392 HORTUS GRAMINEUS WOBURNENSIS. 



Produce per Acre, 



dr. qr. lbs. 



Herbage, 110 oz. The produce per acre - 74868 12 



80 dr. of grass weigh, when dry - 30 7 oft07r lo o 

 The produce of the space, ditto - 660 3 



The weight lost by the produce of one acre in drying 46793 



64 dr. of grass afford of nutritive matter 2 2 7 0Q04 « n 

 The produce of the space, ditto - 68 3 3 

 At the time the seed is ripe, the produce is — 



Herbage, 144 oz. The produce per acre - . 98010 



80 dr. of grass weigh, when dry - 34 ) 415(^4 4 n 

 The produce of the space, ditto - 979 0^ 3 

 The weight lost by the produce of one acre in drying 56355 12 



64 dr. of grass afford of nutritive matter 2 3 7 4911 r a 

 The produce of the space, ditto - 99 3 



The root of this species of clover is biennial when the plant is 

 permitted to perfect its seed ; but if kept from flowering, the root 

 remains fertile for four or five years. It produces little after-grass, 

 but a great weight of crop at the time of flowering. In this 

 respect it is much superior to most other plants of the same class 

 employed in alternate cropping, as the following particulars ma- 

 nifest : — 



lbs. 



Trifolmm prutense (broad-leaved red clover), produce per acre, herbage 49005 



Ditto, - hay - 12251 



Affords, ditto, of nutr. matter 1914 



Medicago sativa (lucern), from a soil of the like nature, produces grass - 70785 



Ditto, - hay - 28314 



Affords of nutritive matter 1 659 



Hedysanim onohrychis (sainfoin), - produces per acre, herbage, 8848 



Ditto, - hay - 3539 



Affords of nutritive matter 345 



It requires good shelter, and a deep soil. The deficiency of 

 latter-math takes much from the merits of this plant. Under cir- 

 cumstances where it may be desirable to plough up the land after 

 the summer crop is taken, hardly any plant can be more valuable 

 than this one ; as in this respect, from the foregoing facts, it is 

 evident that the plant, on an equal soil, affords twice the quantity 

 of nutritive matter of that afforded by the broad-leaved clover. 

 The produce of lucern, in quantity, comes nearer to this clover, but 



