l6l8 FORAGE CROPS, MEADOWS AND PASTURES 



Although the yield from the inoculated plots was almost double at 

 the first cutting, it remains to be seen whether the difference will reappear 

 in later cuttings. 



On the basis of yield in green or dry weight at current prices, inocu- 

 lation resulted in a financial gain of 27s 6i per acre, taking the average 

 yield of the first cutting of the two test plots compared with that of the 

 controls. In commercial dealings with forage in Uruguay the price is 

 never based on the feeding value. 



Discussion of results and conclusions. — The following conclusions are 

 based only on the results of the first cutting, and further data are neces- 

 sary to confirm them : 



i) The influence of nitragin does not manifest itself during the pe- 

 riods of germination and early growth. 



2} During the period preceding flowering the effect of nitragin shows 

 itself in increased and more vigorous growth. 



3) The yield from inoculated lucerne fields is greater than that 

 from untreated fields. 



4) Inoculated lucerne fields offer greater resistance to the attacks 

 of Pseudopeziza Medicaginis. 



The figures of the second cutting, given in Table II, confirm the fore- 

 going conclusions. 



1 181 - The Forage Question in Aragon, Spain. — i^apazdrAn j., in Ministeno de Fomento, 



Direccion general de Agricultura, Minas y Mantes, Year X, No. i6, pp. 1-16. Madrid, August 

 1916. 



The objection to lucerne growing arises chiefly from the fact that 

 this crop occupies the land for several years, and the suggestion is made 

 that it should be replaced by clover or, better still, by Vicia villosa (winter 

 or spring varieties) or by V. saliva (autumn variety). The vetches do not 

 occupy the land for more than 8 or 10 months, so they may be grown 

 as a catch crop on the cereal stubble before the . ground is occupied the 

 following season by transplanted mangels or maize grown for grain. 



On well worked and manured Aragon soils which are not too damp 

 the yield of vetches is ii to 12 tons per acre of green forage or 2 % to 3 

 tons of hay per acre. 



Rotations used in tlw provinces. 



state Experimental Farm Non-irrigated 



of Saragossa new soils 



i) Sugar beet i) Fallow 



2) Wheat or clover 2) Oats 



3) Clover 3) Vetches 



4) Wheat 4) Wheat 

 3) Vetches and maize 



6) Wheat or clover 



7) Clover 



8) Wheat 



