Kussia where chicken 

 manure and wood ashes may be obtained at a relatively low co.st, and in view 

 of this fact these two substances were very much more profitable than the 

 higher priced commercial fertilizers. 



